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        "title": "Right-size images for viewport",
        "pageCount": 94,
        "totalEstimatedSavingsBytes": 28242189,
        "totalEstimatedBlockingMs": 0
      },
      {
        "id": "unused-css-rules",
        "title": "Remove unused CSS",
        "pageCount": 93,
        "totalEstimatedSavingsBytes": 8237858,
        "totalEstimatedBlockingMs": 0
      },
      {
        "id": "uses-text-compression",
        "title": "Enable text compression",
        "pageCount": 93,
        "totalEstimatedSavingsBytes": 710119,
        "totalEstimatedBlockingMs": 0
      },
      {
        "id": "render-blocking-resources",
        "title": "Eliminate render-blocking resources",
        "pageCount": 93,
        "totalEstimatedSavingsBytes": 0,
        "totalEstimatedBlockingMs": 30218
      },
      {
        "id": "offscreen-images",
        "title": "Lazy-load offscreen images",
        "pageCount": 76,
        "totalEstimatedSavingsBytes": 17911862,
        "totalEstimatedBlockingMs": 0
      },
      {
        "id": "uses-optimized-images",
        "title": "Compress oversized image assets",
        "pageCount": 52,
        "totalEstimatedSavingsBytes": 19493888,
        "totalEstimatedBlockingMs": 0
      },
      {
        "id": "unminified-javascript",
        "title": "Minify JavaScript",
        "pageCount": 43,
        "totalEstimatedSavingsBytes": 331883,
        "totalEstimatedBlockingMs": 0
      }
    ]
  },
  "offlineSupportSummary": {
    "wsgReference": {
      "title": "Optimize caching and support offline access",
      "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
    },
    "assessedPages": 100,
    "averageScore": 100,
    "highUrgencyPages": 100,
    "pagesWithoutServiceWorker": 100,
    "pagesWithoutOfflineSupport": 100,
    "pagesWithWeakCacheTtl": 100,
    "recurringOpportunities": [
      {
        "id": "service-worker",
        "title": "Add service worker support",
        "urgency": "high",
        "pageCount": 100
      },
      {
        "id": "works-offline",
        "title": "Ensure critical routes work offline",
        "urgency": "high",
        "pageCount": 100
      },
      {
        "id": "installable-manifest",
        "title": "Improve web app manifest support",
        "urgency": "medium",
        "pageCount": 100
      },
      {
        "id": "uses-long-cache-ttl",
        "title": "Strengthen static asset cache TTL",
        "urgency": "high",
        "pageCount": 100
      },
      {
        "id": "offline-start-url",
        "title": "Support offline start URL behavior",
        "urgency": "medium",
        "pageCount": 100
      }
    ]
  },
  "languageVersionSummary": {
    "wsgReference": {
      "title": "Use the latest stable language version",
      "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
    },
    "assessedPages": 100,
    "averageScore": 0,
    "highUrgencyPages": 0,
    "pagesWithOutdatedRuntimeSignals": 0,
    "pagesWithVersionDisclosure": 0,
    "topOutdatedSignals": []
  },
  "siteGuidance": {
    "siteCount": 2,
    "singleSiteScan": false,
    "sites": [
      {
        "origin": "https://www.energy.gov",
        "pageCount": 99,
        "sharedRecommendations": [
          {
            "area": "expected-files",
            "urgency": "low",
            "title": "Publish .well-known/security.txt",
            "detail": ".well-known/security.txt is missing for all sampled pages on https://www.energy.gov."
          },
          {
            "area": "security-headers",
            "urgency": "high",
            "title": "Apply Content-Security-Policy site-wide",
            "detail": "CSP is absent across all sampled pages on https://www.energy.gov."
          },
          {
            "area": "offline-support",
            "urgency": "high",
            "title": "Introduce service worker support",
            "detail": "No sampled pages on https://www.energy.gov indicate service worker support for offline resilience."
          },
          {
            "area": "offline-support",
            "urgency": "high",
            "title": "Support offline fallback behavior",
            "detail": "Offline page behavior was not detected across sampled pages on https://www.energy.gov."
          },
          {
            "area": "optimization",
            "urgency": "medium",
            "title": "Fix recurring optimization bloat at shared layer",
            "detail": "Remove unused JavaScript recurs across 93 pages on https://www.energy.gov (est. 81.16 MB aggregate savings)."
          },
          {
            "area": "compression",
            "urgency": "high",
            "title": "Prioritize recurring compression fixes",
            "detail": "Use modern image compression formats recurs across 93 pages on https://www.energy.gov (est. 79.34 MB aggregate savings)."
          },
          {
            "area": "offline-support",
            "urgency": "high",
            "title": "Prioritize recurring offline/caching improvements",
            "detail": "Add service worker support is needed across 99 pages on https://www.energy.gov."
          }
        ],
        "recurringCompression": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "pageCount": 93,
            "totalEstimatedSavingsBytes": 83191279.10000002
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "high",
            "pageCount": 93,
            "totalEstimatedSavingsBytes": 710119
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "pageCount": 52,
            "totalEstimatedSavingsBytes": 19493888
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "pageCount": 43,
            "totalEstimatedSavingsBytes": 331883
          }
        ],
        "recurringOptimization": [
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "pageCount": 93,
            "totalEstimatedSavingsBytes": 85104098,
            "totalEstimatedBlockingMs": 0
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "pageCount": 93,
            "totalEstimatedSavingsBytes": 83191279.10000002,
            "totalEstimatedBlockingMs": 0
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "pageCount": 93,
            "totalEstimatedSavingsBytes": 28194529,
            "totalEstimatedBlockingMs": 0
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "pageCount": 93,
            "totalEstimatedSavingsBytes": 8237858,
            "totalEstimatedBlockingMs": 0
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "pageCount": 93,
            "totalEstimatedSavingsBytes": 710119,
            "totalEstimatedBlockingMs": 0
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "pageCount": 92,
            "totalEstimatedSavingsBytes": 0,
            "totalEstimatedBlockingMs": 29899
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "pageCount": 75,
            "totalEstimatedSavingsBytes": 11129606,
            "totalEstimatedBlockingMs": 0
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "pageCount": 52,
            "totalEstimatedSavingsBytes": 19493888,
            "totalEstimatedBlockingMs": 0
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "pageCount": 43,
            "totalEstimatedSavingsBytes": 331883,
            "totalEstimatedBlockingMs": 0
          }
        ],
        "recurringOfflineOpportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "pageCount": 99
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "pageCount": 99
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "pageCount": 99
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "high",
            "pageCount": 99
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "pageCount": 99
          }
        ],
        "recurringDependencies": [],
        "recurringRuntimeSignals": [],
        "pageSpecific": [
          {
            "url": "https://www.energy.gov/our-leadership-offices",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 68,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 2.65 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 1.22 MB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 2.65 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/cybersecurity",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 60,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.49 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 880.07 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.49 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/environmental-and-legacy-management",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 53,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.53 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 628.26 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.53 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/state-american-energy-promises-made-promises-kept",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 53,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 4.61 MB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 4.61 MB."
              },
              {
                "title": "Right-size images for viewport",
                "urgency": "high",
                "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 2.55 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/power-marketing-administrations",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 52,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.34 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 572.91 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.34 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/extreme-weather-resiliency",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 49,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.22 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 522.37 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.22 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/artificial-intelligence",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 49,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.17 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 548.03 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.17 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/digital-engagement-and-media",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 47,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.51 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 340.53 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.51 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/scep/wap/weatherization-assistance-program",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 47,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 4.58 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 414.85 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/commercialization",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 46,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.71 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 250.84 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.71 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/quantum-information-science",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 45,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.39 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 264.19 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.39 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/space-exploration-and-universe",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 45,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.23 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 443.64 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.23 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/energy-security",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 44,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.08 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 413.68 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.08 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/puerto-rico-grid-resilience-and-modernization",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 42,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.07 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 359.31 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.07 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/work-us-department-energy",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 40,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 977.40 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 345.15 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 977.40 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/american-manufacturing",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 38,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 2.06 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 420.80 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "high",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 200.32 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 14.80 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/nnsa/national-nuclear-security-administration",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 37,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 2.21 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 892.05 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/grid-deployment-and-transmission",
            "securityScore": 39,
            "dependencyScore": 10,
            "expectedFilesScore": 30,
            "compressionScore": 33,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.34 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 611.14 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.34 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/nuclear-security",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 36,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 2.12 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 897.30 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/internships-fellowships",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 36,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 749.10 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 358.20 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 912.32 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/tribal-energy-access",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 35,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 2.16 MB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 2.16 MB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.35 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/exhibits-museums-and-historic-facilities",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 33,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 761.27 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 272.63 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.88 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/researching-doe-records",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 33,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 761.27 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 272.63 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.52 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/manhattan-project-national-historical-park-history",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 31,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 717.20 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 229.78 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.55 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/earth-systems-modeling",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 30,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.39 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 259.51 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.39 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/manhattan-project-historical-resources",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 30,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 698.21 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 215.92 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.99 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/us-energy-information-administration-eia",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 29,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 517.77 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 245.70 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 891.67 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/supercomputing",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 29,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.17 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 449.01 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.17 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/energysaver/energy-saver",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 28,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.48 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 612.08 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/history",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 27,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.55 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 533.58 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/national-science-bowl",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 27,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.00 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 384.62 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.00 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/eere/funding/eere-funding-opportunities",
            "securityScore": 39,
            "dependencyScore": 10,
            "expectedFilesScore": 30,
            "compressionScore": 23,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.17 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 520.04 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/node/4847006",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 27,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.55 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 533.58 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/brief-history-department-energy",
            "securityScore": 29,
            "dependencyScore": 0,
            "expectedFilesScore": 30,
            "compressionScore": 42,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 918.71 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 409.10 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 918.71 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/EDF",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 25,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.42 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 363.79 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/budget-performance",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 25,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 624.93 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "medium",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 65.69 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.56 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/cancer-research",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 25,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.01 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 285.51 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.01 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/science/department-energy-nobel-laureates",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 24,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.78 MB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.78 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/save",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 24,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.25 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 438.69 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/timeline-events-1991-2000",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 24,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 576.84 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "medium",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 86.84 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.34 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/labs-and-field-site-histories",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 24,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 533.76 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "medium",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 134.06 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.65 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 23,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 4.72 MB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 4.72 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/ceser/emergency-response-hub-0",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 22,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.04 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 454.36 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/timeline-events-1938-1950",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 22,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 553.18 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "medium",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 50.68 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.82 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/timeline-events-1951-1970",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 21,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 509.78 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "medium",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 54.95 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.37 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/timeline-events-1971-1980",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 21,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 514.26 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "medium",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 51.36 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.83 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/timeline-events-1981-1990",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 21,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 513.95 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "medium",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 50.44 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 887.04 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/timeline-events-2002",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 21,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 511.69 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "medium",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 50.74 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.68 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/research-technology-and-economic-security",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 20,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 557.20 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.80 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 557.20 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/ig/office-inspector-general",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 20,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.23 MB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 174.89 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/timeline-events-2015",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 20,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 454.17 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "medium",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 93.24 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 894.34 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/newsroom",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 19,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 977.40 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 345.15 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/design",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 19,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.35 MB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.35 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/energy-workforce",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 19,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 682.81 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 199.07 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.72 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/us-department-energy-national-laboratories",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 15,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 754.80 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 223.00 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 10.85 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/management/historical-photographs",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 15,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 761.27 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 272.63 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/apprenticeships-workforce-development",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 14,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 337.19 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.33 KB."
              },
              {
                "title": "Lazy-load offscreen images",
                "urgency": "high",
                "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 342.33 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/ceser/does-use-federal-power-act-emergency-authority",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 13,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 309.59 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 890.95 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 309.59 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/advancing-innovation-technology-transitions-and-early-investments",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 12,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 557.20 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 888.64 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 557.20 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/science/office-science-funding-opportunities",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 11,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 246.23 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.72 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 246.23 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/OMEI/office-civil-rights-and-equal-employment-opportunity",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 10,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 427.66 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "high",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 187.21 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/cmei/femp/federal-energy-management-program-funding-opportunities",
            "securityScore": 39,
            "dependencyScore": 10,
            "expectedFilesScore": 30,
            "compressionScore": 5,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 272.17 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 883.90 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/management/cold-war-history",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 8,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 341.26 KB."
              },
              {
                "title": "Improve image encoding quality/size",
                "urgency": "medium",
                "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 102.57 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 5,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 412.52 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.43 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "high",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 412.52 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/indianenergy/current-funding-and-technical-assistance-opportunities",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 5,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 279.21 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 911.80 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/articles/energy-department-announces-largest-loan-department-history-delivering-over-7-billion",
            "securityScore": 39,
            "dependencyScore": 10,
            "expectedFilesScore": 30,
            "compressionScore": 1,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 880.41 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/articles/fact-sheet-president-trump-restoring-prosperity-safety-and-security-united-states-and",
            "securityScore": 39,
            "dependencyScore": 10,
            "expectedFilesScore": 30,
            "compressionScore": 1,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 884.33 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/articles/us-department-energy-reverses-biden-lng-pause-restores-trump-energy-dominance-agenda",
            "securityScore": 39,
            "dependencyScore": 10,
            "expectedFilesScore": 30,
            "compressionScore": 1,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 883.62 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/articles/fact-sheet-department-energy-ensuring-affordable-energy-access-ohio-while-powering-future",
            "securityScore": 39,
            "dependencyScore": 10,
            "expectedFilesScore": 30,
            "compressionScore": 1,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 884.40 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/articles/energy-department-announces-partnership-ensure-affordable-energy-and-power-americas-ai",
            "securityScore": 39,
            "dependencyScore": 10,
            "expectedFilesScore": 30,
            "compressionScore": 1,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 883.93 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/articles/energy-department-announces-293-million-funding-support-genesis-mission-national-science",
            "securityScore": 39,
            "dependencyScore": 10,
            "expectedFilesScore": 30,
            "compressionScore": 1,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 884.79 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/articles/trump-administration-keeps-coal-plant-open-ensure-affordable-reliable-and-secure-power",
            "securityScore": 39,
            "dependencyScore": 10,
            "expectedFilesScore": 30,
            "compressionScore": 1,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 884.17 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/contact-us",
            "securityScore": 39,
            "dependencyScore": 10,
            "expectedFilesScore": 30,
            "compressionScore": 1,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 1.05 MB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/open-government",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 5,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 97.15 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 899.99 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "medium",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 97.15 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/cio/articles/vulnerability-disclosure-policy",
            "securityScore": 39,
            "dependencyScore": 10,
            "expectedFilesScore": 30,
            "compressionScore": 1,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.57 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/whistleblower-protection-and-nondisclosure-agreements",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 5,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 97.15 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 884.91 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "medium",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 97.15 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/notice-court-orders",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 5,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 97.15 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 894.30 KB."
              },
              {
                "title": "Serve images in next-gen formats",
                "urgency": "medium",
                "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 97.15 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/management/articles/hewlett-and-anderson-new-world",
            "securityScore": 39,
            "dependencyScore": 10,
            "expectedFilesScore": 30,
            "compressionScore": 1,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.20 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/management/articles/hewlett-and-duncan-atomic-shield",
            "securityScore": 39,
            "dependencyScore": 10,
            "expectedFilesScore": 30,
            "compressionScore": 1,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 885.74 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/management/articles/hewlett-and-holl-atoms-peace-and-war",
            "securityScore": 39,
            "dependencyScore": 10,
            "expectedFilesScore": 30,
            "compressionScore": 1,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 887.12 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/topics/2025-doe-403-orders",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 4,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.68 KB."
              },
              {
                "title": "Remove unused CSS",
                "urgency": "medium",
                "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.58 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/funding-opportunities",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 4,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.33 KB."
              },
              {
                "title": "Remove unused CSS",
                "urgency": "medium",
                "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.92 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/cio/privacy-program",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 4,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "high",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 243.76 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.25 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/history-publications",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 4,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 885.44 KB."
              },
              {
                "title": "Remove unused CSS",
                "urgency": "medium",
                "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.63 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/historical-resources",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 4,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 887.16 KB."
              },
              {
                "title": "Remove unused CSS",
                "urgency": "medium",
                "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.69 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/oe/funding-opportunities-and-requests-information",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 2,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 97.15 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.18 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/hgeo/hgeo-solicitations-and-business-opportunities",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 2,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 97.15 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 890.49 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/gc/freedom-information-act",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 2,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 97.15 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 885.35 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/cio/accessibility-standard-statement",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 2,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 97.15 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 885.95 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/about-us/web-policies/privacy",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 2,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 97.15 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.63 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/cio/department-energy-information-quality-guidelines",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 2,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 97.15 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 885.33 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/web-policies",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 2,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 97.15 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 891.72 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/mesc/funding",
            "securityScore": 37,
            "dependencyScore": 8,
            "expectedFilesScore": 30,
            "compressionScore": 1,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "medium",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
              },
              {
                "title": "Minify JavaScript before transfer",
                "urgency": "low",
                "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
              },
              {
                "title": "Enable Brotli/gzip for text assets",
                "urgency": "low",
                "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "high",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 902.99 KB."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/management/articles/gosling-manhattan-project-making-atomic-bomb",
            "securityScore": 29,
            "dependencyScore": 0,
            "expectedFilesScore": 30,
            "compressionScore": 0,
            "optimizationScore": 0,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "No major compression opportunity detected",
                "urgency": "low",
                "detail": "Compression signals look healthy in current Lighthouse audits; continue enforcing compression and asset encoding in CI/CD."
              },
              {
                "title": "No obvious optimization bloat signals",
                "urgency": "low",
                "detail": "No major easy-win optimization opportunities were detected from current Lighthouse signals."
              },
              {
                "title": "Add service worker support",
                "urgency": "high",
                "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
              },
              {
                "title": "Ensure critical routes work offline",
                "urgency": "high",
                "detail": "Provide an offline fallback strategy for key pages and shell assets."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/management/articles/history-atomic-energy-commission",
            "securityScore": 29,
            "dependencyScore": 0,
            "expectedFilesScore": 30,
            "compressionScore": 0,
            "optimizationScore": 0,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "No major compression opportunity detected",
                "urgency": "low",
                "detail": "Compression signals look healthy in current Lighthouse audits; continue enforcing compression and asset encoding in CI/CD."
              },
              {
                "title": "No obvious optimization bloat signals",
                "urgency": "low",
                "detail": "No major easy-win optimization opportunities were detected from current Lighthouse signals."
              },
              {
                "title": "Add service worker support",
                "urgency": "high",
                "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
              },
              {
                "title": "Ensure critical routes work offline",
                "urgency": "high",
                "detail": "Provide an offline fallback strategy for key pages and shell assets."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/management/articles/history-energy-research-and-development-administration",
            "securityScore": 29,
            "dependencyScore": 0,
            "expectedFilesScore": 30,
            "compressionScore": 0,
            "optimizationScore": 0,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "No major compression opportunity detected",
                "urgency": "low",
                "detail": "Compression signals look healthy in current Lighthouse audits; continue enforcing compression and asset encoding in CI/CD."
              },
              {
                "title": "No obvious optimization bloat signals",
                "urgency": "low",
                "detail": "No major easy-win optimization opportunities were detected from current Lighthouse signals."
              },
              {
                "title": "Add service worker support",
                "urgency": "high",
                "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
              },
              {
                "title": "Ensure critical routes work offline",
                "urgency": "high",
                "detail": "Provide an offline fallback strategy for key pages and shell assets."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/management/articles/federal-energy-administration",
            "securityScore": 29,
            "dependencyScore": 0,
            "expectedFilesScore": 30,
            "compressionScore": 0,
            "optimizationScore": 0,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "No major compression opportunity detected",
                "urgency": "low",
                "detail": "Compression signals look healthy in current Lighthouse audits; continue enforcing compression and asset encoding in CI/CD."
              },
              {
                "title": "No obvious optimization bloat signals",
                "urgency": "low",
                "detail": "No major easy-win optimization opportunities were detected from current Lighthouse signals."
              },
              {
                "title": "Add service worker support",
                "urgency": "high",
                "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
              },
              {
                "title": "Ensure critical routes work offline",
                "urgency": "high",
                "detail": "Provide an offline fallback strategy for key pages and shell assets."
              }
            ]
          },
          {
            "url": "https://www.energy.gov/lm/articles/fehner-and-holl-department-energy-1977-1994-summary-history",
            "securityScore": 29,
            "dependencyScore": 0,
            "expectedFilesScore": 30,
            "compressionScore": 0,
            "optimizationScore": 0,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "No major compression opportunity detected",
                "urgency": "low",
                "detail": "Compression signals look healthy in current Lighthouse audits; continue enforcing compression and asset encoding in CI/CD."
              },
              {
                "title": "No obvious optimization bloat signals",
                "urgency": "low",
                "detail": "No major easy-win optimization opportunities were detected from current Lighthouse signals."
              },
              {
                "title": "Add service worker support",
                "urgency": "high",
                "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
              },
              {
                "title": "Ensure critical routes work offline",
                "urgency": "high",
                "detail": "Provide an offline fallback strategy for key pages and shell assets."
              }
            ]
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            "url": "https://www.energy.gov/management/articles/gosling-and-fehner-closing-circle",
            "securityScore": 29,
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            "languageScore": 0,
            "urgency": "high",
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              },
              {
                "title": "No obvious optimization bloat signals",
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                "detail": "No major easy-win optimization opportunities were detected from current Lighthouse signals."
              },
              {
                "title": "Add service worker support",
                "urgency": "high",
                "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
              },
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                "detail": "Provide an offline fallback strategy for key pages and shell assets."
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        "pageCount": 1,
        "sharedRecommendations": [
          {
            "area": "expected-files",
            "urgency": "high",
            "title": "Add robots.txt at site origin",
            "detail": "robots.txt is missing for all sampled pages on https://genesis.energy.gov."
          },
          {
            "area": "expected-files",
            "urgency": "medium",
            "title": "Add sitemap.xml at site origin",
            "detail": "sitemap.xml is missing for all sampled pages on https://genesis.energy.gov."
          },
          {
            "area": "expected-files",
            "urgency": "low",
            "title": "Publish .well-known/security.txt",
            "detail": ".well-known/security.txt is missing for all sampled pages on https://genesis.energy.gov."
          },
          {
            "area": "security-headers",
            "urgency": "high",
            "title": "Apply Content-Security-Policy site-wide",
            "detail": "CSP is absent across all sampled pages on https://genesis.energy.gov."
          },
          {
            "area": "security-headers",
            "urgency": "medium",
            "title": "Enable Strict-Transport-Security site-wide",
            "detail": "HSTS is missing across all sampled HTTPS pages on https://genesis.energy.gov."
          },
          {
            "area": "offline-support",
            "urgency": "high",
            "title": "Introduce service worker support",
            "detail": "No sampled pages on https://genesis.energy.gov indicate service worker support for offline resilience."
          },
          {
            "area": "offline-support",
            "urgency": "high",
            "title": "Support offline fallback behavior",
            "detail": "Offline page behavior was not detected across sampled pages on https://genesis.energy.gov."
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        ],
        "recurringCompression": [],
        "recurringOptimization": [],
        "recurringOfflineOpportunities": [],
        "recurringDependencies": [],
        "recurringRuntimeSignals": [],
        "pageSpecific": [
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            "url": "https://www.energy.gov/genesis",
            "securityScore": 59,
            "dependencyScore": 2,
            "expectedFilesScore": 75,
            "compressionScore": 0,
            "optimizationScore": 100,
            "offlineScore": 100,
            "languageScore": 0,
            "urgency": "high",
            "topRecommendations": [
              {
                "title": "Use modern image compression formats",
                "urgency": "low",
                "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 31.27 KB."
              },
              {
                "title": "Lazy-load offscreen images",
                "urgency": "high",
                "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 6.47 MB."
              },
              {
                "title": "Remove unused JavaScript",
                "urgency": "medium",
                "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 75.10 KB."
              },
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                "title": "Right-size images for viewport",
                "urgency": "medium",
                "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 46.54 KB."
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        "exampleUrl": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js"
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        "exampleUrl": "https://www.youtube.com/s/player/1ebf2aa6/player_ias.vflset/en_US/base.js"
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        "exampleUrl": "https://www.youtube.com/s/player/1ebf2aa6/www-player.css"
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        "totalEstimatedSavingsBytes": 85181005,
        "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand."
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        "title": "Defer non-critical UI modules until after first render",
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        "title": "Modularize heavy script asset from www.energy.gov",
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        "totalEstimatedSavingsBytes": 17911862,
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      {
        "title": "Modularize heavy image asset from www.energy.gov",
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        "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component."
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      {
        "title": "Modularize heavy script asset from www.googletagmanager.com",
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        "pageCount": 10,
        "totalEstimatedSavingsBytes": 1592179,
        "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles."
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      {
        "title": "Modularize heavy script asset from www.youtube.com",
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      "These 3 script bundles are recurring modularization targets. Move the fix to the shared bundle or component boundary so every affected page gets lighter at once.",
      "These 3 modularization targets recur across multiple pages. Centralize the fix at the component or bundle level instead of treating each page separately.",
      "Heavy assets from www.energy.gov recur across 93 pages. Review whether that dependency should be deferred, optimized, or loaded conditionally."
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      "finalUrl": "https://www.energy.gov/",
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          "modified": "2026-03-22T00:37:04.494037",
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                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/static.doubleclick.net",
              "error": null
            }
          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 10 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 13,
        "urgency": "high",
        "transferBytes": 21555562,
        "estimatedRedundantBytes": 994252,
        "redundancyRatio": 0.04612507899353308,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 906113,
            "displayValue": "Est savings of 885 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 88139,
            "displayValue": "Est savings of 86 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 906113,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 88139,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
      },
      "modularization": {
        "score": 49,
        "urgency": "high",
        "totalTransferBytes": 21555562,
        "heavyRequestCount": 26,
        "heavyBytes": 20747779,
        "heavyRatio": 0.962525542131539,
        "heavyRequests": [
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/img/ournetwork.jpeg",
            "transferSize": 8485669,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/2026-01/POTUS47_Inauguration.png",
            "transferSize": 2992063,
            "resourceType": "image",
            "mimeType": "image/png",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/2025-11/Genesis_Mission_Chip_Cropped.png",
            "transferSize": 1133990,
            "resourceType": "image",
            "mimeType": "image/png",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "transferSize": 1075224,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/2026-01/POTUS47_Flags_cropped.png",
            "transferSize": 1032343,
            "resourceType": "image",
            "mimeType": "image/png",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/regular.js",
            "transferSize": 859660,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone.js",
            "transferSize": 815415,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_ias.vflset/en_US/base.js",
            "transferSize": 702225,
            "resourceType": "script",
            "mimeType": "text/javascript",
            "domain": "www.youtube.com"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/solid.js",
            "transferSize": 683047,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_embed_es6.vflset/en_US/base.js",
            "transferSize": 440087,
            "resourceType": "script",
            "mimeType": "text/javascript",
            "domain": "www.youtube.com"
          },
          {
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "transferSize": 348760,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.youtube.com/s/embeds/c5dd6dc7/www-embed-player-pc-es6.vflset/www-embed-player-pc-es6.js",
            "transferSize": 301151,
            "resourceType": "script",
            "mimeType": "text/javascript",
            "domain": "www.youtube.com"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/brands.js",
            "transferSize": 219334,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "transferSize": 159195,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-MFMY1F6D3V&cx=c&gtm=4e63i0",
            "transferSize": 158516,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "transferSize": 157907,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e63i0",
            "transferSize": 148094,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L",
            "transferSize": 148081,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-WZQX9F4",
            "transferSize": 136326,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/2026-02/EDF-02-2026-Southern-FC-Web-DOE-Crop3.png",
            "transferSize": 127234,
            "resourceType": "image",
            "mimeType": "image/png",
            "domain": "www.energy.gov"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "image",
            "count": 5,
            "transferBytes": 13771299
          },
          {
            "resourceType": "script",
            "count": 19,
            "transferBytes": 6826121
          },
          {
            "resourceType": "stylesheet",
            "count": 2,
            "transferBytes": 150359
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 13,
            "transferBytes": 17976552
          },
          {
            "domain": "www.youtube.com",
            "count": 5,
            "transferBytes": 1621056
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1150171
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 65215,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 906113,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 8485669,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/img/ournetwork.jpeg",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "78.1 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 78.1 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0,
          "displayValue": "16.8 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 16.8 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 885 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 885 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 4,830 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 4,830 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 64 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 64 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-rel-preconnect",
          "title": "Preconnect to required origins",
          "description": "Consider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. [Learn how to preconnect to required origins](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/).",
          "score": 0,
          "displayValue": "Est savings of 330 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Preconnect to required origins\n\n- Lighthouse audit: uses-rel-preconnect\n- Current value: Est savings of 330 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nConsider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. [Learn how to preconnect to required origins](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0.5,
          "displayValue": "Est savings of 0 ms",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 893 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 546381,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 534 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 352728,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 344 KiB",
            "urgency": "high",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87403,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 85 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 477,
            "displayValue": "Est savings of 480 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.55 MB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 952.52 KB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.62 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 533.58 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "high",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 344.46 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.35 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 708264.6198324015
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 691.66 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 691.66 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 8083245,
        "css": {
          "unusedBytes": 87403,
          "ratio": 0.010812860429196443,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 914041,
          "duplicatedBytes": 0,
          "ratio": 0.11307847281630087,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0.125,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87403,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 914041,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 10,
        "urgency": "high",
        "transferBytes": 8083245,
        "estimatedDeferrableBytes": 1354172,
        "renderBlockingMs": 477,
        "breakdown": {
          "offscreenImageSavings": 352728,
          "unusedJavascriptSavings": 914041,
          "unusedCssSavings": 87403
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 352728,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914041,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87403,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 477,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075262,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 705715,
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2018/07/f53/Women%20Workers%20Shift%20Change%20Y-12_0_2.jpg?itok=23usXwSJ",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224638,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
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            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149549,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
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                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
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            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20764,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "modified": "2025-11-25T09:52:18",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17241,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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            "requestCount": 1,
            "transferBytes": 9498,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "modified": "2026-03-21T14:34:28.933004",
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            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 893,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
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              "status": "not-green",
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        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 27,
        "urgency": "high",
        "transferBytes": 8083245,
        "estimatedRedundantBytes": 1001444,
        "redundancyRatio": 0.12389133324549732,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 914041,
            "displayValue": "Est savings of 893 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 87403,
            "displayValue": "Est savings of 85 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914041,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 87403,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce DOM complexity and redundant markup",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "auditId": "dom-size",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
      },
      "modularization": {
        "score": 51,
        "urgency": "high",
        "totalTransferBytes": 8083245,
        "heavyRequestCount": 22,
        "heavyBytes": 7599283,
        "heavyRatio": 0.9401277580971503,
        "heavyRequests": [
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "transferSize": 1075262,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/regular.js",
            "transferSize": 859444,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone.js",
            "transferSize": 815434,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2018/07/f53/Women%20Workers%20Shift%20Change%20Y-12_0_2.jpg?itok=23usXwSJ",
            "transferSize": 705715,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/solid.js",
            "transferSize": 683004,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2024-11/Einsten-letter.jpg?itok=1iWI2wDP",
            "transferSize": 433384,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/10542648743_cfb6e97fce_k_0.jpg?itok=in2eQDUQ",
            "transferSize": 363949,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "transferSize": 348760,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/styles/banner_square/public/2024-11/10542648743_cfb6e97fce_k_0.jpg?itok=bcHkCjsl",
            "transferSize": 295393,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/img/Photo-FallBackImage-new.png",
            "transferSize": 288484,
            "resourceType": "image",
            "mimeType": "image/png",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/brands.js",
            "transferSize": 219287,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/styles/banner_tall/public/2024-11/10542648743_cfb6e97fce_k_0.jpg?itok=-2YdP35N",
            "transferSize": 171379,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "transferSize": 159195,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-MFMY1F6D3V&cx=c&gtm=4e63i0",
            "transferSize": 158516,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "transferSize": 157540,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e63i0",
            "transferSize": 148094,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L",
            "transferSize": 148081,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-WZQX9F4",
            "transferSize": 136217,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-PCSS9JS&gtm_auth=rQjC8QLyy7zCI51ldZjEbA&gtm_preview=env-3&gtm_cookies_win=x",
            "transferSize": 126139,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=UA-17192165-1&cx=c&gtm=4e63i0",
            "transferSize": 115767,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "script",
            "count": 15,
            "transferBytes": 5249025
          },
          {
            "resourceType": "image",
            "count": 6,
            "transferBytes": 2258304
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91954
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 14,
            "transferBytes": 6449734
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149549
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 352728,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 914041,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 1075262,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "9.8 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 9.8 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 893 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 85 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 85 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,592 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,592 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 534 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 534 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 344 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 344 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 480 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 480 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
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            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 914059,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 893 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87826,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 197,
            "displayValue": "Est savings of 200 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 2.65 MB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 1.22 MB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 935.20 KB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.64 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.77 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 499817.8773743015
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 488.10 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 488.10 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 10,
        "urgency": "high",
        "transferBytes": 5954848,
        "css": {
          "unusedBytes": 87826,
          "ratio": 0.014748655213365647,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 914059,
          "duplicatedBytes": 0,
          "ratio": 0.15349829248370403,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0.125,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87826,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 914059,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 7,
        "urgency": "high",
        "transferBytes": 5954848,
        "estimatedDeferrableBytes": 1064922,
        "renderBlockingMs": 197,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 914059,
          "unusedCssSavings": 87826
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914059,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87826,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 197,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 1406182,
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/949%20047%20001%5B1%5D.jpg?itok=fEgX5LJo",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348770,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224760,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149717,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
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          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20764,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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          },
          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17241,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "partner": null,
              "modified": "2025-11-25T09:13:07",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "id": 1365,
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                  "id": 1366,
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
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          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9498,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "modified": "2026-03-21T14:34:28.933004",
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
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            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
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              "status": "not-green",
              "green": false,
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              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
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        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 27,
        "urgency": "high",
        "transferBytes": 5954848,
        "estimatedRedundantBytes": 1001885,
        "redundancyRatio": 0.1682469476970697,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 914059,
            "displayValue": "Est savings of 893 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 87826,
            "displayValue": "Est savings of 86 KiB"
          }
        ],
        "recommendations": [
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            "title": "Reduce unused javascript",
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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            "auditId": "uses-text-compression",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
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            "title": "Reduce DOM complexity and redundant markup",
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            "auditId": "dom-size",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
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          "categoryId": "3",
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          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
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      "modularization": {
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        "urgency": "high",
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            "count": 8,
            "transferBytes": 3835275
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        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 914059,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 1406182,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/949%20047%20001%5B1%5D.jpg?itok=fEgX5LJo",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "14.8 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 14.8 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 893 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 2,714 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 2,714 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,251 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 1,251 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 200 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 200 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
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            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 913464,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 892 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 912426,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 891 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87470,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 85 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 182,
            "displayValue": "Est savings of 180 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 2.21 MB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 1.19 MB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 892.05 KB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 891.04 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.42 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 782665.2662011167
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 764.32 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 764.32 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 7,
        "urgency": "high",
        "transferBytes": 8839036,
        "css": {
          "unusedBytes": 87470,
          "ratio": 0.009895875523077403,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 912426,
          "duplicatedBytes": 0,
          "ratio": 0.10322686772629956,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
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        },
        "html": {
          "estimatedPenalty": 0.125,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87470,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 912426,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 5,
        "urgency": "high",
        "transferBytes": 8839036,
        "estimatedDeferrableBytes": 1062933,
        "renderBlockingMs": 182,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 912426,
          "unusedCssSavings": 87470
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 912426,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87470,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 182,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075226,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224593,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149549,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
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          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20764,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17241,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
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                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
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          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9499,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
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            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
              "error": null
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          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 26,
        "urgency": "high",
        "transferBytes": 8839036,
        "estimatedRedundantBytes": 999896,
        "redundancyRatio": 0.11312274324937696,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 912426,
            "displayValue": "Est savings of 891 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 87470,
            "displayValue": "Est savings of 85 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 912426,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 87470,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce DOM complexity and redundant markup",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "auditId": "dom-size",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
      },
      "modularization": {
        "score": 50,
        "urgency": "high",
        "totalTransferBytes": 8839036,
        "heavyRequestCount": 25,
        "heavyBytes": 8369403,
        "heavyRatio": 0.9468683010228717,
        "heavyRequests": [
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "transferSize": 1075226,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/regular.js",
            "transferSize": 859424,
            "resourceType": "script",
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            "domain": "www.energy.gov"
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          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone.js",
            "transferSize": 815461,
            "resourceType": "script",
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          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/solid.js",
            "transferSize": 683033,
            "resourceType": "script",
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            "domain": "www.energy.gov"
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            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2024-11/B61_VibrationShockLab%20%281%29%203x2%20crop_0.jpg?itok=l2FxWKIb",
            "transferSize": 657977,
            "resourceType": "image",
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            "domain": "www.energy.gov"
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            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/Quantum-photonics2-scaled_0.jpg?itok=rqmgf39v",
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            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "transferSize": 348768,
            "resourceType": "script",
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            "domain": "www.energy.gov"
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            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2025-01/MapTest.png?itok=epC47wTD",
            "transferSize": 312353,
            "resourceType": "image",
            "mimeType": "image/png",
            "domain": "www.energy.gov"
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          {
            "url": "https://www.energy.gov/sites/default/files/styles/banner_square/public/2024-11/Quantum-photonics2-scaled_0.jpg?itok=eTxsaocQ",
            "transferSize": 308583,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/styles/collection_square/public/2024-11/3P0A9933_0.jpg?itok=YFClkZ39",
            "transferSize": 300242,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/img/Photo-FallBackImage-new.png",
            "transferSize": 288528,
            "resourceType": "image",
            "mimeType": "image/png",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/styles/collection_square/public/2024-11/Vietnam%20HEU%20removal%202013_3_0.jpg?itok=a--pWKoD",
            "transferSize": 256176,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/brands.js",
            "transferSize": 219296,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/styles/collection_square/public/2024-11/150626-N-VZ328-060%203x2%20crop_0.jpg?itok=fQzQvAS-",
            "transferSize": 210479,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
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          {
            "url": "https://www.energy.gov/sites/default/files/styles/banner_tall/public/2024-11/Quantum-photonics2-scaled_0.jpg?itok=c02kwL5q",
            "transferSize": 181489,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "transferSize": 159195,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-MFMY1F6D3V&cx=c&gtm=4e63i0",
            "transferSize": 158516,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "transferSize": 157540,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e63i0",
            "transferSize": 148094,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L",
            "transferSize": 148081,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "script",
            "count": 15,
            "transferBytes": 5249052
          },
          {
            "resourceType": "image",
            "count": 9,
            "transferBytes": 3028413
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91938
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 17,
            "transferBytes": 7219854
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149549
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 912426,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 1075226,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "11.7 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 11.7 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 891 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 891 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 85 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 85 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 2,266 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 2,266 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 892 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 892 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 62 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 180 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 180 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.61,
          "displayValue": "5.1 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 5.1 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
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            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88309,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 225,
            "displayValue": "Est savings of 230 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 891.67 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 517.77 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 245.70 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.24 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Enable text compression",
            "urgency": "low",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 5.36 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 183352.4653631285
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 179.06 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 179.06 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 16,
        "urgency": "high",
        "transferBytes": 2717734,
        "css": {
          "unusedBytes": 88309,
          "ratio": 0.032493614165330385,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 913071,
          "duplicatedBytes": 0,
          "ratio": 0.33596775843404836,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88309,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 913071,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 13,
        "urgency": "high",
        "transferBytes": 2717734,
        "estimatedDeferrableBytes": 1001380,
        "renderBlockingMs": 225,
        "breakdown": {
          "offscreenImageSavings": 0,
          "unusedJavascriptSavings": 913071,
          "unusedCssSavings": 88309
        },
        "candidates": [
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 913071,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88309,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 225,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348776,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 326565,
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/AdobeStock_482832614.jpeg?itok=bexz2m8q",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.googletagmanager.com",
            "area": "script",
            "urgency": "medium",
            "estimatedSavingsBytes": 159192,
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0h1",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1225119,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149540,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26694,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
            }
          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20764,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
              "error": null
            }
          },
          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17775,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
              "error": null
            }
          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9499,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
              "error": null
            }
          },
          {
            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
              "error": null
            }
          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 28,
        "urgency": "high",
        "transferBytes": 2717734,
        "estimatedRedundantBytes": 1001380,
        "redundancyRatio": 0.3684613725993787,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 913071,
            "displayValue": "Est savings of 892 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 88309,
            "displayValue": "Est savings of 86 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
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            "auditId": "unused-javascript",
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          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
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          "displayValue": "5.5 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.5 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 892 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 892 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 518 KiB",
          "impact": "high",
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            "title": "Optimize media to reduce resource use",
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            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 518 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 246 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
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          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 246 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 230 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
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            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 230 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
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      "co2Grams": 2.5945390690596004,
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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        "score": 9,
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          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
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        "recommendations": [
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              "title": "Remove unnecessary code",
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          },
          {
            "area": "javascript",
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              "title": "Remove unnecessary code",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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          },
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              "title": "Defer the loading of non-critical resources",
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              "title": "Defer the loading of non-critical resources",
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              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
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          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
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          "title": "Give third parties the same priority as first parties during assessment",
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            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
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            "urgency": "high",
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          },
          {
            "title": "Reduce third-party script payload and requests",
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            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
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            "title": "Prioritize greener alternatives for third-party providers",
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            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
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            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-PCSS9JS&gtm_auth=rQjC8QLyy7zCI51ldZjEbA&gtm_preview=env-3&gtm_cookies_win=x",
            "transferSize": 126139,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
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          {
            "url": "https://www.googletagmanager.com/gtag/js?id=UA-17192165-1&cx=c&gtm=4e63i0",
            "transferSize": 115767,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
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            "url": "https://www.energy.gov/sites/default/files/js/js_jxVQ_87LozeZbfFipplrC9O3MiBhPAxqaiOXYyxwgtQ.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJxtjjEOwzAIRS8UhaU9j0UdaqNY2ALqJrdvBrtdOjDweQ_Y0LHgSQoPyti5qi0kpOkMKFhO52iQ8Baok3hwxbizpD9MranQL5hErOKXCaOlwwvLPqepdkAz8i-f7w2uCk8-ZmSEGjNga8vQYdNXw7LObUNax7HF2OnN2_VOIXVgYf8AKbFbbw",
            "transferSize": 98422,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
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            "url": "https://www.energy.gov/sites/default/files/css/css_O5fVRBFfj6fhEreA1DF4tUTO_NSTGRwryb9guQTJH-o.css?delta=1&language=en&theme=energy_gov&include=eJxNi1EOAiEQQy80Wb48z2YWGpiIQGYGdW-vJhL9aNK-trErQtI5uG5JuPZMaNB87vHT_PnFc78HNoMb4elV2nX9v5HKZYS3ttibozkNVs7Ko9ha_sg225hHFStIZOJ4SMLOFepBmjjZaY5bONjwApkyQwE",
            "transferSize": 91953,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/h5p/libraries/FontAwesome-4.5/fontawesome-webfont.woff2?v=4.5.0",
            "transferSize": 67481,
            "resourceType": "font",
            "mimeType": "font/woff2",
            "domain": "www.energy.gov"
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        ],
        "groupedByType": [
          {
            "resourceType": "image",
            "count": 4,
            "transferBytes": 4288617
          },
          {
            "resourceType": "script",
            "count": 10,
            "transferBytes": 1597101
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91953
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            "count": 1,
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        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 8,
            "transferBytes": 4895351
          },
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            "domain": "www.googletagmanager.com",
            "count": 8,
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        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 935958,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 3493883,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/h5p/content/1230/images/image-676061f046923.png",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348878,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.13,
          "displayValue": "6.0 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 6.0 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 914 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 914 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 85 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 85 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 755 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 755 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 223 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 223 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 320 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 320 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 6,614 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 6,614 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0.5,
          "displayValue": "1,066 elements",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 1,066 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/power-marketing-administrations",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/power-marketing-administrations",
      "performanceScore": 0.5,
      "bestPracticesScore": 0.79,
      "transferBytes": 3861649,
      "co2Grams": 1.4793259052286003,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149717,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
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                  "title": "Sustainability at Google",
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                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
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        "checks": {
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            "sourceAuditId": "modern-image-formats"
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            "id": "unused-javascript",
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            "sourceAuditId": "uses-optimized-images"
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            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
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            "sourceAuditId": "offscreen-images"
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            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 585.74 KB."
          },
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            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 572.91 KB."
          },
          {
            "title": "Remove unused CSS",
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            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.91 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
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          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
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            "title": "Add integrity attributes for external dependencies",
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            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
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      "offlineSupport": {
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 295000.4357541898
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 288.09 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 288.09 KB)."
          }
        ]
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          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "urgency": "low",
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            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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      "deadCode": {
        "score": 11,
        "urgency": "high",
        "transferBytes": 3861649,
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        "javascript": {
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          "auditIds": [
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        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
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            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
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            "estimatedSavingsBytes": 87972,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
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              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
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        "wsg": {
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          "offscreenImageSavings": 63037,
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        "candidates": [
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            "title": "Lazy-load offscreen images",
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            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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            "title": "Defer non-critical JavaScript",
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              "categoryId": "3",
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              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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              "categoryId": "3",
              "categoryName": "Web Development",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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              "categoryName": "Web Development",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
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            "estimatedSavingsBytes": 348777,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
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          "categoryName": "Web Development",
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          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "urgency": "high",
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        "notGreenCount": 3,
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            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
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                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
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            "hostname": "scripts.clarity.ms",
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            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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              "green": true,
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
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        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
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      "redundancy": {
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        "wasteByAudit": [
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            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
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              "categoryId": "3",
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              "categoryId": "3",
              "categoryName": "Web Development",
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              "title": "Modularize bandwidth-heavy components",
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              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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          {
            "title": "Modularize heavy image asset from www.energy.gov",
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            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
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          "title": "Modularize bandwidth-heavy components",
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      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.01,
          "displayValue": "8.6 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 8.6 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 893 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,374 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,374 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 573 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 573 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 400 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 400 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 3,771 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 3,771 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
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      "url": "https://www.energy.gov/newsroom",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/newsroom",
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      "bestPracticesScore": 0.79,
      "transferBytes": 7037592,
      "co2Grams": 2.6959705959888,
      "greenWeb": {
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          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
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          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
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            "greenCheck": {
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              "hostedBy": "Google Cloud",
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            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
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            "transferSize": 91955,
            "resourceType": "stylesheet",
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            "domain": "www.energy.gov"
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        "groupedByType": [
          {
            "resourceType": "script",
            "count": 15,
            "transferBytes": 5249406
          },
          {
            "resourceType": "image",
            "count": 4,
            "transferBytes": 1241187
          },
          {
            "resourceType": "stylesheet",
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            "transferBytes": 91955
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        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 12,
            "transferBytes": 5432831
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149717
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 350550,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 914417,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 1075479,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "10.2 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 10.2 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 893 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 977 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 977 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 345 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 345 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 342 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 342 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 320 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 320 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.67,
          "displayValue": "4.8 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 4.8 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 6,873 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 6,873 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0.5,
          "displayValue": "859 elements",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 859 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/digital-engagement-and-media",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/digital-engagement-and-media",
      "performanceScore": 0.48,
      "bestPracticesScore": 0.79,
      "transferBytes": 4094944,
      "co2Grams": 1.5686968804416,
      "greenWeb": {
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          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
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          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
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            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "partner": null,
              "modified": "2026-03-06T00:36:18",
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            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
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            "title": "No major form validation risks detected",
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            "title": "Add SRI to external scripts",
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            "sourceAuditId": "modern-image-formats"
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            "sourceAuditId": "offscreen-images"
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            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 340.53 KB."
          },
          {
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            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.09 KB."
          },
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            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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        "recommendations": [
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            "title": "Add integrity attributes for external dependencies",
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            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "score": 100,
        "urgency": "high",
        "checks": {
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          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
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        "opportunities": [
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            "title": "Add service worker support",
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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            "id": "works-offline",
            "title": "Ensure critical routes work offline",
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            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 310.37 KB)."
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        ],
        "recommendations": [
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            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
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            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
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            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
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            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 310.37 KB)."
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        ]
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "urgency": "low",
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            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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        "urgency": "high",
        "transferBytes": 4094944,
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          "duplicatedBytes": 0,
          "ratio": 0.22263894207100268,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
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        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
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            "domain": "www.energy.gov"
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            "url": "https://www.energy.gov/sites/default/files/js/js_zKKF6aMALZ8I4xNBLCovOiSmbp8brvk35JuqYftzvUo.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJxtjUEOwjAMBD9U4Qv_iUxipVYtJ7JNIL-nhwYuHHd3RlswUHCSwYN2HNzMN1KyOhMqygzODhXviQZppDDMB2v9w7RWhX7FInLTOE24Ir1DWI-11jYA3Sm-vBNa3gF73y4Wij07ym2pzkEvLueXkAWwcnwAqu9OzQ",
            "transferSize": 98295,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
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            "url": "https://www.energy.gov/sites/default/files/css/css_O5fVRBFfj6fhEreA1DF4tUTO_NSTGRwryb9guQTJH-o.css?delta=1&language=en&theme=energy_gov&include=eJxNi0EKwzAMBD8k4icFJV4cUdU2ktwkvy-Fmva2M8PuzZCyjc66ZGFthVBh5V73T_nb05f2SuyOcMIVKvUx_1-kzsbFuB8-y88so_axqfiBTC6BUzJWVlgkqRLktweeaWPHG8iYPWM",
            "transferSize": 91955,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
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        ],
        "groupedByType": [
          {
            "resourceType": "image",
            "count": 8,
            "transferBytes": 1880302
          },
          {
            "resourceType": "script",
            "count": 10,
            "transferBytes": 1597543
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91955
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 11,
            "transferBytes": 2419321
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1150479
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 911694,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 423211,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/AdobeStock_443655165_0.jpeg?itok=86aPza46",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348769,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.03,
          "displayValue": "7.7 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 7.7 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 890 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 890 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,549 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,549 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 341 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 341 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 210 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 210 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.87,
          "displayValue": "3.6 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 3.6 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 3,999 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 3,999 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/design",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/design",
      "performanceScore": 0.49,
      "bestPracticesScore": 0.79,
      "transferBytes": 7357857,
      "co2Grams": 2.8186581605598,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [
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            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149574,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
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                  "title": "Google 2024 Supplier Responsibility Report.",
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                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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            "id": "installable-manifest",
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          },
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              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
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          {
            "area": "javascript",
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              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
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          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
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          "displayValue": "13.2 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
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        },
        {
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          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
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          "displayValue": "Est savings of 893 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
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            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
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          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "auditId": "modern-image-formats",
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          "score": 0,
          "displayValue": "Est savings of 1,379 KiB",
          "impact": "high",
          "wsg": {
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            "title": "Optimize media to reduce resource use",
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          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,379 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
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          "impact": "high",
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            "categoryId": "3",
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          "title": "Enable text compression",
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          "score": 0.5,
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          "impact": "medium",
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            "categoryId": "3",
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          "score": 0.5,
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          "impact": "medium",
          "wsg": {
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            "title": "Define performance and environmental budgets",
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          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 7,185 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 37,
            "oversizedMedia": 0
          },
          {
            "device": "tablet",
            "viewportWidth": 820,
            "viewportHeight": 1180,
            "contentWidth": 820,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 40,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "high",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 37 small targets on mobile and 40 on tablet."
          }
        ]
      },
      "securityLight": {
        "score": 37,
        "urgency": "medium",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 4,
          "externalScriptsWithoutIntegrity": 4,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "age": "12",
            "cache-control": "max-age=2764800, public",
            "cache-tags": "HIT",
            "content-language": "en",
            "content-security-policy": "",
            "date": "Sun, 22 Mar 2026 00:39:39 GMT",
            "etag": "\"1774127430:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
            "last-modified": "Sat, 21 Mar 2026 21:10:29 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"96404d7d53c82521f63852c91100bb49\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"-429683606\"",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_3_sn_F416336CB60C08E8D6E90A0881D61F14_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "dOOyukHiWXMEvUK8Q3B530hXBeQQoj84MPNf17K6FGKdcAzuXH290w==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "2876378 10142824",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 36,
        "urgency": "medium",
        "totalEstimatedSavingsBytes": 3152314.3499999996,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "estimatedSavingsBytes": 2220533.3499999996,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "estimatedSavingsBytes": 918838,
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings."
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "estimatedSavingsBytes": 7454,
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 2.12 MB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 897.30 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 5545800.35,
        "totalEstimatedBlockingMs": 311,
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 2220533.3499999996,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 2,168 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 1038808,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,014 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 918838,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 897 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 914183,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 893 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 352728,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 344 KiB",
            "urgency": "high",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87767,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 311,
            "displayValue": "Est savings of 310 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 2.12 MB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 1014.46 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 897.30 KB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.76 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "high",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 344.46 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.71 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 783937.2784916199
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 765.56 KB)."
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        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 765.56 KB)."
          }
        ]
      },
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          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
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        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 5,
        "urgency": "high",
        "transferBytes": 8850674,
        "css": {
          "unusedBytes": 87767,
          "ratio": 0.00991641992462947,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 914183,
          "duplicatedBytes": 0,
          "ratio": 0.10328964777145785,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87767,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 914183,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 8850674,
        "estimatedDeferrableBytes": 1354678,
        "renderBlockingMs": 311,
        "breakdown": {
          "offscreenImageSavings": 352728,
          "unusedJavascriptSavings": 914183,
          "unusedCssSavings": 87767
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 352728,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914183,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87767,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 311,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075200,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 833601,
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/AdobeStock_1049792250.jpeg?itok=IjJ_RQY1",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224795,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
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            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 2,168 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
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          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 2,168 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 897 KiB",
          "impact": "high",
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            "categoryName": "User Experience Design",
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            "title": "Optimize media to reduce resource use",
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          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 897 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 344 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
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          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 344 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 310 ms",
          "impact": "high",
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            "categoryId": "3",
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            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
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          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
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          "wsg": {
            "categoryId": "3",
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            "title": "Remove unnecessary or redundant information",
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          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 8,643 KiB",
          "impact": "medium",
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            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
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            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
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          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 8,643 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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              "title": "Defer the loading of non-critical resources",
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          },
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              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "urgency": "high",
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        "unknownCount": 0,
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              "partner": null,
              "modified": "2026-03-06T00:36:18",
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          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,102 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,102 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 414 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
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          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 414 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 200 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
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          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 200 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
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          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
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          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "title": "Enable text compression",
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          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
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          "score": 0.5,
          "displayValue": "Total size was 3,428 KiB",
          "impact": "medium",
          "wsg": {
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            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 3,428 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 60,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 2465198.8,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "estimatedSavingsBytes": 1558522.8,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "estimatedSavingsBytes": 901187,
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.49 MB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 880.07 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 4481710.8,
        "totalEstimatedBlockingMs": 149,
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 1558522.8,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,522 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 952982,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 931 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 912376,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 891 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 901187,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 880 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88117,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 149,
            "displayValue": "Est savings of 150 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.49 MB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 930.65 KB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 890.99 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 880.07 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.05 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 319817.1357541898
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 312.32 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 312.32 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 11,
        "urgency": "high",
        "transferBytes": 4117442,
        "css": {
          "unusedBytes": 88117,
          "ratio": 0.021400908622392252,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 912376,
          "duplicatedBytes": 0,
          "ratio": 0.22158806365699868,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
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        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88117,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 912376,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 9,
        "urgency": "high",
        "transferBytes": 4117442,
        "estimatedDeferrableBytes": 1063530,
        "renderBlockingMs": 149,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 912376,
          "unusedCssSavings": 88117
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 912376,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88117,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 149,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 729193,
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2024-11/AdobeStock_874254255.jpeg?itok=_8G-URXC",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348761,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224685,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
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            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149642,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
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              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "partner": null,
              "modified": "2026-03-06T00:36:18",
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
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              "hostedBy": null,
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            "sampleUrl": "https://www.google-analytics.com/analytics.js",
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              "green": true,
              "hostedBy": "Google Cloud",
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            "resourceType": "script",
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            "transferBytes": 17241,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
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          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.05,
          "displayValue": "7.1 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 7.1 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 891 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 891 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,522 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,522 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 880 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 880 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 150 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
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        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 3911902.45,
        "totalEstimatedBlockingMs": 327,
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          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 1599419.45,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,562 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
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          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 914080,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 893 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 643338,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 628 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
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          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 598691,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 585 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
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          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87848,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
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          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
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            "estimatedBlockingMs": 327,
            "displayValue": "Est savings of 330 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
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          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
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            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
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            "title": "Serve images in next-gen formats",
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            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.53 MB."
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          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.66 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 628.26 KB."
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          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 584.66 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.79 KB."
          },
          {
            "title": "Lazy-load offscreen images",
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            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
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            "title": "Add integrity attributes for external dependencies",
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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            "id": "works-offline",
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            "detail": "Provide an offline fallback strategy for key pages and shell assets."
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            "id": "installable-manifest",
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          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
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            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
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            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 323.86 KB)."
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            "detail": "Provide an offline fallback strategy for key pages and shell assets."
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            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
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            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
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          {
            "title": "Strengthen static asset cache TTL",
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            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 323.86 KB)."
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        "urgency": "low",
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            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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        "urgency": "high",
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          "ratio": 0.02072347205440454,
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          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
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            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87848,
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            "wsg": {
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              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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          "title": "Remove unnecessary code",
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          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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          "unusedCssSavings": 87848
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            "title": "Lazy-load offscreen images",
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            "estimatedSavingsBytes": 63037,
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              "id": "8",
              "title": "Defer the loading of non-critical resources",
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              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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            "title": "Defer non-critical JavaScript",
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            "title": "Inline critical CSS and defer remainder",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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          },
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            "title": "Eliminate render-blocking resources",
            "area": "render-path",
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 489597,
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            "wsg": {
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              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
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            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348769,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
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          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "urgency": "high",
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        "transferBytes": 1225607,
        "notGreenCount": 3,
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        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 20,
        "urgency": "high",
        "transferBytes": 4239058,
        "estimatedRedundantBytes": 1001928,
        "redundancyRatio": 0.23635628481610774,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 914080,
            "displayValue": "Est savings of 893 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 87848,
            "displayValue": "Est savings of 86 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914080,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 87848,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
      },
      "modularization": {
        "score": 51,
        "urgency": "high",
        "totalTransferBytes": 4239058,
        "heavyRequestCount": 18,
        "heavyBytes": 3807590,
        "heavyRatio": 0.8982160659278547,
        "heavyRequests": [
          {
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-04/9%20-%20Sunset_0.jpg?h=0b307559&itok=0F8HvobN",
            "transferSize": 489597,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/styles/collection_square/public/2024-11/MexicanHatBackground_1.jpg?itok=oqBXJPCB",
            "transferSize": 400412,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "transferSize": 348769,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
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            "url": "https://www.energy.gov/sites/default/files/styles/collection_square/public/2024-11/10542648743_cfb6e97fce_k_0.jpg?itok=h7s4Dyju",
            "transferSize": 295324,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
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            "url": "https://www.energy.gov/themes/custom/energy_gov/img/Photo-FallBackImage-new.png",
            "transferSize": 288488,
            "resourceType": "image",
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            "domain": "www.energy.gov"
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            "transferSize": 245860,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "transferSize": 159206,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-MFMY1F6D3V&cx=c&gtm=4e63j1h2",
            "transferSize": 158760,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "transferSize": 157778,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e63j1h2",
            "transferSize": 148345,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L",
            "transferSize": 148093,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-WZQX9F4",
            "transferSize": 136229,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/styles/banner_tall/public/2024-04/9%20-%20Sunset_0.jpg?h=0b307559&itok=vtnXJaQe",
            "transferSize": 133785,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-PCSS9JS&gtm_auth=rQjC8QLyy7zCI51ldZjEbA&gtm_preview=env-3&gtm_cookies_win=x",
            "transferSize": 126153,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=UA-17192165-1&cx=c&gtm=4e63j1h2",
            "transferSize": 116002,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/js/js_zKKF6aMALZ8I4xNBLCovOiSmbp8brvk35JuqYftzvUo.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJxtjUEOwjAMBD9U4Qv_iUxipVYtJ7JNIL-nhwYuHHd3RlswUHCSwYN2HNzMN1KyOhMqygzODhXviQZppDDMB2v9w7RWhX7FInLTOE24Ir1DWI-11jYA3Sm-vBNa3gF73y4Wij07ym2pzkEvLueXkAWwcnwAqu9OzQ",
            "transferSize": 98297,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/css/css_O5fVRBFfj6fhEreA1DF4tUTO_NSTGRwryb9guQTJH-o.css?delta=1&language=en&theme=energy_gov&include=eJxNi1EKwzAMQy9kkiMVtxGpWZoE22nX24-Nhe1HSO-hrSli0tG5hCRcWiZUaL6X7W3--uS5nZHN4EZ4epH6mP_vpM7KWbnvNs2PhFH7WIvYjkQmjksSFi5Qj1LFyW5zHHFlA52Cy-Inw9HSKHgBn6ZEzg",
            "transferSize": 91957,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "image",
            "count": 7,
            "transferBytes": 2118001
          },
          {
            "resourceType": "script",
            "count": 10,
            "transferBytes": 1597632
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91957
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 10,
            "transferBytes": 2657024
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1150566
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 914080,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 489597,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-04/9%20-%20Sunset_0.jpg?h=0b307559&itok=0F8HvobN",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348769,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.02,
          "displayValue": "8.3 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 8.3 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 893 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,562 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,562 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 628 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 628 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 330 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 330 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
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            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 260,
            "displayValue": "Est savings of 260 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.80 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 557.20 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.61 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          },
          {
            "title": "Enable text compression",
            "urgency": "low",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 5.36 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 198311.32849162002
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 193.66 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 193.66 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 18,
        "urgency": "high",
        "transferBytes": 2879280,
        "css": {
          "unusedBytes": 87660,
          "ratio": 0.030445111277819455,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 914230,
          "duplicatedBytes": 0,
          "ratio": 0.3175203523102998,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0.125,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87660,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 914230,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 14,
        "urgency": "high",
        "transferBytes": 2879280,
        "estimatedDeferrableBytes": 1064927,
        "renderBlockingMs": 260,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 914230,
          "unusedCssSavings": 87660
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914230,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87660,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 260,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 471457,
            "url": "https://www.energy.gov/themes/custom/energy_gov/img/topic-hero.jpg",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348771,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.googletagmanager.com",
            "area": "script",
            "urgency": "medium",
            "estimatedSavingsBytes": 159207,
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224692,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149649,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
            }
          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20764,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
              "error": null
            }
          },
          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17241,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
              "error": null
            }
          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9498,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
              "error": null
            }
          },
          {
            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
              "error": null
            }
          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 37,
        "urgency": "high",
        "transferBytes": 2879280,
        "estimatedRedundantBytes": 1001890,
        "redundancyRatio": 0.34796546358811925,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 914230,
            "displayValue": "Est savings of 893 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 87660,
            "displayValue": "Est savings of 86 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914230,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 87660,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce DOM complexity and redundant markup",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "auditId": "dom-size",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
      },
      "modularization": {
        "score": 51,
        "urgency": "high",
        "totalTransferBytes": 2879280,
        "heavyRequestCount": 13,
        "heavyBytes": 2448649,
        "heavyRatio": 0.8504379567114001,
        "heavyRequests": [
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/img/topic-hero.jpg",
            "transferSize": 471457,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "transferSize": 348771,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/img/Photo-FallBackImage-new.png",
            "transferSize": 288520,
            "resourceType": "image",
            "mimeType": "image/png",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "transferSize": 159207,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-MFMY1F6D3V&cx=c&gtm=4e63i0",
            "transferSize": 158528,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "transferSize": 157552,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e63i0",
            "transferSize": 148106,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L",
            "transferSize": 148093,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-WZQX9F4",
            "transferSize": 136230,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-PCSS9JS&gtm_auth=rQjC8QLyy7zCI51ldZjEbA&gtm_preview=env-3&gtm_cookies_win=x",
            "transferSize": 126153,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=UA-17192165-1&cx=c&gtm=4e63i0",
            "transferSize": 115780,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/js/js_zKKF6aMALZ8I4xNBLCovOiSmbp8brvk35JuqYftzvUo.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJxtjUEOwjAMBD9U4Qv_iUxipVYtJ7JNIL-nhwYuHHd3RlswUHCSwYN2HNzMN1KyOhMqygzODhXviQZppDDMB2v9w7RWhX7FInLTOE24Ir1DWI-11jYA3Sm-vBNa3gF73y4Wij07ym2pzkEvLueXkAWwcnwAqu9OzQ",
            "transferSize": 98295,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/css/css_O5fVRBFfj6fhEreA1DF4tUTO_NSTGRwryb9guQTJH-o.css?delta=1&language=en&theme=energy_gov&include=eJxNi1EKwzAMQy9kkiMVtxGpWZoE22nX24-Nhe1HSO-hrSli0tG5hCRcWiZUaL6X7W3--uS5nZHN4EZ4epH6mP_vpM7KWbnvNs2PhFH7WIvYjkQmjksSFi5Qj1LFyW5zHHFlA52Cy-Inw9HSKHgBn6ZEzg",
            "transferSize": 91957,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "script",
            "count": 10,
            "transferBytes": 1596715
          },
          {
            "resourceType": "image",
            "count": 2,
            "transferBytes": 759977
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91957
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 5,
            "transferBytes": 1299000
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149649
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 914230,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 471457,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/img/topic-hero.jpg",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348771,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.04,
          "displayValue": "7.5 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 7.5 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 893 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 557 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 557 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 260 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 260 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 2,812 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 2,812 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0.5,
          "displayValue": "874 elements",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
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            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.04 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.93 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 454.36 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.00 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
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        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
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      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "score": 100,
        "urgency": "high",
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          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 617560.6865921783
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        "opportunities": [
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            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
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            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
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            "id": "uses-long-cache-ttl",
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            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 603.09 KB)."
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        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 603.09 KB)."
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        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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        ]
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      "deadCode": {
        "score": 6,
        "urgency": "high",
        "transferBytes": 7125996,
        "css": {
          "unusedBytes": 88064,
          "ratio": 0.012358132112339102,
          "auditId": "unused-css-rules"
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        "javascript": {
          "unusedBytes": 914365,
          "duplicatedBytes": 0,
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          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
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            "area": "css",
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            "estimatedSavingsBytes": 88064,
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              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
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              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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        "urgency": "high",
        "transferBytes": 7125996,
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          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 914365,
          "unusedCssSavings": 88064
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            "title": "Lazy-load offscreen images",
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            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
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              "categoryName": "Web Development",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914365,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88064,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 327,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075210,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
        "providerCount": 7,
        "requestCount": 14,
        "transferBytes": 1234964,
        "notGreenCount": 3,
        "unknownCount": 0,
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            "resourceType": "script",
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            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
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              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
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                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
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            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
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              "hostname": "scripts.clarity.ms",
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              "status": "not-green",
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            "sampleUrl": "https://www.google-analytics.com/analytics.js",
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              "green": true,
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          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
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            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
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        "wasteByAudit": [
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
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            "title": "Enable and verify text compression",
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            "auditId": "uses-text-compression",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
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          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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        "score": 50,
        "urgency": "high",
        "totalTransferBytes": 7125996,
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            "transferBytes": 1321175
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            "transferBytes": 1150987
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        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 914365,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 1075210,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "10.5 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 10.5 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 893 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,068 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,068 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 454 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 454 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 62 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 330 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 330 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 6,959 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 6,959 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 937,
            "displayValue": "Est savings of 940 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.78 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 912.57 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.01 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 937 ms."
          },
          {
            "title": "Minify JavaScript",
            "urgency": "low",
            "detail": "Use minified production JS output to reduce payload size. Estimated byte savings: 7.28 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 673725.8472067036
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 657.94 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 657.94 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 6,
        "urgency": "high",
        "transferBytes": 7731887,
        "css": {
          "unusedBytes": 88078,
          "ratio": 0.01139152706189317,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 934474,
          "duplicatedBytes": 0,
          "ratio": 0.12085975907304387,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
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        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88078,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 934474,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 13,
        "urgency": "high",
        "transferBytes": 7731887,
        "estimatedDeferrableBytes": 1022552,
        "renderBlockingMs": 937,
        "breakdown": {
          "offscreenImageSavings": 0,
          "unusedJavascriptSavings": 934474,
          "unusedCssSavings": 88078
        },
        "candidates": [
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 934474,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88078,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 937,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 1175941,
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/Nobel%20Prize%20Coin%20Banner%20Option%202.png?itok=L1x_rKcT",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075216,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224852,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149808,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
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          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20764,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
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                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17241,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
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                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
              "error": null
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          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9499,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
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          },
          {
            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
              "error": null
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          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 17,
        "urgency": "high",
        "transferBytes": 7731887,
        "estimatedRedundantBytes": 1022552,
        "redundancyRatio": 0.13225128613493706,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 934474,
            "displayValue": "Est savings of 913 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 88078,
            "displayValue": "Est savings of 86 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 934474,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 88078,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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        "onDemandCandidates": [
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 934474,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 1175941,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/Nobel%20Prize%20Coin%20Banner%20Option%202.png?itok=L1x_rKcT",
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              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 1075216,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
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          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "15.4 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 15.4 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.23,
          "displayValue": "7.8 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 7.8 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 913 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 913 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,821 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,821 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 940 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 940 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 7,551 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 7,551 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/topics/national-science-bowl",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/topics/national-science-bowl",
      "performanceScore": 0.35,
      "bestPracticesScore": 0.79,
      "transferBytes": 5372099,
      "co2Grams": 2.0579512058586,
      "greenWeb": {
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          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [
          {
            "hostname": "www.youtube.com",
            "resourceType": "script",
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      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 27,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 1452121.2000000002,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "estimatedSavingsBytes": 1052780.2000000002,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "estimatedSavingsBytes": 393852,
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.00 MB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 384.62 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 2590912.2,
        "totalEstimatedBlockingMs": 158,
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 1052780.2000000002,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,028 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 907458,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 886 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 393852,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 385 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87645,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 158,
            "displayValue": "Est savings of 160 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.00 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.19 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 384.62 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.59 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 284570.4420041897
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 277.90 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 277.90 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 11,
        "urgency": "high",
        "transferBytes": 5372099,
        "css": {
          "unusedBytes": 87645,
          "ratio": 0.016314851978714465,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 907458,
          "duplicatedBytes": 0,
          "ratio": 0.16892056531348362,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0.125,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87645,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 907458,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 7,
        "urgency": "high",
        "transferBytes": 5372099,
        "estimatedDeferrableBytes": 1058140,
        "renderBlockingMs": 158,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 907458,
          "unusedCssSavings": 87645
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 907458,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87645,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 158,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.youtube.com",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 702224,
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_ias.vflset/en_US/base.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 539360,
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2025-08/082825-nsb-background.jpg?itok=I-Lg2eXC",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348776,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 10,
        "requestCount": 27,
        "transferBytes": 2883982,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.youtube.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1619670,
            "sampleUrl": "https://www.youtube.com/s/embeds/c5dd6dc7/www-embed-player-pc-es6.vflset/www-embed-player-pc-es6.js",
            "greenCheck": {
              "hostname": "www.youtube.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-01-10T15:09:17",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.youtube.com",
              "error": null
            }
          },
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149644,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
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            "domain": "www.youtube.com",
            "count": 5,
            "transferBytes": 1621055
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149644
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 907458,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.youtube.com",
            "urgency": "high",
            "estimatedSavingsBytes": 702224,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_ias.vflset/en_US/base.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 539360,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2025-08/082825-nsb-background.jpg?itok=I-Lg2eXC",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "13.5 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 13.5 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.29,
          "displayValue": "7.3 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 7.3 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 886 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 886 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,028 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,028 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 385 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 385 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 160 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 160 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-rel-preconnect",
          "title": "Preconnect to required origins",
          "description": "Consider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. [Learn how to preconnect to required origins](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/).",
          "score": 0,
          "displayValue": "Est savings of 160 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Preconnect to required origins\n\n- Lighthouse audit: uses-rel-preconnect\n- Current value: Est savings of 160 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nConsider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. [Learn how to preconnect to required origins](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 5,246 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 5,246 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0.5,
          "displayValue": "826 elements",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 826 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/topics/earth-systems-modeling",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/topics/earth-systems-modeling",
      "performanceScore": 0.37,
      "bestPracticesScore": 0.79,
      "transferBytes": 5756585,
      "co2Grams": 2.205240641019,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [
          {
            "hostname": "www.youtube.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1619729,
            "sampleUrl": "https://www.youtube.com/s/embeds/c5dd6dc7/www-embed-player-pc-es6.vflset/www-embed-player-pc-es6.js",
            "greenCheck": {
              "hostname": "www.youtube.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-01-10T15:09:17",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.youtube.com",
              "error": null
            }
          },
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149644,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 30,
        "urgency": "medium",
        "totalEstimatedSavingsBytes": 1728816.3499999999,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "estimatedSavingsBytes": 1457587.3499999999,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "estimatedSavingsBytes": 265740,
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.39 MB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 259.51 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 3274794.3499999996,
        "totalEstimatedBlockingMs": 150,
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 1457587.3499999999,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,423 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 909669,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 888 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 483519,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 472 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 265740,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 260 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87575,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 65215,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 64 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 150,
            "displayValue": "Est savings of 150 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.39 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 888.35 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 472.19 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 259.51 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.52 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 63.69 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 315350.45097765344
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 307.96 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 307.96 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 5756585,
        "css": {
          "unusedBytes": 87575,
          "ratio": 0.015213012576032492,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 909669,
          "duplicatedBytes": 0,
          "ratio": 0.15802233442223124,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87575,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 909669,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 7,
        "urgency": "high",
        "transferBytes": 5756585,
        "estimatedDeferrableBytes": 1062459,
        "renderBlockingMs": 150,
        "breakdown": {
          "offscreenImageSavings": 65215,
          "unusedJavascriptSavings": 909669,
          "unusedCssSavings": 87575
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 65215,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 909669,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87575,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 150,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 731412,
            "url": "https://www.energy.gov/sites/default/files/styles/collection_square/public/2024-07/doe-explains-climate-earth-systems-models_0.png?itok=AcfkQ434",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.youtube.com",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 702233,
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_ias.vflset/en_US/base.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348790,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 10,
        "requestCount": 27,
        "transferBytes": 2883594,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.youtube.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1619729,
            "sampleUrl": "https://www.youtube.com/s/embeds/c5dd6dc7/www-embed-player-pc-es6.vflset/www-embed-player-pc-es6.js",
            "greenCheck": {
              "hostname": "www.youtube.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-01-10T15:09:17",
              "supportingDocuments": [
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                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.youtube.com",
              "error": null
            }
          },
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149644,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
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                  "id": 108,
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
            }
          },
          {
            "hostname": "www.google.com",
            "resourceType": "script",
            "requestCount": 2,
            "transferBytes": 23635,
            "sampleUrl": "https://www.google.com/js/th/I0XrtAbgi1wU_MUggviOBhSksauGCnRGjJoqgRcKz9c.js",
            "greenCheck": {
              "hostname": "www.google.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-17T09:47:17",
              "supportingDocuments": [
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                  "id": 108,
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            "estimatedSavingsBytes": 731412,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/collection_square/public/2024-07/doe-explains-climate-earth-systems-models_0.png?itok=AcfkQ434",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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          {
            "title": "Modularize heavy script asset from www.youtube.com",
            "urgency": "high",
            "estimatedSavingsBytes": 702233,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_ias.vflset/en_US/base.js",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
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        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
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      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "11.7 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 11.7 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.31,
          "displayValue": "7.1 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
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          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 7.1 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 888 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 888 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,423 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,423 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 260 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 260 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 150 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 150 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 64 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
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          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 64 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 5,622 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 5,622 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
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      "bestPracticesScore": 0.75,
      "transferBytes": 3712843,
      "co2Grams": 1.4223210944202,
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        "urgency": "low",
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          {
            "title": "No major form validation risks detected",
            "urgency": "low",
            "detail": "Continue testing form flows to ensure error handling remains clear across templates."
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        ]
      },
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        "checks": {
          "hasTitle": true,
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            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
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            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
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            "title": "Add SRI to external scripts",
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            "detail": "4 external script tag(s) are missing integrity attributes."
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          },
          {
            "title": "Enable Brotli/gzip for text assets",
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          "title": "Use the most efficient solution for your service",
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            "id": "modern-image-formats",
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            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
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            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
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            "urgency": "high",
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            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
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            "displayValue": "Est savings of 522 KiB",
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            "sourceAuditId": "uses-optimized-images"
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            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
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            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
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            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
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            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
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            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
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            "displayValue": "Est savings of 62 KiB",
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            "sourceAuditId": "offscreen-images"
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          },
          {
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            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 327.98 KB."
          },
          {
            "title": "Remove unused CSS",
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            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.55 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
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      },
      "dependencyMaintenance": {
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
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        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
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            "title": "Add integrity attributes for external dependencies",
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            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
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          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "score": 100,
        "urgency": "high",
        "checks": {
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          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 280036.39860335184
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        "opportunities": [
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            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
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            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
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            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
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            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
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            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 273.47 KB)."
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        ],
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            "title": "Add service worker support",
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
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            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
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        "urgency": "high",
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          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
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        "recommendations": [
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            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
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            "estimatedSavingsBytes": 87608,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
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              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 913752,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 11,
        "urgency": "high",
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        "estimatedDeferrableBytes": 1064397,
        "renderBlockingMs": 221,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 913752,
          "unusedCssSavings": 87608
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 913752,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87608,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 221,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
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            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348831,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
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              "categoryId": "3",
              "categoryName": "Web Development",
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              "title": "Modularize bandwidth-heavy components",
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          "categoryId": "3",
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          "id": "3",
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      "findings": [
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          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.08,
          "displayValue": "6.6 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
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          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
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          "displayValue": "Est savings of 892 KiB",
          "impact": "high",
          "wsg": {
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            "categoryName": "Web Development",
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            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 892 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
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          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
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          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,250 KiB",
          "impact": "high",
          "wsg": {
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            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
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          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,250 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 522 KiB",
          "impact": "high",
          "wsg": {
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            "categoryName": "User Experience Design",
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            "title": "Optimize media to reduce resource use",
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            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 522 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 220 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Use the most efficient solution for your service",
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            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
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          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 220 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Modularize bandwidth-heavy components",
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          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 3,626 KiB",
          "impact": "medium",
          "wsg": {
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            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 3,626 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
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          "ogDescription": "2025 DOE 403 Orders",
          "ogType": "article",
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          "invalidLdJsonCount": 0
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        "recommendations": [
          {
            "title": "Metadata structure looks healthy",
            "urgency": "low",
            "detail": "Core machine-readable metadata is present and no structural issues were detected."
          }
        ]
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      "layoutAdaptation": {
        "score": 30,
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        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 27,
          "tabletSmallTapTargets": 29,
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          "scanErrors": 0
        },
        "perDevice": [
          {
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          },
          {
            "device": "tablet",
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          }
        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "high",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 27 small targets on mobile and 29 on tablet."
          }
        ]
      },
      "securityLight": {
        "score": 37,
        "urgency": "medium",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
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          "externalScriptsWithoutIntegrity": 4,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
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            "cache-tags": "HIT",
            "content-language": "en",
            "content-security-policy": "",
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            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "d_WI6_BLgTIW6OSf4DYs_nwP1ESnRIielVwVZcMcGgGqAUn8wF8kqA==",
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            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
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          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
          }
        ]
      },
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        "origin": "https://www.energy.gov",
        "checks": [
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            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
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            "status": 200,
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          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
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          {
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            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
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          {
            "path": "/manifest.webmanifest",
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          {
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        ],
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          {
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          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
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          }
        ],
        "recommendations": [
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            "title": "Use modern image compression formats",
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          },
          {
            "title": "Enable Brotli/gzip for text assets",
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            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
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        "urgency": "high",
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            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 893 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 87 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
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            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
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            "displayValue": "Est savings of 70 KiB",
            "urgency": "medium",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
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            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
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            "sourceAuditId": "render-blocking-resources"
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        ],
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            "title": "Remove unused JavaScript",
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          },
          {
            "title": "Remove unused CSS",
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            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.58 KB."
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          {
            "title": "Right-size images for viewport",
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          },
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            "title": "Serve images in next-gen formats",
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            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 69.55 KB."
          },
          {
            "title": "Enable text compression",
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          },
          {
            "title": "Eliminate render-blocking resources",
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        ]
      },
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      "offlineSupport": {
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
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          "worksOffline": false,
          "hasInstallableManifest": false,
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          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 125312.3581005586
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 122.38 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 122.38 KB)."
          }
        ]
      },
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "urgency": "low",
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            "title": "No obvious outdated runtime version disclosed",
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            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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        ]
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          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
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            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
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            "estimatedSavingsBytes": 88654,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
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              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
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            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
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        "urgency": "high",
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        "estimatedDeferrableBytes": 1002758,
        "renderBlockingMs": 223,
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          "offscreenImageSavings": 0,
          "unusedJavascriptSavings": 914104,
          "unusedCssSavings": 88654
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        "candidates": [
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914104,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88654,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 223,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348870,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.googletagmanager.com",
            "area": "script",
            "urgency": "medium",
            "estimatedSavingsBytes": 159204,
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0h1",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224858,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149808,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
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          "title": "Largest Contentful Paint",
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          "displayValue": "5.3 s",
          "impact": "high",
          "wsg": {
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            "title": "Set goals based on performance and energy impact",
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            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
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          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.3 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 893 KiB",
          "impact": "high",
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            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 87 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 87 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 70 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 70 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
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          {
            "device": "mobile",
            "viewportWidth": 390,
            "viewportHeight": 844,
            "contentWidth": 390,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 46,
            "oversizedMedia": 0
          },
          {
            "device": "tablet",
            "viewportWidth": 820,
            "viewportHeight": 1180,
            "contentWidth": 820,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 54,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "high",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 46 small targets on mobile and 54 on tablet."
          }
        ]
      },
      "securityLight": {
        "score": 39,
        "urgency": "medium",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 15,
          "externalScriptsWithoutIntegrity": 15,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "age": "17",
            "cache-control": "max-age=2764800, public",
            "cache-tags": "HIT",
            "content-language": "en",
            "content-security-policy": "",
            "date": "Sun, 22 Mar 2026 00:42:28 GMT",
            "etag": "\"1774130802:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
            "last-modified": "Sat, 21 Mar 2026 22:06:41 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"7daf15de896d1cb46c9b2ff2ac4f05f8\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"-1385935299\"",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_1_sn_812A7C14B6E7E40B415A29E4E23428BD_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "6LMKnTREn6uos4Mvp29SIclldoM2YehDBShkDiknwsEUjYGzAlz-Cw==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "1077489 1563525",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "15 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 33,
        "urgency": "medium",
        "totalEstimatedSavingsBytes": 2040819.7,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "estimatedSavingsBytes": 1409521.7,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "estimatedSavingsBytes": 625809,
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.34 MB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 611.14 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 3179792.7,
        "totalEstimatedBlockingMs": 300,
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 1409521.7,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,376 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 907724,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 886 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 625809,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 611 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87561,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 300,
            "displayValue": "Est savings of 300 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.34 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.45 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 611.14 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.51 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 10,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 15,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "15 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 379210.8994762569
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 370.32 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 370.32 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 10,
        "urgency": "high",
        "transferBytes": 6210700,
        "css": {
          "unusedBytes": 87561,
          "ratio": 0.014098410807155393,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 907724,
          "duplicatedBytes": 0,
          "ratio": 0.14615486177081488,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0.125,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87561,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 907724,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 6210700,
        "estimatedDeferrableBytes": 1058322,
        "renderBlockingMs": 300,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 907724,
          "unusedCssSavings": 87561
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 907724,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87561,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 300,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 876915,
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/AdobeStock_230255423_0.jpeg?itok=k5MoybxH",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.youtube.com",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 702236,
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_ias.vflset/en_US/base.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 10,
        "requestCount": 49,
        "transferBytes": 2883656,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.youtube.com",
            "resourceType": "script",
            "requestCount": 20,
            "transferBytes": 1619741,
            "sampleUrl": "https://www.youtube.com/s/embeds/c5dd6dc7/www-embed-player-pc-es6.vflset/www-embed-player-pc-es6.js",
            "greenCheck": {
              "hostname": "www.youtube.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-01-10T15:09:17",
              "supportingDocuments": [
                {
                  "id": 108,
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            "transferSize": 126153,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.youtube.com/s/embeds/c5dd6dc7/www-embed-player.vflset/www-embed-player.js",
            "transferSize": 119698,
            "resourceType": "script",
            "mimeType": "text/javascript",
            "domain": "www.youtube.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=UA-17192165-1&cx=c&gtm=4e63i0",
            "transferSize": 115780,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/js/js_zKKF6aMALZ8I4xNBLCovOiSmbp8brvk35JuqYftzvUo.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJxtjUEOwjAMBD9U4Qv_iUxipVYtJ7JNIL-nhwYuHHd3RlswUHCSwYN2HNzMN1KyOhMqygzODhXviQZppDDMB2v9w7RWhX7FInLTOE24Ir1DWI-11jYA3Sm-vBNa3gF73y4Wij07ym2pzkEvLueXkAWwcnwAqu9OzQ",
            "transferSize": 98298,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/css/css_O5fVRBFfj6fhEreA1DF4tUTO_NSTGRwryb9guQTJH-o.css?delta=1&language=en&theme=energy_gov&include=eJxNi1EKwzAMQy9kkiMVtxGpWZoE22nX24-Nhe1HSO-hrSli0tG5hCRcWiZUaL6X7W3--uS5nZHN4EZ4epH6mP_vpM7KWbnvNs2PhFH7WIvYjkQmjksSFi5Qj1LFyW5zHHFlA52Cy-Inw9HSKHgBn6ZEzg",
            "transferSize": 91955,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.youtube.com/s/player/1ebf2aa6/www-player.css",
            "transferSize": 57918,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.youtube.com"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "script",
            "count": 14,
            "transferBytes": 3159915
          },
          {
            "resourceType": "image",
            "count": 4,
            "transferBytes": 1864631
          },
          {
            "resourceType": "stylesheet",
            "count": 2,
            "transferBytes": 149873
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 7,
            "transferBytes": 2403665
          },
          {
            "domain": "www.youtube.com",
            "count": 5,
            "transferBytes": 1621114
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149640
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 907724,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 876915,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/AdobeStock_230255423_0.jpeg?itok=k5MoybxH",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.youtube.com",
            "urgency": "high",
            "estimatedSavingsBytes": 702236,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_ias.vflset/en_US/base.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "19.5 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 19.5 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.22,
          "displayValue": "8.0 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 8.0 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 886 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 886 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,376 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,376 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 611 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 611 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 300 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 300 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 6,065 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 6,065 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0.5,
          "displayValue": "874 elements",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 874 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/topics/puerto-rico-grid-resilience-and-modernization",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/topics/puerto-rico-grid-resilience-and-modernization",
      "performanceScore": 0.49,
      "bestPracticesScore": 0.75,
      "transferBytes": 3588899,
      "co2Grams": 1.3748404533786,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149648,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
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            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 261.66 KB)."
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        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 261.66 KB)."
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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      "deadCode": {
        "score": 12,
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        "html": {
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          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
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        "recommendations": [
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            "area": "css",
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            "estimatedSavingsBytes": 87612,
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              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
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            }
          },
          {
            "area": "javascript",
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            "strategy": "Load below-the-fold images only when they approach the viewport.",
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              "categoryName": "Web Development",
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              "title": "Defer the loading of non-critical resources",
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          },
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            "title": "Defer non-critical JavaScript",
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              "categoryId": "3",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
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            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
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            "estimatedSavingsBytes": 468973,
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348770,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
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              "title": "Defer the loading of non-critical resources",
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            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "urgency": "high",
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        "transferBytes": 1224705,
        "notGreenCount": 3,
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            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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            "transferBytes": 26694,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
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            "sampleUrl": "https://www.google-analytics.com/analytics.js",
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            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
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            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
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        "wasteByAudit": [
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            "title": "Reduce unused JavaScript",
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            "auditId": "unused-css-rules",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
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            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
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              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
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          {
            "title": "Modularize heavy script asset from www.energy.gov",
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            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
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          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
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      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.06,
          "displayValue": "7.0 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 7.0 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 891 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 891 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,098 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,098 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 359 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 359 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 220 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 220 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 3,505 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 3,505 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/topics/tribal-energy-access",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/topics/tribal-energy-access",
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      "bestPracticesScore": 0.79,
      "transferBytes": 6430604,
      "co2Grams": 2.4634447831656003,
      "greenWeb": {
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          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [
          {
            "hostname": "www.youtube.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1619757,
            "sampleUrl": "https://www.youtube.com/s/embeds/c5dd6dc7/www-embed-player-pc-es6.vflset/www-embed-player-pc-es6.js",
            "greenCheck": {
              "hostname": "www.youtube.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "partner": null,
              "modified": "2026-01-10T15:09:17",
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                  "title": "Alphabet 2024 CDP Climate Change Response",
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                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
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                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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            "transferBytes": 1149639,
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            "greenCheck": {
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            "estimatedSavingsBytes": 2266334,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 2.16 MB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 3672422,
        "totalEstimatedBlockingMs": 150,
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 2266334,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 2,213 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 907620,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 886 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 340238,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 332 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87526,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 85 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 65215,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 64 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 150,
            "displayValue": "Est savings of 150 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 2.16 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.35 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 332.26 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.47 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 63.69 KB."
          },
          {
            "title": "Enable text compression",
            "urgency": "low",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 5.36 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
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          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 382674.5193086591
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 373.71 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 373.71 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 7,
        "urgency": "high",
        "transferBytes": 6430604,
        "css": {
          "unusedBytes": 87526,
          "ratio": 0.013610852106582834,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 907620,
          "duplicatedBytes": 0,
          "ratio": 0.14114070777799412,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87526,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 907620,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 6,
        "urgency": "high",
        "transferBytes": 6430604,
        "estimatedDeferrableBytes": 1060361,
        "renderBlockingMs": 150,
        "breakdown": {
          "offscreenImageSavings": 65215,
          "unusedJavascriptSavings": 907620,
          "unusedCssSavings": 87526
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 65215,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 907620,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87526,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 150,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 857929,
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2025-06/DOE-IE-page-image.png?itok=n7uluQ9o",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.youtube.com",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 702239,
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_ias.vflset/en_US/base.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 10,
        "requestCount": 27,
        "transferBytes": 2883676,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.youtube.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1619757,
            "sampleUrl": "https://www.youtube.com/s/embeds/c5dd6dc7/www-embed-player-pc-es6.vflset/www-embed-player-pc-es6.js",
            "greenCheck": {
              "hostname": "www.youtube.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-01-10T15:09:17",
              "supportingDocuments": [
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                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.youtube.com",
              "error": null
            }
          },
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149639,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
            }
          },
          {
            "hostname": "www.google.com",
            "resourceType": "script",
            "requestCount": 2,
            "transferBytes": 23635,
            "sampleUrl": "https://www.google.com/js/th/I0XrtAbgi1wU_MUggviOBhSksauGCnRGjJoqgRcKz9c.js",
            "greenCheck": {
              "hostname": "www.google.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-17T09:47:17",
              "supportingDocuments": [
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                  "id": 108,
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
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                  "id": 1365,
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google.com",
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            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20778,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
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                  "id": 108,
                  "title": "Sustainability at Google",
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          "displayValue": "16.9 s",
          "impact": "high",
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          "impact": "high",
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            "title": "Use dependencies appropriately and ensure maintenance",
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          "displayValue": "Est savings of 85 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Remove unnecessary or redundant information",
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          "displayValue": "Est savings of 2,213 KiB",
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/static.doubleclick.net",
              "error": null
            }
          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 10 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 29,
        "urgency": "high",
        "transferBytes": 4906161,
        "estimatedRedundantBytes": 995681,
        "redundancyRatio": 0.20294503176720047,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 908003,
            "displayValue": "Est savings of 887 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 87678,
            "displayValue": "Est savings of 86 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 908003,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 87678,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce DOM complexity and redundant markup",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "auditId": "dom-size",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
      },
      "modularization": {
        "score": 47,
        "urgency": "high",
        "totalTransferBytes": 4906161,
        "heavyRequestCount": 19,
        "heavyBytes": 4015925,
        "heavyRatio": 0.8185473326293206,
        "heavyRequests": [
          {
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_ias.vflset/en_US/base.js",
            "transferSize": 702245,
            "resourceType": "script",
            "mimeType": "text/javascript",
            "domain": "www.youtube.com"
          },
          {
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_embed_es6.vflset/en_US/base.js",
            "transferSize": 440111,
            "resourceType": "script",
            "mimeType": "text/javascript",
            "domain": "www.youtube.com"
          },
          {
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "transferSize": 348780,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.youtube.com/s/embeds/c5dd6dc7/www-embed-player-pc-es6.vflset/www-embed-player-pc-es6.js",
            "transferSize": 301175,
            "resourceType": "script",
            "mimeType": "text/javascript",
            "domain": "www.youtube.com"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/img/Photo-FallBackImage-new.png",
            "transferSize": 288493,
            "resourceType": "image",
            "mimeType": "image/png",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2021-05/iStock-1251697385_0.jpg?itok=FlGq28bK",
            "transferSize": 265383,
            "resourceType": "image",
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            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "transferSize": 159207,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-MFMY1F6D3V&cx=c&gtm=4e63i0",
            "transferSize": 158528,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "transferSize": 157547,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/styles/banner_square/public/2021-05/iStock-1251697385_0.jpg?itok=U-3qPMPR",
            "transferSize": 151950,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
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          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L",
            "transferSize": 148345,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e63i0",
            "transferSize": 148101,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-WZQX9F4",
            "transferSize": 136230,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-PCSS9JS&gtm_auth=rQjC8QLyy7zCI51ldZjEbA&gtm_preview=env-3&gtm_cookies_win=x",
            "transferSize": 126153,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.youtube.com/s/embeds/c5dd6dc7/www-embed-player.vflset/www-embed-player.js",
            "transferSize": 119707,
            "resourceType": "script",
            "mimeType": "text/javascript",
            "domain": "www.youtube.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=UA-17192165-1&cx=c&gtm=4e63i0",
            "transferSize": 115780,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/js/js_zKKF6aMALZ8I4xNBLCovOiSmbp8brvk35JuqYftzvUo.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJxtjUEOwjAMBD9U4Qv_iUxipVYtJ7JNIL-nhwYuHHd3RlswUHCSwYN2HNzMN1KyOhMqygzODhXviQZppDDMB2v9w7RWhX7FInLTOE24Ir1DWI-11jYA3Sm-vBNa3gF73y4Wij07ym2pzkEvLueXkAWwcnwAqu9OzQ",
            "transferSize": 98305,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/css/css_O5fVRBFfj6fhEreA1DF4tUTO_NSTGRwryb9guQTJH-o.css?delta=1&language=en&theme=energy_gov&include=eJxNi1EOgzAMQy_U0SNVgXolWmirpIVx-zEE2n4s28-eisJH7ZVkiExSkkOGpj1MX_Ln7z6V1ZMZmjm8m3B-3f8rukpKSanOdpNfM_Rc-yhsM6Izbtg4IpBAm-fMzdluDYsfyeDWg5WAZUQMT4ZEr7BasvGKxwmPCTbzpw5LiV3wAf6mUpE",
            "transferSize": 91956,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.youtube.com/s/player/1ebf2aa6/www-player.css",
            "transferSize": 57929,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.youtube.com"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "script",
            "count": 14,
            "transferBytes": 3160214
          },
          {
            "resourceType": "image",
            "count": 3,
            "transferBytes": 705826
          },
          {
            "resourceType": "stylesheet",
            "count": 2,
            "transferBytes": 149885
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.youtube.com",
            "count": 5,
            "transferBytes": 1621167
          },
          {
            "domain": "www.energy.gov",
            "count": 6,
            "transferBytes": 1244867
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149891
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 65215,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 908003,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.youtube.com",
            "urgency": "high",
            "estimatedSavingsBytes": 702245,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_ias.vflset/en_US/base.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348780,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "10.9 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 10.9 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.31,
          "displayValue": "7.1 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 7.1 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 887 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 887 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 683 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 683 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 199 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
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            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 15156,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 15 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "unminified-css",
            "title": "Minify CSS",
            "detail": "Use minified production CSS output to reduce bytes in transit.",
            "estimatedSavingsBytes": 5233,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-css"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 229,
            "displayValue": "Est savings of 230 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
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        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
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            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 2.06 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 941.00 KB."
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          {
            "title": "Right-size images for viewport",
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            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 682.87 KB."
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          {
            "title": "Compress oversized image assets",
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            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 420.80 KB."
          },
          {
            "title": "Enable text compression",
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            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 200.32 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "high",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 130.07 KB."
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          "title": "Use dependencies appropriately and ensure maintenance",
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        "urgency": "medium",
        "vulnerableLibraryCount": 0,
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        "recommendations": [
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            "title": "Add integrity attributes for external dependencies",
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            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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            "id": "works-offline",
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            "detail": "Provide an offline fallback strategy for key pages and shell assets."
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          {
            "id": "installable-manifest",
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          {
            "id": "offline-start-url",
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            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
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            "id": "uses-long-cache-ttl",
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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            "title": "Ensure critical routes work offline",
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            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
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            "title": "Support offline start URL behavior",
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            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
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            "title": "Strengthen static asset cache TTL",
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            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 647.75 KB)."
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        "urgency": "low",
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            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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            "estimatedSavingsBytes": 133196,
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              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
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        "renderBlockingMs": 229,
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          "unusedCssSavings": 133196
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            "title": "Lazy-load offscreen images",
            "area": "image",
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            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
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              "categoryName": "Web Development",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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            "title": "Defer non-critical JavaScript",
            "area": "javascript",
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            "strategy": "Split bundles and load feature code on interaction or route transition.",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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          },
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            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 133196,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
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            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 229,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 861702,
            "url": "https://www.energy.gov/sites/default/files/styles/collection_square/public/2024-08/USEER2024_1.png?itok=cl1x2Qzu",
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            "wsg": {
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              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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          },
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            "title": "Evaluate deferred loading for heavy script from www.youtube.com",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 702249,
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_ias.vflset/en_US/base.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "urgency": "high",
        "providerCount": 12,
        "requestCount": 36,
        "transferBytes": 3073015,
        "notGreenCount": 5,
        "unknownCount": 0,
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            "transferBytes": 1619830,
            "sampleUrl": "https://www.youtube.com/s/embeds/c5dd6dc7/www-embed-player-pc-es6.vflset/www-embed-player-pc-es6.js",
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              "hostname": "www.youtube.com",
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              "status": "green",
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            "sampleUrl": "https://www1.eere.energy.gov/apps/js/jquery/3.2.0/jquery.min.js",
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          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 7.9 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 941 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 941 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 130 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 130 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 2,114 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 2,114 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 421 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 421 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 230 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 230 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0,
          "displayValue": "848 elements",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 848 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.67,
          "displayValue": "4.8 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
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          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 4.8 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 200 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 200 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 7,283 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 7,283 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
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          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "13.9 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 13.9 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.31,
          "displayValue": "7.1 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 7.1 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 889 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 889 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 85 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 85 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
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          "displayValue": "Est savings of 557 KiB",
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          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 46,
        "urgency": "medium",
        "totalEstimatedSavingsBytes": 2057577.4500000002,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "estimatedSavingsBytes": 1795232.4500000002,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "estimatedSavingsBytes": 256856,
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.71 MB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 250.84 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
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        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 4436862.45,
        "totalEstimatedBlockingMs": 192,
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 1795232.4500000002,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,753 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 1314848,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,284 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 913804,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 892 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 256856,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 251 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87596,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 192,
            "displayValue": "Est savings of 190 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
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        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.71 MB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 1.25 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.39 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 250.84 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.54 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
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        ]
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      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
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      "offlineSupport": {
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          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "score": 100,
        "urgency": "high",
        "checks": {
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          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 356067.3072625697
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        "opportunities": [
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            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 347.72 KB)."
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        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 347.72 KB)."
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        ]
      },
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          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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        ]
      },
      "deadCode": {
        "score": 10,
        "urgency": "high",
        "transferBytes": 4486415,
        "css": {
          "unusedBytes": 87596,
          "ratio": 0.019524720740279264,
          "auditId": "unused-css-rules"
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        "javascript": {
          "unusedBytes": 913804,
          "duplicatedBytes": 0,
          "ratio": 0.20368245024145112,
          "auditIds": [
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            "duplicated-javascript"
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        },
        "html": {
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          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87596,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 913804,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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      },
      "nonCriticalResources": {
        "score": 9,
        "urgency": "high",
        "transferBytes": 4486415,
        "estimatedDeferrableBytes": 1064437,
        "renderBlockingMs": 192,
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          "offscreenImageSavings": 63037,
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          "unusedCssSavings": 87596
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        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 913804,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87596,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 192,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 828513,
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2024-09/Two%20Heirloom%20technicians%20inspect%20a%20row%20of%20contactor%20towers%20in%20Heirloom%E2%80%99s%20commercial%20Direct%20Air%20Capture%20facility_1.jpg?itok=ycfN8ZyX",
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348760,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
        "providerCount": 6,
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        "transferBytes": 1224941,
        "notGreenCount": 3,
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              "modified": "2026-03-06T00:36:18",
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          "title": "Largest Contentful Paint",
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          "score": 0.04,
          "displayValue": "7.5 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 7.5 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 892 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 892 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,753 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,753 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 190 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 190 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 251 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
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            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 422418.6,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 413 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88816,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 87 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 402,
            "displayValue": "Est savings of 400 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.43 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 412.52 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.73 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 402 ms."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 684592.9145251394
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 668.55 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 668.55 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 6,
        "urgency": "high",
        "transferBytes": 7834373,
        "css": {
          "unusedBytes": 88816,
          "ratio": 0.011336708119462783,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 913845,
          "duplicatedBytes": 0,
          "ratio": 0.11664558223102219,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88816,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 913845,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 7834373,
        "estimatedDeferrableBytes": 1065698,
        "renderBlockingMs": 402,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 913845,
          "unusedCssSavings": 88816
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 913845,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88816,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 402,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 5178034,
            "url": "https://www.energy.gov/themes/custom/energy_gov/img/topics-glossary-hero.jpeg",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348760,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.googletagmanager.com",
            "area": "script",
            "urgency": "medium",
            "estimatedSavingsBytes": 159218,
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224788,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149731,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
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          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20778,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
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                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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          },
          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17241,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "modified": "2025-11-25T09:13:07",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "id": 1366,
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
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          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9498,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
              "error": null
            }
          },
          {
            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
              "error": null
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          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 15,
        "urgency": "high",
        "transferBytes": 7834373,
        "estimatedRedundantBytes": 1002661,
        "redundancyRatio": 0.12798229035048497,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 913845,
            "displayValue": "Est savings of 892 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 88816,
            "displayValue": "Est savings of 87 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 913845,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 88816,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
      },
      "modularization": {
        "score": 50,
        "urgency": "high",
        "totalTransferBytes": 7834373,
        "heavyRequestCount": 13,
        "heavyBytes": 7408153,
        "heavyRatio": 0.9455961568334824,
        "heavyRequests": [
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/img/topics-glossary-hero.jpeg",
            "transferSize": 5178034,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/2024-11/electric_current.png",
            "transferSize": 541370,
            "resourceType": "image",
            "mimeType": "image/png",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "transferSize": 348760,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "transferSize": 159218,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-MFMY1F6D3V&cx=c&gtm=4e63i0",
            "transferSize": 158539,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "transferSize": 157557,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e63i0",
            "transferSize": 148117,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L",
            "transferSize": 148104,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-WZQX9F4",
            "transferSize": 136240,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-PCSS9JS&gtm_auth=rQjC8QLyy7zCI51ldZjEbA&gtm_preview=env-3&gtm_cookies_win=x",
            "transferSize": 126165,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=UA-17192165-1&cx=c&gtm=4e63i0",
            "transferSize": 115791,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/js/js_zKKF6aMALZ8I4xNBLCovOiSmbp8brvk35JuqYftzvUo.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJxtjk0OwkAIhS_UyMb7NDglU1ICE8Dq3N7GdOzGJY_v_SyYKNjJ4UEr7mweEyl57TMqSk8uARXvM-2kOadj2VjrH8asCl3CIIppHk44T3qnsG7jW20HjKD88UHoZQVsbShp7VsgFoHepzMCFn82lNtIDE568XJMEPIEVs4PNdVYFw",
            "transferSize": 98275,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/css/css_O5fVRBFfj6fhEreA1DF4tUTO_NSTGRwryb9guQTJH-o.css?delta=1&language=en&theme=energy_gov&include=eJxNi20KgDAMQy9U7JGkujCKdZO1ft1eFAX_hLw8MtYGTm1dxLqkYjUTClo--_E2v_7tuW4s7ggnHGFapu__IrkGdk3oxdCCtWiQnx6YeRAHbYrd-clurmk1XNoANJo",
            "transferSize": 91983,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "image",
            "count": 2,
            "transferBytes": 5719404
          },
          {
            "resourceType": "script",
            "count": 10,
            "transferBytes": 1596766
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91983
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 5,
            "transferBytes": 6258422
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149731
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 913845,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 5178034,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/img/topics-glossary-hero.jpeg",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348760,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "33.4 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 33.4 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.37,
          "displayValue": "6.6 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 6.6 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 892 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 892 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 87 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 87 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 413 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 413 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 400 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 400 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 7,651 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 7,651 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 126184.0025139664
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 123.23 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 123.23 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 21,
        "urgency": "high",
        "transferBytes": 2142755,
        "css": {
          "unusedBytes": 87979,
          "ratio": 0.041058823803934656,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 913750,
          "duplicatedBytes": 0,
          "ratio": 0.42643699349669,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87979,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 913750,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 16,
        "urgency": "high",
        "transferBytes": 2142755,
        "estimatedDeferrableBytes": 1066944,
        "renderBlockingMs": 167,
        "breakdown": {
          "offscreenImageSavings": 65215,
          "unusedJavascriptSavings": 913750,
          "unusedCssSavings": 87979
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 65215,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 913750,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87979,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 167,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348762,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.googletagmanager.com",
            "area": "script",
            "urgency": "medium",
            "estimatedSavingsBytes": 159215,
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0h1",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224790,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149731,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26694,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
            }
          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20778,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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            }
          },
          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17241,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
              "error": null
            }
          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9499,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
              "error": null
            }
          },
          {
            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
              "error": null
            }
          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 33,
        "urgency": "high",
        "transferBytes": 2142755,
        "estimatedRedundantBytes": 1001729,
        "redundancyRatio": 0.46749581730062467,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 913750,
            "displayValue": "Est savings of 892 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 87979,
            "displayValue": "Est savings of 86 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 913750,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 87979,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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      "modularization": {
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        "urgency": "high",
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        "heavyRequestCount": 11,
        "heavyBytes": 1688746,
        "heavyRatio": 0.7881190336739384,
        "heavyRequests": [
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            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
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          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0h1",
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            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
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            "url": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
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            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e63i0",
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            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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            "title": "Use dependencies appropriately and ensure maintenance",
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          "impact": "high",
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            "title": "Remove unnecessary or redundant information",
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          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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            "domain": "www.energy.gov"
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            "transferBytes": 5300681
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            "count": 9,
            "transferBytes": 1299461
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        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 258121,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 960216,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 1075235,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "14.3 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 14.3 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.15,
          "displayValue": "8.8 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 8.8 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 938 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 938 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,199 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,199 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 520 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 520 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 252 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 252 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 900 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 900 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "server-response-time",
          "title": "Reduce initial server response time",
          "description": "Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).",
          "score": 0,
          "displayValue": "Root document took 1,250 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "4",
            "categoryName": "Hosting, Infrastructure, and Systems",
            "id": "11",
            "title": "Ensure infrastructure fits project requirements",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements",
            "subheading": "Maintain the infrastructure you require rather than over-provisioning. Autoscale to meet demand and preserve hardware resources."
          },
          "issueTemplate": "## Improve Reduce initial server response time\n\n- Lighthouse audit: server-response-time\n- Current value: Root document took 1,250 ms\n- WSG guideline: 11 Ensure infrastructure fits project requirements\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements\n\n### Why this matters\nKeep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 7,433 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 7,433 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0.5,
          "displayValue": "860 elements",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 860 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
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            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 910483,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 889 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 564266,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 551 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 372520,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 364 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 350550,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 342 KiB",
            "urgency": "high",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87528,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 85 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 159,
            "displayValue": "Est savings of 160 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.42 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 889.14 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 551.04 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 363.79 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "high",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 342.33 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.48 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 666431.703910614
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 650.81 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 650.81 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 7655526,
        "css": {
          "unusedBytes": 87528,
          "ratio": 0.011433309742531081,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 910483,
          "duplicatedBytes": 0,
          "ratio": 0.11893147512006359,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0.125,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87528,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 910483,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 7,
        "urgency": "high",
        "transferBytes": 7655526,
        "estimatedDeferrableBytes": 1348561,
        "renderBlockingMs": 159,
        "breakdown": {
          "offscreenImageSavings": 350550,
          "unusedJavascriptSavings": 910483,
          "unusedCssSavings": 87528
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 350550,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 910483,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87528,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 159,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075211,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1225049,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149992,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
            }
          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20778,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
              "error": null
            }
          },
          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17241,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
              "error": null
            }
          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9498,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
              "error": null
            }
          },
          {
            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
              "error": null
            }
          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 27,
        "urgency": "high",
        "transferBytes": 7655526,
        "estimatedRedundantBytes": 998011,
        "redundancyRatio": 0.13036478486259467,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 910483,
            "displayValue": "Est savings of 889 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 87528,
            "displayValue": "Est savings of 85 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 910483,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 87528,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
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          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce DOM complexity and redundant markup",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "auditId": "dom-size",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
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      "modularization": {
        "score": 51,
        "urgency": "high",
        "totalTransferBytes": 7655526,
        "heavyRequestCount": 21,
        "heavyBytes": 7182020,
        "heavyRatio": 0.9381484694846572,
        "heavyRequests": [
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            "transferSize": 1075211,
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            "transferSize": 219297,
            "resourceType": "script",
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            "domain": "www.energy.gov"
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            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "transferSize": 159215,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-MFMY1F6D3V&cx=c&gtm=4e63i0",
            "transferSize": 158540,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "transferSize": 157564,
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            "domain": "www.googletagmanager.com"
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          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L",
            "transferSize": 148357,
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            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e63i0",
            "transferSize": 148118,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-WZQX9F4",
            "transferSize": 136243,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
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            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-PCSS9JS&gtm_auth=rQjC8QLyy7zCI51ldZjEbA&gtm_preview=env-3&gtm_cookies_win=x",
            "transferSize": 126162,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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            "transferSize": 116458,
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            "domain": "www.energy.gov"
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            "url": "https://www.googletagmanager.com/gtag/js?id=UA-17192165-1&cx=c&gtm=4e63i0",
            "transferSize": 115793,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
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            "url": "https://www.energy.gov/sites/default/files/js/js_6aKHWUA4B_IoeaUoIn2UWycDqqy767JuOIWdQ_f8Xhg.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJyFj0GOwzAIRS8Uhc3cJyL2r4tim8iQdHL7SdWkXbTVbEDwH_CJ7Jx5Q6MRV15Fm3WoaGkbuHLeXIJR4p8BK6oP3jhMUtMHRjVlvBonEbT6PklHiV_PUqdTTboSm8GffEEUprCYa7kPXyQtDcOYNUwP8SQN3MKVeJ67YyvFtsyc-_OIieMmcXeV0Zykinc3jBdthY7cI6Ps_voIZ8nWG6_4F3JN-7NfsQIzTu_6PfwB35CRhA",
            "transferSize": 98766,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
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        ],
        "groupedByType": [
          {
            "resourceType": "script",
            "count": 15,
            "transferBytes": 5250315
          },
          {
            "resourceType": "image",
            "count": 5,
            "transferBytes": 1839765
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91940
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 13,
            "transferBytes": 6032028
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149992
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 350550,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 910483,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 1075211,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "9.9 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 9.9 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 889 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 889 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 85 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 85 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,456 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,456 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 364 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 364 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 342 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 342 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 160 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 160 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.59,
          "displayValue": "5.2 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
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            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 5,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 291649.45,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "estimatedSavingsBytes": 278706.45,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "estimatedSavingsBytes": 7454,
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 272.17 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 1613245.45,
        "totalEstimatedBlockingMs": 905,
        "opportunities": [
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 905118,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 884 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 278706.45,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 272 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 265167,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 259 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88274,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 905,
            "displayValue": "Est savings of 910 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
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            "title": "Remove unused JavaScript",
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            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 883.90 KB."
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          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 272.17 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 258.95 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.21 KB."
          },
          {
            "title": "Lazy-load offscreen images",
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            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 905 ms."
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      "dependencyMaintenance": {
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          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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        "urgency": "medium",
        "vulnerableLibraryCount": 0,
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        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "6 external script dependency URL(s) are missing SRI integrity attributes."
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          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "urgency": "high",
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          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 514065.39581005566
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            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 502.02 KB)."
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        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 502.02 KB)."
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        ]
      },
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        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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        ]
      },
      "deadCode": {
        "score": 7,
        "urgency": "high",
        "transferBytes": 6100516,
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          "unusedBytes": 88274,
          "ratio": 0.014469923527780273,
          "auditId": "unused-css-rules"
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        "javascript": {
          "unusedBytes": 905118,
          "duplicatedBytes": 0,
          "ratio": 0.14836744957311807,
          "auditIds": [
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          "totalBodyElements": 0,
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          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
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        "recommendations": [
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            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88274,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 905118,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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        "urgency": "high",
        "transferBytes": 6100516,
        "estimatedDeferrableBytes": 1056429,
        "renderBlockingMs": 905,
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          "unusedCssSavings": 88274
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        "candidates": [
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            "title": "Lazy-load offscreen images",
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            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
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              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 905118,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88274,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 905,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
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            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075260,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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          }
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          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "urgency": "high",
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        "transferBytes": 1229125,
        "notGreenCount": 4,
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            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
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        "recommendations": [
          {
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          {
            "title": "Reduce third-party script payload and requests",
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            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
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            "title": "Prioritize greener alternatives for third-party providers",
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            "detail": "4 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
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        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 905118,
            "displayValue": "Est savings of 884 KiB"
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            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
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            "displayValue": "Est savings of 86 KiB"
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            "title": "Reduce unused javascript",
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            "title": "Reduce unused css",
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              "categoryId": "3",
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              "title": "Remove unnecessary or redundant information",
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        "urgency": "high",
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            "transferBytes": 5150961
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            "transferBytes": 235393
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        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 905118,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 1075260,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.04,
          "displayValue": "7.4 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 7.4 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 884 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 884 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 272 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 272 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 62 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 910 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 910 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
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            "estimatedBlockingMs": 331,
            "displayValue": "Est savings of 330 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.18 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "medium",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 97.15 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.52 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 331 ms."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 487910.57430167566
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 476.48 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 476.48 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 10,
        "urgency": "high",
        "transferBytes": 5831365,
        "css": {
          "unusedBytes": 88592,
          "ratio": 0.015192326324968511,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 913596,
          "duplicatedBytes": 0,
          "ratio": 0.1566693218483151,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0.125,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88592,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 913596,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 9,
        "urgency": "high",
        "transferBytes": 5831365,
        "estimatedDeferrableBytes": 1065225,
        "renderBlockingMs": 331,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 913596,
          "unusedCssSavings": 88592
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 913596,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88592,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 331,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075215,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224778,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149720,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
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          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20778,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
                {
                  "id": 108,
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
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                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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          },
          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17241,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
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                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
              "error": null
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          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9499,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
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          },
          {
            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
              "error": null
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          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 29,
        "urgency": "high",
        "transferBytes": 5831365,
        "estimatedRedundantBytes": 1002188,
        "redundancyRatio": 0.17186164817328362,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 913596,
            "displayValue": "Est savings of 892 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 88592,
            "displayValue": "Est savings of 87 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 913596,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 88592,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce DOM complexity and redundant markup",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "auditId": "dom-size",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
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      "modularization": {
        "score": 50,
        "urgency": "high",
        "totalTransferBytes": 5831365,
        "heavyRequestCount": 16,
        "heavyBytes": 5341089,
        "heavyRatio": 0.9159243161764012,
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            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L",
            "transferSize": 148100,
            "resourceType": "script",
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            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-WZQX9F4",
            "transferSize": 136240,
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        "groupedByType": [
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            "count": 15,
            "transferBytes": 5249131
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        "groupedByOrigin": [
          {
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            "transferBytes": 4191369
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            "count": 8,
            "transferBytes": 1149720
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        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 913596,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 1075215,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.16,
          "displayValue": "5.7 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.7 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 892 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 892 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 87 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 87 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 97 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 97 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 62 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 330 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 330 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.82,
          "displayValue": "3.9 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 3.9 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 5,695 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 5,695 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0.5,
          "displayValue": "1,013 elements",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 1,013 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
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            "title": "Add integrity attributes for external dependencies",
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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            "title": "No obvious outdated runtime version disclosed",
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          "impact": "high",
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          "displayValue": "Est savings of 86 KiB",
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            "title": "Remove unnecessary or redundant information",
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          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 97 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "score": 0.5,
          "displayValue": "Total size was 5,702 KiB",
          "impact": "medium",
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          },
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            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 504.32 KB)."
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      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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      "deadCode": {
        "score": 12,
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              "title": "Remove unnecessary code",
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          },
          {
            "area": "javascript",
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              "title": "Remove unnecessary code",
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          },
          {
            "title": "Defer non-critical JavaScript",
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              "categoryId": "3",
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              "title": "Defer the loading of non-critical resources",
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            "title": "Inline critical CSS and defer remainder",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
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          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "urgency": "high",
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        "notGreenCount": 3,
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            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
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              "green": true,
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
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              "status": "not-green",
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              "green": true,
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            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
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            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
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        "wasteByAudit": [
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            "title": "Reduce unused JavaScript",
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            "url": "https://www.energy.gov/sites/default/files/js/js_gG1i0QXYUzoAAa5wO8GvFB4y-Xy7PGeo5XsxqPEdnDM.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJxtjksOgzAMRC-E6k3vg0wyChaWgxyXNrcvC1I2Xc7Hz5M5WLnDacHKh1RvEwxe-szG2kNSo8LPGQcs5nBOm1j506m1KG5jNFK1OC_pkviEim0jzef74EVBisKpD7_Ug7g1xI_TwJ5W4n2fLgZlf-2sj4FsEnhLPjcoPEhM4gt7yVgo",
            "transferSize": 147212,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-WZQX9F4",
            "transferSize": 136244,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-PCSS9JS&gtm_auth=rQjC8QLyy7zCI51ldZjEbA&gtm_preview=env-3&gtm_cookies_win=x",
            "transferSize": 126168,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
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          {
            "url": "https://www.googletagmanager.com/gtag/js?id=UA-17192165-1&cx=c&gtm=4e63i0",
            "transferSize": 115794,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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            "url": "https://www.energy.gov/sites/default/files/css/css_O5fVRBFfj6fhEreA1DF4tUTO_NSTGRwryb9guQTJH-o.css?delta=4&language=en&theme=energy_gov&include=eJxNjFEKwzAMQy8U6iMFNxHBzItL7LbL7bfBAkM_T0-gYgNUx3mwblVYrSV0jDZz-S5_vHzl-GRXkKJxmcs3u4jdEZ7wCpX-WL-_mpSnnZGreLELY5J1FNPkErilIrNiBEmXSD498KSdHW-ArUA6",
            "transferSize": 91956,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "script",
            "count": 15,
            "transferBytes": 5298326
          },
          {
            "resourceType": "image",
            "count": 1,
            "transferBytes": 175092
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91956
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 9,
            "transferBytes": 4415617
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149757
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 933687,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 1075207,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.03,
          "displayValue": "7.8 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 7.8 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.45,
          "displayValue": "6.1 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 6.1 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 912 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 912 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 279 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 279 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 62 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 910 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 910 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "server-response-time",
          "title": "Reduce initial server response time",
          "description": "Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).",
          "score": 0,
          "displayValue": "Root document took 1,180 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "4",
            "categoryName": "Hosting, Infrastructure, and Systems",
            "id": "11",
            "title": "Ensure infrastructure fits project requirements",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements",
            "subheading": "Maintain the infrastructure you require rather than over-provisioning. Autoscale to meet demand and preserve hardware resources."
          },
          "issueTemplate": "## Improve Reduce initial server response time\n\n- Lighthouse audit: server-response-time\n- Current value: Root document took 1,180 ms\n- WSG guideline: 11 Ensure infrastructure fits project requirements\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements\n\n### Why this matters\nKeep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0,
          "displayValue": "1,199 elements",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 1,199 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 5,988 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 5,988 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/mesc/funding",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/mesc/funding",
      "performanceScore": 0.43,
      "bestPracticesScore": 0.75,
      "transferBytes": 6423710,
      "co2Grams": 2.460803819994,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149736,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
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            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 69.55 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 818 ms."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 490719.53519553045
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 479.22 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 479.22 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 12,
        "urgency": "high",
        "transferBytes": 6423710,
        "css": {
          "unusedBytes": 88184,
          "ratio": 0.013727892448444901,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 924657,
          "duplicatedBytes": 0,
          "ratio": 0.14394438727775694,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
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        },
        "html": {
          "estimatedPenalty": 0.25,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88184,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 924657,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 13,
        "urgency": "high",
        "transferBytes": 6423710,
        "estimatedDeferrableBytes": 1075878,
        "renderBlockingMs": 818,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 924657,
          "unusedCssSavings": 88184
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 924657,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88184,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 818,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075208,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224793,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149736,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
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          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20778,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "modified": "2025-11-25T09:52:18",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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            "hostname": "ssl.google-analytics.com",
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            "transferBytes": 17241,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "partner": null,
              "modified": "2025-11-25T09:13:07",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
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          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9498,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "modified": "2026-03-21T14:34:28.933004",
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
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          {
            "hostname": "www.clarity.ms",
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            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
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              "status": "not-green",
              "green": false,
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              "modified": "2026-03-21T14:43:53.340642",
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        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 39,
        "urgency": "high",
        "transferBytes": 6423710,
        "estimatedRedundantBytes": 1012841,
        "redundancyRatio": 0.15767227972620185,
        "relatedAuditIds": [
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          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
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            "displayValue": "Est savings of 903 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 88184,
            "displayValue": "Est savings of 86 KiB"
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        ],
        "recommendations": [
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            "title": "Reduce unused javascript",
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            "estimatedSavingsBytes": 924657,
            "auditId": "unused-javascript",
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              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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            "title": "Reduce unused css",
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            "auditId": "unused-css-rules",
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              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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        "wsg": {
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            "resourceType": "script",
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            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
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            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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            "urgency": "high",
            "estimatedSavingsBytes": 924657,
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
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          {
            "title": "Modularize heavy script asset from www.energy.gov",
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              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.2,
          "displayValue": "5.4 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.4 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.47,
          "displayValue": "6.0 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 6.0 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 903 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 903 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 70 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 70 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 62 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 820 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 820 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0,
          "displayValue": "885 elements",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 885 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 6,273 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 6,273 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/science/office-science-funding-opportunities",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/science/office-science-funding-opportunities",
      "performanceScore": 0.69,
      "bestPracticesScore": 0.79,
      "transferBytes": 2347703,
      "co2Grams": 0.8993613520242002,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149740,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
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            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 143.20 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 19,
        "urgency": "high",
        "transferBytes": 2347703,
        "css": {
          "unusedBytes": 88354,
          "ratio": 0.037634232268732457,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 914144,
          "duplicatedBytes": 0,
          "ratio": 0.38937804313407615,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88354,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 914144,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 16,
        "urgency": "high",
        "transferBytes": 2347703,
        "estimatedDeferrableBytes": 1065535,
        "renderBlockingMs": 229,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 914144,
          "unusedCssSavings": 88354
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914144,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88354,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 229,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348788,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 195968,
            "url": "https://www.energy.gov/sites/default/files/2025-04/white-fallback_0.png",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.googletagmanager.com",
            "area": "script",
            "urgency": "medium",
            "estimatedSavingsBytes": 159220,
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224797,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149740,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
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                  "link": "https://sustainability.google"
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                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
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                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26694,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
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            "hostname": "www.google-analytics.com",
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            "requestCount": 1,
            "transferBytes": 20778,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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            "transferBytes": 17241,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
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              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                {
                  "id": 1366,
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                {
                  "id": 1368,
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                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
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          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9497,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
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              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "modified": "2026-03-21T14:34:28.933004",
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
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            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
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              "listedProvider": null,
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              "modified": "2026-03-21T14:43:53.340642",
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          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
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      "redundancy": {
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        "estimatedRedundantBytes": 1002498,
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          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
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        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
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            "displayValue": "Est savings of 893 KiB"
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            "auditId": "unused-css-rules",
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              "categoryName": "Web Development",
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              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
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          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
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          "displayValue": "Est savings of 893 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
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            "categoryName": "Web Development",
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            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
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          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "displayValue": "Est savings of 246 KiB",
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          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 246 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "score": 0.5,
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          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
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            "title": "Remove unnecessary or redundant information",
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          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
              "error": null
            }
          },
          {
            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
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          }
        ],
        "summary": {
          "pageStatus": "not-green",
          "externalOriginCount": 6,
          "greenCount": 3,
          "notGreenCount": 4,
          "unknownCount": 0
        }
      },
      "formValidation": {
        "score": 0,
        "urgency": "low",
        "pageElementOccurrences": 0,
        "uniqueElementsAssessed": 0,
        "reusedFromCacheCount": 0,
        "components": [],
        "recommendations": [
          {
            "title": "No major form validation risks detected",
            "urgency": "low",
            "detail": "Continue testing form flows to ensure error handling remains clear across templates."
          }
        ]
      },
      "metadata": {
        "score": 0,
        "urgency": "low",
        "checks": {
          "hasTitle": true,
          "hasLang": true,
          "hasDescription": true,
          "hasCanonical": true,
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        },
        "observed": {
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          "description": "Save energy and money with tax credits and rebates when upgrading your home and vehicle.",
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          "ogTitle": "Energy Savings Hub",
          "ogDescription": "Save energy and money with tax credits and rebates when upgrading your home and vehicle.",
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          "validLdJsonCount": 0,
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        },
        "recommendations": [
          {
            "title": "Metadata structure looks healthy",
            "urgency": "low",
            "detail": "Core machine-readable metadata is present and no structural issues were detected."
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      "layoutAdaptation": {
        "score": 30,
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        "checks": {
          "testedMobile": true,
          "testedTablet": true,
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          "horizontalOverflowOnTablet": false,
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        "perDevice": [
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          "externalScriptsWithoutIntegrity": 4,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
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            "cache-control": "max-age=2764800, public",
            "cache-tags": "HIT",
            "content-language": "en",
            "content-security-policy": "",
            "date": "Sun, 22 Mar 2026 00:46:59 GMT",
            "etag": "\"1774081341:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
            "last-modified": "Sat, 21 Mar 2026 08:22:20 GMT",
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            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"5613a8f9a21b32f05d3fde5da1f8a562\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"38558879\"",
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            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "U_nUksBCVvkHlDxR42RNSSe1lbyEXtTidcLdmegxeabTxHNVj7iiwg==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "2659390 2273090",
            "x-xss-protection": "1; mode=block"
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          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
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            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
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            "status": 200,
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          {
            "path": "/sitemap.xml",
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            "url": "https://www.energy.gov/sitemap.xml",
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            "contentType": "application/xml; charset=utf-8"
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          {
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            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
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          {
            "path": "/manifest.webmanifest",
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            "url": "https://www.energy.gov/manifest.webmanifest",
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          {
            "path": "/favicon.ico",
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        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
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          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
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        "urgency": "low",
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          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "estimatedSavingsBytes": 1313162.1500000001,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "estimatedSavingsBytes": 449214,
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings."
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "estimatedSavingsBytes": 7454,
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.25 MB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 438.69 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 3047980.1500000004,
        "totalEstimatedBlockingMs": 334,
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 1313162.1500000001,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,282 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 912362,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 891 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 449214,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 439 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 209457,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 205 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87805,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 334,
            "displayValue": "Est savings of 330 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.25 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 890.98 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 438.69 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 204.55 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.75 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 650046.8865921783
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 634.81 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 634.81 KB)."
          }
        ]
      },
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          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 6,
        "urgency": "high",
        "transferBytes": 7483727,
        "css": {
          "unusedBytes": 87805,
          "ratio": 0.011732790359669721,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 912362,
          "duplicatedBytes": 0,
          "ratio": 0.12191278489982331,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87805,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 912362,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 7483727,
        "estimatedDeferrableBytes": 1063204,
        "renderBlockingMs": 334,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 912362,
          "unusedCssSavings": 87805
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 912362,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
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          "title": "Largest Contentful Paint",
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          "displayValue": "10.9 s",
          "impact": "high",
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            "title": "Set goals based on performance and energy impact",
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          "impact": "high",
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            "title": "Use dependencies appropriately and ensure maintenance",
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          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 891 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
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          "displayValue": "Est savings of 1,282 KiB",
          "impact": "high",
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            "title": "Optimize media to reduce resource use",
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          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 330 ms",
          "impact": "high",
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          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
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            "title": "Remove unnecessary or redundant information",
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          "score": 0.5,
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          "impact": "medium",
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          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 7,308 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "canonical": "https://www.energy.gov/energysaver/energy-saver",
          "ogTitle": "Energy Saver",
          "ogDescription": "Save money and energy at home. Learn ways to save energy and use clean, renewable energy technologies at home.",
          "ogType": "article",
          "ogUrl": "https://www.energy.gov/energysaver/energy-saver",
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          "invalidLdJsonCount": 0
        },
        "recommendations": [
          {
            "title": "Metadata structure looks healthy",
            "urgency": "low",
            "detail": "Core machine-readable metadata is present and no structural issues were detected."
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        ]
      },
      "layoutAdaptation": {
        "score": 30,
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        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 55,
          "tabletSmallTapTargets": 68,
          "fixedWidthOffenders": 0,
          "oversizedMedia": 0,
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        },
        "perDevice": [
          {
            "device": "mobile",
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          },
          {
            "device": "tablet",
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            "viewportHeight": 1180,
            "contentWidth": 820,
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            "fixedWidthOffenders": 0,
            "smallTapTargets": 68,
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          }
        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "high",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 55 small targets on mobile and 68 on tablet."
          }
        ]
      },
      "securityLight": {
        "score": 37,
        "urgency": "medium",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 4,
          "externalScriptsWithoutIntegrity": 4,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "age": "0",
            "cache-control": "max-age=2764800, public",
            "cache-tags": "HIT",
            "content-language": "en",
            "content-security-policy": "",
            "date": "Sun, 22 Mar 2026 00:47:14 GMT",
            "etag": "\"1774138793:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
            "last-modified": "Sun, 22 Mar 2026 00:19:52 GMT",
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            "referrer-policy": "same-origin",
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            "server-timing": "dtTrId;desc=\"61256235cf8e7a17a727b17d583ea25e\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"-1139190295\"",
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            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "C4EEluXRsxrjwTVOUk_uhYXb4PjQ5O5ds4e5Z8hfvBaNTubysmYUcg==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "10498564 10884806",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
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        "origin": "https://www.energy.gov",
        "checks": [
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            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
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          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
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            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
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            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
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            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
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            "contentType": "text/html; charset=iso-8859-1"
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        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
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            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
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      },
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
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        "urgency": "low",
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          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
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            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
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          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
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            "estimatedSavingsBytes": 7454,
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
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            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.48 MB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 612.08 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
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        "urgency": "high",
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        "totalEstimatedBlockingMs": 311,
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,512 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 887 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 663 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 626771,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 612 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 571916,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 559 KiB",
            "urgency": "high",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87361,
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            "displayValue": "Est savings of 85 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "render-blocking-resources",
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            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
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            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
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            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
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        ],
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            "title": "Serve images in next-gen formats",
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            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.48 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 887.02 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 663.39 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 612.08 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "high",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 558.51 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.31 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
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        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
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          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "urgency": "high",
        "checks": {
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          "worksOffline": false,
          "hasInstallableManifest": false,
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        "opportunities": [
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            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
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            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 664.18 KB)."
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        ],
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            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 664.18 KB)."
          }
        ]
      },
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "urgency": "low",
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        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
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        "urgency": "high",
        "transferBytes": 7791952,
        "css": {
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          "ratio": 0.011211696375953034,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 908308,
          "duplicatedBytes": 0,
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          "auditIds": [
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            "duplicated-javascript"
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        },
        "html": {
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          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87361,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 908308,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 9,
        "urgency": "high",
        "transferBytes": 7791952,
        "estimatedDeferrableBytes": 1567585,
        "renderBlockingMs": 311,
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          "offscreenImageSavings": 571916,
          "unusedJavascriptSavings": 908308,
          "unusedCssSavings": 87361
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        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 571916,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 908308,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87361,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 311,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075208,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
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          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 887 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
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          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 887 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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        {
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          "title": "Reduce unused CSS",
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          "score": 0,
          "displayValue": "Est savings of 85 KiB",
          "impact": "high",
          "wsg": {
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            "title": "Remove unnecessary or redundant information",
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          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
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          "displayValue": "Est savings of 1,512 KiB",
          "impact": "high",
          "wsg": {
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            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
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          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,512 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 612 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
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          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 612 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 559 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
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            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
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          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 310 ms",
          "impact": "high",
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          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
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            "title": "Remove unnecessary or redundant information",
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          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 7,609 KiB",
          "impact": "medium",
          "wsg": {
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            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
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            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
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          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 7,609 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "score": 0.5,
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          "ogDescription": "A More Energy-Efficient Home – At No Cost Eligible Households",
          "ogType": "article",
          "ogUrl": "https://www.energy.gov/scep/wap/weatherization-assistance-program",
          "twitterCard": "summary_large_image",
          "ldJsonCount": 0,
          "validLdJsonCount": 0,
          "invalidLdJsonCount": 0
        },
        "recommendations": [
          {
            "title": "Metadata structure looks healthy",
            "urgency": "low",
            "detail": "Core machine-readable metadata is present and no structural issues were detected."
          }
        ]
      },
      "layoutAdaptation": {
        "score": 30,
        "urgency": "medium",
        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 34,
          "tabletSmallTapTargets": 36,
          "fixedWidthOffenders": 0,
          "oversizedMedia": 0,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
            "viewportWidth": 390,
            "viewportHeight": 844,
            "contentWidth": 390,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 34,
            "oversizedMedia": 0
          },
          {
            "device": "tablet",
            "viewportWidth": 820,
            "viewportHeight": 1180,
            "contentWidth": 820,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 36,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "high",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 34 small targets on mobile and 36 on tablet."
          }
        ]
      },
      "securityLight": {
        "score": 37,
        "urgency": "medium",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 4,
          "externalScriptsWithoutIntegrity": 4,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "accept-ranges": "bytes",
            "age": "701",
            "cache-control": "max-age=2764800, public",
            "cache-tags": "HIT",
            "content-encoding": "gzip",
            "content-language": "en",
            "content-length": "27260",
            "content-security-policy": "",
            "content-type": "text/html; charset=UTF-8",
            "date": "Sun, 22 Mar 2026 00:47:31 GMT",
            "etag": "\"1774139748:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
            "last-modified": "Sun, 22 Mar 2026 00:35:47 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"060814f4ef05cc7702218a968eda950d\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"-1777550479\"",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_1_sn_FF432126413461FDD4149CE355F29C65_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "eYeWGXDMw3LVhhb5sXxFqkMFHUbn3nFjH01CnfHGd5x9eT1v5idAVQ==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "MISS",
            "x-drupal-dynamic-cache": "UNCACHEABLE (poor cacheability)",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "4059804 2093387",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 47,
        "urgency": "medium",
        "totalEstimatedSavingsBytes": 5245094.6,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "estimatedSavingsBytes": 4807349.6,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "estimatedSavingsBytes": 424802,
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings."
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "estimatedSavingsBytes": 7454,
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 4.58 MB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 414.85 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 8007986.6,
        "totalEstimatedBlockingMs": 345,
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 4807349.6,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 4,695 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 1700379,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,661 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 911996,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 891 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 424802,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 415 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87480,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 85 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 345,
            "displayValue": "Est savings of 350 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 4.58 MB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 1.62 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 890.62 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 414.85 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.43 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 1007709.6039106136
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 984.09 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 984.09 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 4,
        "urgency": "high",
        "transferBytes": 11132575,
        "css": {
          "unusedBytes": 87480,
          "ratio": 0.007858020269344693,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 911996,
          "duplicatedBytes": 0,
          "ratio": 0.08192138835803936,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87480,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 911996,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 6,
        "urgency": "high",
        "transferBytes": 11132575,
        "estimatedDeferrableBytes": 1062513,
        "renderBlockingMs": 345,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 911996,
          "unusedCssSavings": 87480
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 911996,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87480,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 345,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 1471036,
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/roof-insulation.png?itok=M2LNkodt",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075206,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
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            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 19.2 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 891 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 891 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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        {
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          "displayValue": "Est savings of 85 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Remove unnecessary or redundant information",
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          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 85 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 4,695 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
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            "title": "Optimize media to reduce resource use",
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          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 4,695 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
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          "displayValue": "Est savings of 62 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Modularize bandwidth-heavy components",
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          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 350 ms",
          "impact": "high",
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            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
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          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 350 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "auditId": "server-response-time",
          "title": "Reduce initial server response time",
          "description": "Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).",
          "score": 0,
          "displayValue": "Root document took 1,010 ms",
          "impact": "high",
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            "title": "Ensure infrastructure fits project requirements",
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            "subheading": "Maintain the infrastructure you require rather than over-provisioning. Autoscale to meet demand and preserve hardware resources."
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            "title": "Set goals based on performance and energy impact",
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          "title": "Efficiently encode images",
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          "auditId": "uses-text-compression",
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          "score": 0.5,
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          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 10,872 KiB",
          "impact": "medium",
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            "title": "Define performance and environmental budgets",
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            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
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          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 10,872 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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        "score": 55,
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                "No error messaging hook",
                "Missing autocomplete for tooling support"
              ],
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                "Define validation constraints (required, pattern, min/max, or semantic input type).",
                "Add aria-errormessage/aria-describedby and a visible error region for invalid input.",
                "Provide meaningful autocomplete values to support browsers and assistive tooling."
              ]
            },
            "reusedFromCache": true
          },
          {
            "signature": "no-form|select|select|datatables_table_0_length|no-autocomplete|optional|no-pattern|no-minlength",
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            "formContext": "no-form",
            "hasLabel": true,
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            "hasErrorMessagingHook": false,
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            "assessment": {
              "score": 50,
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              "issues": [
                "No explicit validation rule",
                "No error messaging hook"
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              "recommendations": [
                "Define validation constraints (required, pattern, min/max, or semantic input type).",
                "Add aria-errormessage/aria-describedby and a visible error region for invalid input."
              ]
            },
            "reusedFromCache": true
          }
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        "recommendations": [
          {
            "title": "No explicit validation rule",
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            "detail": "2 unique form control signature(s) on this page include this issue."
          },
          {
            "title": "No error messaging hook",
            "urgency": "medium",
            "detail": "2 unique form control signature(s) on this page include this issue."
          },
          {
            "title": "Missing autocomplete for tooling support",
            "urgency": "medium",
            "detail": "1 unique form control signature(s) on this page include this issue."
          }
        ]
      },
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        "checks": {
          "hasTitle": true,
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            "title": "Metadata structure looks healthy",
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        "checks": {
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          "externalScriptsWithoutIntegrity": 4,
          "vulnerableLibraryCount": 0
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        "observed": {
          "headers": {
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            "cache-control": "max-age=2764800, public",
            "cache-tags": "HIT",
            "content-language": "en",
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            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
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            "x-content-type-options": "nosniff",
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            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
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        "recommendations": [
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            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
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            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
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            "status": 200,
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            "url": "https://www.energy.gov/manifest.webmanifest",
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            "status": 404,
            "contentType": "text/html; charset=UTF-8"
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          {
            "path": "/favicon.ico",
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          {
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          {
            "title": "Improve image encoding quality/size",
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            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 358.20 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
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          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
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        "urgency": "high",
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            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 934214,
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            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
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            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
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            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
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            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
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            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
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            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
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            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
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            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
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            "displayValue": "Est savings of 62 KiB",
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            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
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          {
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          {
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            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 358.20 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.66 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
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      },
      "dependencyMaintenance": {
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          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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        "score": 8,
        "urgency": "medium",
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        "vulnerableLibraries": [],
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        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
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        ]
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      "offlineSupport": {
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          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "score": 100,
        "urgency": "high",
        "checks": {
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          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 224986.66312849152
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        "opportunities": [
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            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
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            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 219.71 KB)."
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        ],
        "recommendations": [
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            "title": "Add service worker support",
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          {
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            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "urgency": "low",
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        "urgency": "high",
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          "auditId": "unused-css-rules"
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          "auditIds": [
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        "html": {
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          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87720,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 934214,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 18,
        "urgency": "high",
        "transferBytes": 3155422,
        "estimatedDeferrableBytes": 1084971,
        "renderBlockingMs": 766,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 934214,
          "unusedCssSavings": 87720
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
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              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 934214,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 541142,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/AdobeStock_107812209.jpeg?itok=yrxBVcS-",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348770,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.02,
          "displayValue": "8.4 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 8.4 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 912 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 912 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 749 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 749 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 358 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 358 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 770 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 770 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0,
          "displayValue": "833 elements",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 833 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.87,
          "displayValue": "3.6 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 3.6 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 3,081 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 3,081 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/apprenticeships-workforce-development",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/apprenticeships-workforce-development",
      "performanceScore": 0.68,
      "bestPracticesScore": 0.79,
      "transferBytes": 2451530,
      "co2Grams": 0.9391355445420001,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149749,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "partner": null,
              "modified": "2026-03-06T00:36:18",
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                  "title": "Alphabet 2024 CDP Climate Change Response",
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                  "title": "Google 2024 Supplier Responsibility Report.",
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                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
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                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
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            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26692,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
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              "hostname": "scripts.clarity.ms",
              "checked": true,
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              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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            "title": "Defer non-critical UI modules until after first render",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348779,
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              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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          {
            "title": "Modularize heavy image asset from www.energy.gov",
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          "categoryId": "3",
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          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 892 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 892 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 337 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
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            "title": "Optimize media to reduce resource use",
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          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 337 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 150 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 150 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
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          "score": 0.83,
          "displayValue": "2.8 s",
          "impact": "medium",
          "wsg": {
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            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
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          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 2.8 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 342 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
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        },
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          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0.5,
          "displayValue": "849 elements",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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        }
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          "unknownCount": 0
        }
      },
      "formValidation": {
        "score": 0,
        "urgency": "low",
        "pageElementOccurrences": 0,
        "uniqueElementsAssessed": 0,
        "reusedFromCacheCount": 0,
        "components": [],
        "recommendations": [
          {
            "title": "No major form validation risks detected",
            "urgency": "low",
            "detail": "Continue testing form flows to ensure error handling remains clear across templates."
          }
        ]
      },
      "metadata": {
        "score": 0,
        "urgency": "low",
        "checks": {
          "hasTitle": true,
          "hasLang": true,
          "hasDescription": true,
          "hasCanonical": true,
          "hasOpenGraphCore": true,
          "hasTwitterCard": true,
          "hasViewport": true,
          "hasCharset": true,
          "hasValidStructuredData": true,
          "hasInvalidStructuredData": false
        },
        "observed": {
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          "lang": "en",
          "charset": "utf-8",
          "viewport": "width=device-width, initial-scale=1.0",
          "description": "Join a dynamic team committed to driving innovation and securing our future.",
          "robots": "",
          "canonical": "https://www.energy.gov/work-us-department-energy",
          "ogTitle": "Work at the U.S. Department of Energy",
          "ogDescription": "Join a dynamic team committed to driving innovation and securing our future.",
          "ogType": "article",
          "ogUrl": "https://www.energy.gov/work-us-department-energy",
          "twitterCard": "summary_large_image",
          "ldJsonCount": 0,
          "validLdJsonCount": 0,
          "invalidLdJsonCount": 0
        },
        "recommendations": [
          {
            "title": "Metadata structure looks healthy",
            "urgency": "low",
            "detail": "Core machine-readable metadata is present and no structural issues were detected."
          }
        ]
      },
      "layoutAdaptation": {
        "score": 30,
        "urgency": "medium",
        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 40,
          "tabletSmallTapTargets": 46,
          "fixedWidthOffenders": 0,
          "oversizedMedia": 0,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
            "viewportWidth": 390,
            "viewportHeight": 844,
            "contentWidth": 390,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 40,
            "oversizedMedia": 0
          },
          {
            "device": "tablet",
            "viewportWidth": 820,
            "viewportHeight": 1180,
            "contentWidth": 820,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 46,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "high",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 40 small targets on mobile and 46 on tablet."
          }
        ]
      },
      "securityLight": {
        "score": 37,
        "urgency": "medium",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 4,
          "externalScriptsWithoutIntegrity": 4,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "age": "3055",
            "cache-control": "max-age=2764800, public",
            "cache-tags": "HIT",
            "content-language": "en",
            "content-security-policy": "",
            "date": "Sun, 22 Mar 2026 00:48:15 GMT",
            "etag": "\"1774107527:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
            "last-modified": "Sat, 21 Mar 2026 15:38:46 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"576cdbafb788e1937246b8d8e364d5a6\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"1135456705\"",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_3_sn_EF1BAE587B26FEDA0AC5938327F65512_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "FtyqbyRg_AsEmnhkC6fklxdVv8GO8AmUTOvuiK_A_NQFbxGzigFZVw==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "2877056 9064694",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 40,
        "urgency": "medium",
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        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "estimatedSavingsBytes": 1000860.15,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "estimatedSavingsBytes": 353435,
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 977.40 KB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 345.15 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 2790725.15,
        "totalEstimatedBlockingMs": 374,
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 1000860.15,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 977 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 912260,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 891 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 353435,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 345 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 350550,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 342 KiB",
            "urgency": "high",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87480,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 85 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
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            "estimatedBlockingMs": 374,
            "displayValue": "Est savings of 370 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
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            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 977.40 KB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 890.88 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 345.15 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "high",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 342.33 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.43 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 246354.6019553071
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 240.58 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 240.58 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 18,
        "urgency": "high",
        "transferBytes": 3368535,
        "css": {
          "unusedBytes": 87480,
          "ratio": 0.025969746492169446,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 912260,
          "duplicatedBytes": 0,
          "ratio": 0.2708180262339563,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
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        },
        "html": {
          "estimatedPenalty": 0.25,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87480,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 912260,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 16,
        "urgency": "high",
        "transferBytes": 3368535,
        "estimatedDeferrableBytes": 1350290,
        "renderBlockingMs": 374,
        "breakdown": {
          "offscreenImageSavings": 350550,
          "unusedJavascriptSavings": 912260,
          "unusedCssSavings": 87480
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 350550,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 912260,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87480,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 374,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 540475,
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/AdobeStock_571372257_0.jpeg?itok=dV6pAGas",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
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          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.01,
          "displayValue": "8.7 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 8.7 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 891 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 891 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 85 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 85 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 977 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 977 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 345 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 345 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 370 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 370 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0,
          "displayValue": "824 elements",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 824 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 342 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
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          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 342 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 3,290 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 3,290 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
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      "bestPracticesScore": 0.79,
      "transferBytes": 9210994,
      "co2Grams": 3.5285604769116006,
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            "title": "Enable text compression",
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              "title": "Defer the loading of non-critical resources",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 7.6 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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            "title": "Use dependencies appropriately and ensure maintenance",
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            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 886 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "title": "Reduce unused CSS",
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          "score": 0,
          "displayValue": "Est savings of 87 KiB",
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            "title": "Remove unnecessary or redundant information",
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          "validLdJsonCount": 0,
          "invalidLdJsonCount": 0
        },
        "recommendations": [
          {
            "title": "Metadata structure looks healthy",
            "urgency": "low",
            "detail": "Core machine-readable metadata is present and no structural issues were detected."
          }
        ]
      },
      "layoutAdaptation": {
        "score": 42,
        "urgency": "medium",
        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 30,
          "tabletSmallTapTargets": 31,
          "fixedWidthOffenders": 6,
          "oversizedMedia": 0,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
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            "viewportHeight": 844,
            "contentWidth": 390,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 3,
            "smallTapTargets": 30,
            "oversizedMedia": 0
          },
          {
            "device": "tablet",
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            "viewportHeight": 1186,
            "contentWidth": 824,
            "horizontalOverflowPx": 0,
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            "fixedWidthOffenders": 3,
            "smallTapTargets": 31,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "high",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 30 small targets on mobile and 31 on tablet."
          },
          {
            "title": "Refactor fixed-width components",
            "urgency": "medium",
            "detail": "6 element(s) exceeded viewport width in tested layouts; use responsive component constraints."
          }
        ]
      },
      "securityLight": {
        "score": 39,
        "urgency": "medium",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 5,
          "externalScriptsWithoutIntegrity": 5,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "age": "497",
            "cache-control": "max-age=2764800, public",
            "cache-tags": "HIT",
            "content-language": "en",
            "content-security-policy": "",
            "date": "Sun, 22 Mar 2026 00:48:51 GMT",
            "etag": "\"1774139129:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
            "last-modified": "Sun, 22 Mar 2026 00:25:28 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"3b978bd9631cc20e424acffa7b3354de\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"-1956376136\"",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_1_sn_CA820AE07A77856E4FE5737F5FC44E77_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "5qBiD3kWuBaHuw7938Xti8b00YYLkrAGBuriN2cY1c7h9JcqGv1vzg==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "1536756 1077395",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "5 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
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        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 1,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 84159,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "estimatedSavingsBytes": 71216,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "estimatedSavingsBytes": 7454,
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 1217650,
        "totalEstimatedBlockingMs": 460,
        "opportunities": [
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 901542,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 880 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88261,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 71216,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 70 KiB",
            "urgency": "medium",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 460,
            "displayValue": "Est savings of 460 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 880.41 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.19 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "medium",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 69.55 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 460 ms."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 10,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 5,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "5 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 483638.1620111729
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 472.30 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 472.30 KB)."
          }
        ]
      },
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "urgency": "low",
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            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
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        "urgency": "high",
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          "ratio": 0.015252365377280938,
          "auditId": "unused-css-rules"
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        "javascript": {
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          "ratio": 0.15579528882478796,
          "auditIds": [
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            "duplicated-javascript"
          ]
        },
        "html": {
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          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88261,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 901542,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 10,
        "urgency": "high",
        "transferBytes": 5786709,
        "estimatedDeferrableBytes": 1052840,
        "renderBlockingMs": 460,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 901542,
          "unusedCssSavings": 88261
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 901542,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88261,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 460,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075251,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 7,
        "requestCount": 14,
        "transferBytes": 1224962,
        "notGreenCount": 4,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149905,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
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          },
          {
            "title": "Defer non-critical JavaScript",
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "urgency": "high",
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                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
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          "title": "Largest Contentful Paint",
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          "displayValue": "5.1 s",
          "impact": "high",
          "wsg": {
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            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
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          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.1 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 884 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 884 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 70 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 70 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
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            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 1,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 84159,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "estimatedSavingsBytes": 71216,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "estimatedSavingsBytes": 7454,
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 1221008,
        "totalEstimatedBlockingMs": 461,
        "opportunities": [
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 904829,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 884 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88332,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 71216,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 70 KiB",
            "urgency": "medium",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 461,
            "displayValue": "Est savings of 460 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 883.62 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.26 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "medium",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 69.55 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 461 ms."
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        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 10,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 5,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "5 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 484751.2723463685
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 473.39 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 473.39 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 5798801,
        "css": {
          "unusedBytes": 88332,
          "ratio": 0.01523280416072219,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 904829,
          "duplicatedBytes": 0,
          "ratio": 0.15603725666736967,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
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        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88332,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 904829,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 10,
        "urgency": "high",
        "transferBytes": 5798801,
        "estimatedDeferrableBytes": 1056198,
        "renderBlockingMs": 461,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 904829,
          "unusedCssSavings": 88332
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        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 904829,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88332,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 461,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075498,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
        "providerCount": 7,
        "requestCount": 14,
        "transferBytes": 1224792,
        "notGreenCount": 4,
        "unknownCount": 0,
        "scripts": [
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            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149735,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "partner": null,
              "modified": "2026-03-06T00:36:18",
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                  "title": "Alphabet 2024 CDP Climate Change Response",
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                  "title": "Google 2024 Supplier Responsibility Report.",
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26692,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "modified": "2026-03-21T20:44:41.287420",
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            "sampleUrl": "https://www.google-analytics.com/analytics.js",
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              "green": true,
              "hostedBy": "Google Cloud",
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            "transferBytes": 17241,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
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              "green": true,
              "hostedBy": "Google Cloud",
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              "title": "Modularize bandwidth-heavy components",
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              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
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          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
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          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.25,
          "displayValue": "5.1 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.1 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 884 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 884 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 70 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 70 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 460 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 460 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.63,
          "displayValue": "5.0 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 5.0 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
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          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 330,
            "displayValue": "Est savings of 330 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 890.95 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 309.59 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.85 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 330 ms."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 153748.43351955301
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 150.14 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 150.14 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 18,
        "urgency": "high",
        "transferBytes": 2421831,
        "css": {
          "unusedBytes": 87908,
          "ratio": 0.036298156229728665,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 912335,
          "duplicatedBytes": 0,
          "ratio": 0.3767129085390351,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87908,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 912335,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 16,
        "urgency": "high",
        "transferBytes": 2421831,
        "estimatedDeferrableBytes": 1063280,
        "renderBlockingMs": 330,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 912335,
          "unusedCssSavings": 87908
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 912335,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87908,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 330,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348777,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 288530,
            "url": "https://www.energy.gov/themes/custom/energy_gov/img/Photo-FallBackImage-new.png",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.googletagmanager.com",
            "area": "script",
            "urgency": "medium",
            "estimatedSavingsBytes": 159220,
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224797,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149739,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26692,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
            }
          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20779,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
              "error": null
            }
          },
          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17241,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
              "error": null
            }
          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9499,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
              "error": null
            }
          },
          {
            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
              "error": null
            }
          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 30,
        "urgency": "high",
        "transferBytes": 2421831,
        "estimatedRedundantBytes": 1000243,
        "redundancyRatio": 0.4130110647687638,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 912335,
            "displayValue": "Est savings of 891 KiB"
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          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 87908,
            "displayValue": "Est savings of 86 KiB"
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        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 912335,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 87908,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
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          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
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          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
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      "modularization": {
        "score": 51,
        "urgency": "high",
        "totalTransferBytes": 2421831,
        "heavyRequestCount": 12,
        "heavyBytes": 1977306,
        "heavyRatio": 0.8164508588749586,
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            "domain": "www.energy.gov"
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            "domain": "www.googletagmanager.com"
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            "domain": "www.energy.gov"
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            "resourceType": "script",
            "count": 10,
            "transferBytes": 1596813
          },
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            "resourceType": "image",
            "count": 1,
            "transferBytes": 288530
          },
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            "count": 1,
            "transferBytes": 91963
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        "groupedByOrigin": [
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149739
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            "domain": "www.energy.gov",
            "count": 4,
            "transferBytes": 827567
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        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 912335,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348777,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 288530,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/img/Photo-FallBackImage-new.png",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.googletagmanager.com",
            "urgency": "medium",
            "estimatedSavingsBytes": 159220,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.28,
          "displayValue": "4.9 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 4.9 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 891 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 891 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 310 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 310 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 330 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 330 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/topics/artificial-intelligence",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/topics/artificial-intelligence",
      "performanceScore": 0.53,
      "bestPracticesScore": 0.79,
      "transferBytes": 3629353,
      "co2Grams": 1.3903376283342,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1150675,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
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                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
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            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 265.14 KB)."
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      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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      "deadCode": {
        "score": 15,
        "urgency": "high",
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        "html": {
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          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
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        "recommendations": [
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            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
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            "estimatedSavingsBytes": 86931,
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              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
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          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
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              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
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            "strategy": "Load below-the-fold images only when they approach the viewport.",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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          {
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
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              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
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        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
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        "transferBytes": 1225735,
        "notGreenCount": 3,
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            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
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              "status": "green",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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            "transferBytes": 26692,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
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            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
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            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-WZQX9F4",
            "transferSize": 136244,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-PCSS9JS&gtm_auth=rQjC8QLyy7zCI51ldZjEbA&gtm_preview=env-3&gtm_cookies_win=x",
            "transferSize": 126168,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=UA-17192165-1&cx=c&gtm=4e63j1h2",
            "transferSize": 116017,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/js/js_zKKF6aMALZ8I4xNBLCovOiSmbp8brvk35JuqYftzvUo.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJxtjUEOwjAMBD9U4Qv_iUxipVYtJ7JNIL-nhwYuHHd3RlswUHCSwYN2HNzMN1KyOhMqygzODhXviQZppDDMB2v9w7RWhX7FInLTOE24Ir1DWI-11jYA3Sm-vBNa3gF73y4Wij07ym2pzkEvLueXkAWwcnwAqu9OzQ",
            "transferSize": 98296,
            "resourceType": "script",
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            "domain": "www.energy.gov"
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            "url": "https://www.energy.gov/sites/default/files/css/css_O5fVRBFfj6fhEreA1DF4tUTO_NSTGRwryb9guQTJH-o.css?delta=7&language=en&theme=energy_gov&include=eJx9kFGywyAIRTdk4pIyNDCWeUQdwKbZ_UvT2PYrPw5czmHUuShF1FZBRmSQkgJl0rRN82vyU_c8lUcEM3IL9HTh_Nf9sw0VFJJCvVuffJOx5dpuwnYnDMZOKyNNIKQeObMH28xpiTcwCs1WtOkj79dYasmU3d6GxYMY3s0VPoNip4_6Ei7SltzxpIyDwFaaX0lLQZBTOeoreH9inTgjz-BFT-sVDp9w2P_Iw4NptXic4761Cf0DLRmtMg",
            "transferSize": 91954,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "script",
            "count": 10,
            "transferBytes": 1597740
          },
          {
            "resourceType": "image",
            "count": 4,
            "transferBytes": 1499448
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91954
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 7,
            "transferBytes": 2038467
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1150675
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 350550,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 915104,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 677369,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/Artificial%20Intelligence%20Banner%20Option.jpeg?itok=Io3ZAXr-",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348769,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.19,
          "displayValue": "5.5 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.5 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 894 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 894 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 85 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 85 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,195 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,195 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 548 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 548 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 300 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 300 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 342 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 342 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 3,544 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 3,544 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0.5,
          "displayValue": "1,151 elements",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 1,151 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/genesis",
      "status": "ok",
      "finalUrl": "https://genesis.energy.gov/",
      "performanceScore": 0.41,
      "bestPracticesScore": 0.96,
      "transferBytes": 46768206,
      "co2Grams": 17.9160298299684,
      "greenWeb": {
        "page": {
          "hostname": "genesis.energy.gov",
          "checked": true,
          "status": "green",
          "green": true,
          "hostedBy": "Cloudflare",
          "hostedByWebsite": "https://www.cloudflare.com",
          "listedProvider": true,
          "partner": null,
          "modified": "2026-03-22T00:50:11.241208",
          "supportingDocuments": [
            {
              "id": 18,
              "title": "Blog post - The Climate and Cloudflare",
              "link": "https://blog.cloudflare.com/the-climate-and-cloudflare/"
            },
            {
              "id": 1264,
              "title": "Cloudflare 2023 Emissions Inventory",
              "link": "https://media.greenweb.org/uploads/Cloudflare_2023_Emissions_Inventory.pdf"
            }
          ],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/genesis.energy.gov",
          "error": null
        },
        "externalAssets": [
          {
            "hostname": "customer-29f0fiy60aiz1fqm.cloudflarestream.com",
            "resourceType": "script",
            "requestCount": 2,
            "transferBytes": 351650,
            "sampleUrl": "https://customer-29f0fiy60aiz1fqm.cloudflarestream.com/embed/sdk-iframe-integration.fla9.latest.js",
            "greenCheck": {
              "hostname": "customer-29f0fiy60aiz1fqm.cloudflarestream.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Cloudflare",
              "hostedByWebsite": "https://www.cloudflare.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-22T00:50:09.360322",
              "supportingDocuments": [
                {
                  "id": 18,
                  "title": "Blog post - The Climate and Cloudflare",
                  "link": "https://blog.cloudflare.com/the-climate-and-cloudflare/"
                },
                {
                  "id": 1264,
                  "title": "Cloudflare 2023 Emissions Inventory",
                  "link": "https://media.greenweb.org/uploads/Cloudflare_2023_Emissions_Inventory.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/customer-29f0fiy60aiz1fqm.cloudflarestream.com",
              "error": null
            }
          },
          {
            "hostname": "challenges.cloudflare.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17377,
            "sampleUrl": "https://challenges.cloudflare.com/turnstile/v0/g/ea2d291c0fdc/api.js",
            "greenCheck": {
              "hostname": "challenges.cloudflare.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Cloudflare",
              "hostedByWebsite": "https://www.cloudflare.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:19",
              "supportingDocuments": [
                {
                  "id": 18,
                  "title": "Blog post - The Climate and Cloudflare",
                  "link": "https://blog.cloudflare.com/the-climate-and-cloudflare/"
                },
                {
                  "id": 1264,
                  "title": "Cloudflare 2023 Emissions Inventory",
                  "link": "https://media.greenweb.org/uploads/Cloudflare_2023_Emissions_Inventory.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/challenges.cloudflare.com",
              "error": null
            }
          },
          {
            "hostname": "cdn.infra.ndstudio.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 5029,
            "sampleUrl": "https://cdn.infra.ndstudio.gov/internal-analytics/script.js",
            "greenCheck": {
              "hostname": "cdn.infra.ndstudio.gov",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Cloudflare",
              "hostedByWebsite": "https://www.cloudflare.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-22T00:50:09.881236",
              "supportingDocuments": [
                {
                  "id": 18,
                  "title": "Blog post - The Climate and Cloudflare",
                  "link": "https://blog.cloudflare.com/the-climate-and-cloudflare/"
                },
                {
                  "id": 1264,
                  "title": "Cloudflare 2023 Emissions Inventory",
                  "link": "https://media.greenweb.org/uploads/Cloudflare_2023_Emissions_Inventory.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/cdn.infra.ndstudio.gov",
              "error": null
            }
          }
        ],
        "summary": {
          "pageStatus": "green",
          "externalOriginCount": 3,
          "greenCount": 4,
          "notGreenCount": 0,
          "unknownCount": 0
        }
      },
      "formValidation": {
        "score": 30,
        "urgency": "medium",
        "pageElementOccurrences": 1,
        "uniqueElementsAssessed": 1,
        "reusedFromCacheCount": 0,
        "components": [
          {
            "signature": "form|get|self|input|email|anonymous|no-autocomplete|required|no-pattern|no-minlength",
            "role": "form",
            "controlType": "email",
            "fieldName": null,
            "formContext": "form|get|self",
            "hasLabel": true,
            "hasValidationRule": true,
            "hasErrorMessagingHook": false,
            "toolingFriendly": false,
            "assessment": {
              "score": 30,
              "urgency": "medium",
              "issues": [
                "No error messaging hook",
                "Missing autocomplete for tooling support"
              ],
              "recommendations": [
                "Add aria-errormessage/aria-describedby and a visible error region for invalid input.",
                "Provide meaningful autocomplete values to support browsers and assistive tooling."
              ]
            },
            "reusedFromCache": false
          }
        ],
        "recommendations": [
          {
            "title": "No error messaging hook",
            "urgency": "medium",
            "detail": "1 unique form control signature(s) on this page include this issue."
          },
          {
            "title": "Missing autocomplete for tooling support",
            "urgency": "medium",
            "detail": "1 unique form control signature(s) on this page include this issue."
          }
        ]
      },
      "metadata": {
        "score": 10,
        "urgency": "low",
        "checks": {
          "hasTitle": true,
          "hasLang": true,
          "hasDescription": true,
          "hasCanonical": false,
          "hasOpenGraphCore": true,
          "hasTwitterCard": true,
          "hasViewport": true,
          "hasCharset": true,
          "hasValidStructuredData": true,
          "hasInvalidStructuredData": false
        },
        "observed": {
          "title": "Genesis Mission",
          "lang": "en",
          "charset": "utf-8",
          "viewport": "width=device-width, initial-scale=1",
          "description": "A National Initiative to Accelerate Science Through AI. Genesis Mission is a national initiative to build the world's most powerful scientific platform to accelerate discovery science, strengthen national security, and drive energy innovation.",
          "robots": "",
          "canonical": "",
          "ogTitle": "Genesis Mission",
          "ogDescription": "A National Initiative to Accelerate Science Through AI. Genesis Mission is a national initiative to build the world's most powerful scientific platform to accelerate discovery science, strengthen national security, and drive energy innovation.",
          "ogType": "website",
          "ogUrl": "https://genesis.energy.gov",
          "twitterCard": "summary_large_image",
          "ldJsonCount": 0,
          "validLdJsonCount": 0,
          "invalidLdJsonCount": 0
        },
        "recommendations": [
          {
            "title": "Add canonical URL metadata",
            "urgency": "medium",
            "detail": "Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling."
          }
        ]
      },
      "layoutAdaptation": {
        "score": 38,
        "urgency": "medium",
        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 11,
          "tabletSmallTapTargets": 11,
          "fixedWidthOffenders": 4,
          "oversizedMedia": 1,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
            "viewportWidth": 390,
            "viewportHeight": 844,
            "contentWidth": 390,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 3,
            "smallTapTargets": 11,
            "oversizedMedia": 1
          },
          {
            "device": "tablet",
            "viewportWidth": 820,
            "viewportHeight": 1180,
            "contentWidth": 820,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 1,
            "smallTapTargets": 11,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "medium",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 11 small targets on mobile and 11 on tablet."
          },
          {
            "title": "Refactor fixed-width components",
            "urgency": "medium",
            "detail": "4 element(s) exceeded viewport width in tested layouts; use responsive component constraints."
          },
          {
            "title": "Constrain media dimensions",
            "urgency": "medium",
            "detail": "1 media element(s) exceeded viewport width. Apply max-width: 100% and responsive media patterns."
          }
        ]
      },
      "securityLight": {
        "score": 59,
        "urgency": "medium",
        "checks": {
          "isHttps": true,
          "hasHsts": false,
          "hasCsp": false,
          "hasXContentTypeOptions": false,
          "hasReferrerPolicy": false,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 1,
          "externalScriptsWithoutIntegrity": 1,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "accept-ch": "Sec-CH-Prefers-Color-Scheme",
            "cache-control": "private, no-cache, no-store, max-age=0, must-revalidate",
            "cf-ray": "9e01337638e0a45b-IAD",
            "content-encoding": "gzip",
            "content-type": "text/html; charset=utf-8",
            "critical-ch": "Sec-CH-Prefers-Color-Scheme",
            "date": "Sun, 22 Mar 2026 00:50:14 GMT",
            "link": "<https://customer-29f0fiy60aiz1fqm.cloudflarestream.com/0df9da0f6e9cb5191543ae3fb105a4e6/thumbnails/thumbnail.jpg?time=5s>; rel=preload; as=\"image\", </_next/static/css/dd6aa5935bc9aa5f.css>; rel=preload; as=\"style\"",
            "server": "cloudflare",
            "vary": "Sec-CH-Prefers-Color-Scheme",
            "x-powered-by": "Next.js, Payload"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Enable Strict-Transport-Security",
            "urgency": "medium",
            "detail": "Set a Strict-Transport-Security header to enforce HTTPS on repeat visits."
          },
          {
            "title": "Set X-Content-Type-Options: nosniff",
            "urgency": "medium",
            "detail": "Prevent MIME type sniffing by adding the nosniff response header."
          },
          {
            "title": "Define a Referrer-Policy",
            "urgency": "low",
            "detail": "Set a referrer policy to reduce unnecessary URL data leakage."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "1 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 75,
        "urgency": "high",
        "origin": "https://genesis.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://genesis.energy.gov/robots.txt",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=utf-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://genesis.energy.gov/sitemap.xml",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://genesis.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=utf-8"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://genesis.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=utf-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://genesis.energy.gov/favicon.ico",
            "found": true,
            "status": 200,
            "contentType": "image/vnd.microsoft.icon"
          }
        ],
        "recommendations": [
          {
            "title": "Add missing expected site files",
            "urgency": "high",
            "detail": "Missing expected file(s): /robots.txt."
          },
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /sitemap.xml, /.well-known/security.txt, /manifest.webmanifest."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 0,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 32024.45,
        "checks": {
          "hasEffectiveTextCompression": true
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "low",
            "estimatedSavingsBytes": 32024.45,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "low",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 31.27 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 6938847.45,
        "totalEstimatedBlockingMs": 319,
        "opportunities": [
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 6782256,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 6,623 KiB",
            "urgency": "high",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 76907,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 75 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 47660,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 47 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 319,
            "displayValue": "Est savings of 320 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 32024.45,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 31 KiB",
            "urgency": "low",
            "sourceAuditId": "modern-image-formats"
          }
        ],
        "recommendations": [
          {
            "title": "Lazy-load offscreen images",
            "urgency": "high",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 6.47 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "medium",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 75.10 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 46.54 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 319 ms."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "low",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 31.27 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 2,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 1,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "1 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 1308309.0383798883
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.25 MB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.25 MB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 0,
        "urgency": "medium",
        "transferBytes": 46768206,
        "css": {
          "unusedBytes": 0,
          "ratio": 0,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 76907,
          "duplicatedBytes": 0,
          "ratio": 0.0016444291234947092,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 76907,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 46768206,
        "estimatedDeferrableBytes": 6859163,
        "renderBlockingMs": 319,
        "breakdown": {
          "offscreenImageSavings": 6782256,
          "unusedJavascriptSavings": 76907,
          "unusedCssSavings": 0
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 6782256,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "medium",
            "estimatedSavingsBytes": 76907,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 319,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from genesis.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 6789946,
            "url": "https://genesis.energy.gov/videos/genesis_mission.gif",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from genesis.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 2731097,
            "url": "https://genesis.energy.gov/_next/static/chunks/app/(frontend)/page-56c4d6cf008424d7.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
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          {
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          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
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          "displayValue": "20.9 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
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        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
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          "displayValue": "16.8 s",
          "impact": "high",
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            "categoryId": "3",
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            "title": "Set goals based on performance and energy impact",
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        },
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          "displayValue": "Est savings of 75 KiB",
          "impact": "high",
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            "title": "Use dependencies appropriately and ensure maintenance",
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          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 75 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
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          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 320 ms",
          "impact": "high",
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          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 320 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "score": 0.5,
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          "impact": "medium",
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          "score": 0.5,
          "displayValue": "Est savings of 6,623 KiB",
          "impact": "medium",
          "wsg": {
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        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 45,670 KiB",
          "impact": "medium",
          "wsg": {
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          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 45,670 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          {
            "title": "No major form validation risks detected",
            "urgency": "low",
            "detail": "Continue testing form flows to ensure error handling remains clear across templates."
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          },
          {
            "title": "Eliminate render-blocking resources",
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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            "detail": "5 external script dependency URL(s) are missing SRI integrity attributes."
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        "score": 100,
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          },
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            "title": "Ensure critical routes work offline",
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            "detail": "Provide an offline fallback strategy for key pages and shell assets."
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          },
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            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
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              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
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          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
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            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
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        "urgency": "high",
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        "breakdown": {
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          "unusedCssSavings": 88327
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        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 905629,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88327,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 451,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
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              "categoryName": "Web Development",
              "id": "8",
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            "detail": "Core machine-readable metadata is present and no structural issues were detected."
          }
        ]
      },
      "layoutAdaptation": {
        "score": 36,
        "urgency": "medium",
        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 30,
          "tabletSmallTapTargets": 32,
          "fixedWidthOffenders": 3,
          "oversizedMedia": 0,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
            "viewportWidth": 390,
            "viewportHeight": 844,
            "contentWidth": 390,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 3,
            "smallTapTargets": 30,
            "oversizedMedia": 0
          },
          {
            "device": "tablet",
            "viewportWidth": 824,
            "viewportHeight": 1186,
            "contentWidth": 824,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 32,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "high",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 30 small targets on mobile and 32 on tablet."
          },
          {
            "title": "Refactor fixed-width components",
            "urgency": "medium",
            "detail": "3 element(s) exceeded viewport width in tested layouts; use responsive component constraints."
          }
        ]
      },
      "securityLight": {
        "score": 39,
        "urgency": "medium",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 5,
          "externalScriptsWithoutIntegrity": 5,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "age": "3037",
            "cache-control": "max-age=2764800, public",
            "cache-tags": "HIT",
            "content-language": "en",
            "content-security-policy": "",
            "date": "Sun, 22 Mar 2026 00:50:44 GMT",
            "etag": "\"1774135724:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
            "last-modified": "Sat, 21 Mar 2026 23:28:43 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"5fc2a623ac93c8b80de94dce77c69a41\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"-1487204629\"",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_3_sn_B6491CC18EEAEF71F619BECBFE2899FB_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "0F6it5uGbTLu-qtHne9aM-eAzMgcPgzCMy78HPiMOcyAcs8rJVOYWQ==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "11143637 10694153",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "5 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 1,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 84159,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "estimatedSavingsBytes": 71216,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "estimatedSavingsBytes": 7454,
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 1221255,
        "totalEstimatedBlockingMs": 451,
        "opportunities": [
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 905147,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 884 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88261,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 71216,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 70 KiB",
            "urgency": "medium",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 451,
            "displayValue": "Est savings of 450 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 883.93 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.19 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "medium",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 69.55 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 451 ms."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 10,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 5,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "5 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 483505.9178770948
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 472.17 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 472.17 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 5788228,
        "css": {
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          "ratio": 0.015248362711351384,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 905147,
          "duplicatedBytes": 0,
          "ratio": 0.15637721941844723,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88261,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 905147,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 10,
        "urgency": "high",
        "transferBytes": 5788228,
        "estimatedDeferrableBytes": 1056445,
        "renderBlockingMs": 451,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 905147,
          "unusedCssSavings": 88261
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 905147,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88261,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 451,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075219,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 7,
        "requestCount": 14,
        "transferBytes": 1224814,
        "notGreenCount": 4,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149743,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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          },
          {
            "title": "Defer non-critical JavaScript",
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            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
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      },
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
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              "hostedBy": "Google Cloud",
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                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
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            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
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          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.08,
          "displayValue": "6.6 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 6.6 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 885 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 885 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 70 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 70 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
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            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 1,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 84159,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "estimatedSavingsBytes": 71216,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "estimatedSavingsBytes": 7454,
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 1221487,
        "totalEstimatedBlockingMs": 453,
        "opportunities": [
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 905387,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 884 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88253,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 71216,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 70 KiB",
            "urgency": "medium",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 453,
            "displayValue": "Est savings of 450 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 884.17 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.18 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "medium",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 69.55 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 453 ms."
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        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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        "score": 10,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 5,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "5 external script dependency URL(s) are missing SRI integrity attributes."
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        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
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          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 483483.58715083764
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 472.15 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 472.15 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 5786615,
        "css": {
          "unusedBytes": 88253,
          "ratio": 0.01525123064174824,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 905387,
          "duplicatedBytes": 0,
          "ratio": 0.1564622840814535,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
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        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88253,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 905387,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 10,
        "urgency": "high",
        "transferBytes": 5786615,
        "estimatedDeferrableBytes": 1056677,
        "renderBlockingMs": 453,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 905387,
          "unusedCssSavings": 88253
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        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 905387,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88253,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 453,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075200,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
        "providerCount": 7,
        "requestCount": 14,
        "transferBytes": 1224996,
        "notGreenCount": 4,
        "unknownCount": 0,
        "scripts": [
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            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149922,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
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              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "modified": "2026-03-06T00:36:18",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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            "transferBytes": 26695,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
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              "status": "not-green",
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              "hostedBy": null,
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            "sampleUrl": "https://www.google-analytics.com/analytics.js",
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              "green": true,
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            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
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              "green": true,
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              "title": "Modularize bandwidth-heavy components",
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          "title": "Modularize bandwidth-heavy components",
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          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.25,
          "displayValue": "5.1 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.1 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 884 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 884 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 70 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 70 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 450 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 450 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.64,
          "displayValue": "5.0 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 5.0 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
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            "hasLabel": true,
            "hasValidationRule": false,
            "hasErrorMessagingHook": false,
            "toolingFriendly": true,
            "assessment": {
              "score": 50,
              "urgency": "medium",
              "issues": [
                "No explicit validation rule",
                "No error messaging hook"
              ],
              "recommendations": [
                "Define validation constraints (required, pattern, min/max, or semantic input type).",
                "Add aria-errormessage/aria-describedby and a visible error region for invalid input."
              ]
            },
            "reusedFromCache": false
          },
          {
            "signature": "form|post|/contact-us|input|email|email_address|no-autocomplete|optional|no-pattern|no-minlength",
            "role": "form",
            "controlType": "email",
            "fieldName": "email_address",
            "formContext": "form|post|/contact-us",
            "hasLabel": true,
            "hasValidationRule": true,
            "hasErrorMessagingHook": false,
            "toolingFriendly": false,
            "assessment": {
              "score": 30,
              "urgency": "medium",
              "issues": [
                "No error messaging hook",
                "Missing autocomplete for tooling support"
              ],
              "recommendations": [
                "Add aria-errormessage/aria-describedby and a visible error region for invalid input.",
                "Provide meaningful autocomplete values to support browsers and assistive tooling."
              ]
            },
            "reusedFromCache": false
          },
          {
            "signature": "form|post|/contact-us|textarea|textarea|mailing_address|no-autocomplete|optional|no-pattern|no-minlength",
            "role": "form",
            "controlType": "textarea",
            "fieldName": "mailing_address",
            "formContext": "form|post|/contact-us",
            "hasLabel": true,
            "hasValidationRule": false,
            "hasErrorMessagingHook": false,
            "toolingFriendly": true,
            "assessment": {
              "score": 50,
              "urgency": "medium",
              "issues": [
                "No explicit validation rule",
                "No error messaging hook"
              ],
              "recommendations": [
                "Define validation constraints (required, pattern, min/max, or semantic input type).",
                "Add aria-errormessage/aria-describedby and a visible error region for invalid input."
              ]
            },
            "reusedFromCache": false
          },
          {
            "signature": "form|post|/contact-us|input|text|fax_number|no-autocomplete|optional|no-pattern|no-minlength",
            "role": "form",
            "controlType": "text",
            "fieldName": "fax_number",
            "formContext": "form|post|/contact-us",
            "hasLabel": true,
            "hasValidationRule": true,
            "hasErrorMessagingHook": false,
            "toolingFriendly": false,
            "assessment": {
              "score": 30,
              "urgency": "medium",
              "issues": [
                "No error messaging hook",
                "Missing autocomplete for tooling support"
              ],
              "recommendations": [
                "Add aria-errormessage/aria-describedby and a visible error region for invalid input.",
                "Provide meaningful autocomplete values to support browsers and assistive tooling."
              ]
            },
            "reusedFromCache": false
          },
          {
            "signature": "form|post|/contact-us|input|text|url|off|optional|no-pattern|no-minlength",
            "role": "form",
            "controlType": "text",
            "fieldName": "url",
            "formContext": "form|post|/contact-us",
            "hasLabel": true,
            "hasValidationRule": true,
            "hasErrorMessagingHook": false,
            "toolingFriendly": false,
            "assessment": {
              "score": 30,
              "urgency": "medium",
              "issues": [
                "No error messaging hook",
                "Missing autocomplete for tooling support"
              ],
              "recommendations": [
                "Add aria-errormessage/aria-describedby and a visible error region for invalid input.",
                "Provide meaningful autocomplete values to support browsers and assistive tooling."
              ]
            },
            "reusedFromCache": false
          }
        ],
        "recommendations": [
          {
            "title": "No error messaging hook",
            "urgency": "medium",
            "detail": "11 unique form control signature(s) on this page include this issue."
          },
          {
            "title": "Missing autocomplete for tooling support",
            "urgency": "medium",
            "detail": "5 unique form control signature(s) on this page include this issue."
          },
          {
            "title": "No explicit validation rule",
            "urgency": "medium",
            "detail": "3 unique form control signature(s) on this page include this issue."
          }
        ]
      },
      "metadata": {
        "score": 25,
        "urgency": "low",
        "checks": {
          "hasTitle": true,
          "hasLang": true,
          "hasDescription": false,
          "hasCanonical": true,
          "hasOpenGraphCore": false,
          "hasTwitterCard": true,
          "hasViewport": true,
          "hasCharset": true,
          "hasValidStructuredData": true,
          "hasInvalidStructuredData": false
        },
        "observed": {
          "title": "Contact Us | Department of Energy",
          "lang": "en",
          "charset": "utf-8",
          "viewport": "width=device-width, initial-scale=1.0",
          "description": "",
          "robots": "",
          "canonical": "https://www.energy.gov/contact-us",
          "ogTitle": "Contact Us",
          "ogDescription": "",
          "ogType": "article",
          "ogUrl": "https://www.energy.gov/contact-us",
          "twitterCard": "summary_large_image",
          "ldJsonCount": 0,
          "validLdJsonCount": 0,
          "invalidLdJsonCount": 0
        },
        "recommendations": [
          {
            "title": "Add meta description",
            "urgency": "medium",
            "detail": "Provide a concise description to improve machine interpretation and preview quality."
          },
          {
            "title": "Complete Open Graph metadata",
            "urgency": "medium",
            "detail": "Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata."
          }
        ]
      },
      "layoutAdaptation": {
        "score": 30,
        "urgency": "medium",
        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 39,
          "tabletSmallTapTargets": 40,
          "fixedWidthOffenders": 0,
          "oversizedMedia": 0,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
            "viewportWidth": 390,
            "viewportHeight": 844,
            "contentWidth": 390,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 39,
            "oversizedMedia": 0
          },
          {
            "device": "tablet",
            "viewportWidth": 820,
            "viewportHeight": 1180,
            "contentWidth": 820,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 40,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "high",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 39 small targets on mobile and 40 on tablet."
          }
        ]
      },
      "securityLight": {
        "score": 39,
        "urgency": "medium",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 5,
          "externalScriptsWithoutIntegrity": 5,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "age": "623",
            "cache-control": "max-age=2764800, public",
            "cache-tags": "HIT",
            "content-language": "en",
            "content-security-policy": "",
            "date": "Sun, 22 Mar 2026 00:51:28 GMT",
            "etag": "\"1774105744:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
            "last-modified": "Sat, 21 Mar 2026 15:09:03 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"6fe47cf3a3ed71da829c80086e9db855\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"1937056005\"",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_2_sn_BFC2833211A042245A3CAD72AD061BCE_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "wHBmf4pFa-G7papKUjslWcBlUAgrfM-9BCWf7J6yjpzi4SuuxTLjjQ==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "UNCACHEABLE (poor cacheability)",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "11143714 10950517",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "5 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 1,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 84162,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "estimatedSavingsBytes": 71216,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "estimatedSavingsBytes": 7457,
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 1351713,
        "totalEstimatedBlockingMs": 326,
        "opportunities": [
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 1098529,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,073 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88371,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 71216,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 70 KiB",
            "urgency": "medium",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 326,
            "displayValue": "Est savings of 330 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7457,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 1.05 MB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.30 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "medium",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 69.55 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 326 ms."
          },
          {
            "title": "Minify JavaScript",
            "urgency": "low",
            "detail": "Use minified production JS output to reduce payload size. Estimated byte savings: 7.28 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 10,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 5,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "5 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 487091.79189944104
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 475.68 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 475.68 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 6325370,
        "css": {
          "unusedBytes": 88371,
          "ratio": 0.013970882335736881,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 1098529,
          "duplicatedBytes": 0,
          "ratio": 0.17367031493809848,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88371,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 1098529,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 9,
        "urgency": "high",
        "transferBytes": 6325370,
        "estimatedDeferrableBytes": 1186900,
        "renderBlockingMs": 326,
        "breakdown": {
          "offscreenImageSavings": 0,
          "unusedJavascriptSavings": 1098529,
          "unusedCssSavings": 88371
        },
        "candidates": [
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 1098529,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
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            "title": "No major form validation risks detected",
            "urgency": "low",
            "detail": "Continue testing form flows to ensure error handling remains clear across templates."
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            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
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          },
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          },
          {
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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            "title": "Add integrity attributes for external dependencies",
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            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "score": 100,
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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            "detail": "Provide an offline fallback strategy for key pages and shell assets."
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
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            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
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            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 186.89 KB)."
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          },
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            "estimatedSavingsBytes": 87772,
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              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 913981,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
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      "nonCriticalResources": {
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        "urgency": "high",
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        "estimatedDeferrableBytes": 1264598,
        "renderBlockingMs": 212,
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          "unusedJavascriptSavings": 913981,
          "unusedCssSavings": 87772
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        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 262845,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 913981,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87772,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "medium",
            "estimatedSavingsBytes": 195948,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/2025-04/white-fallback_0.png",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
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          "categoryId": "3",
          "categoryName": "Web Development",
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          "title": "Modularize bandwidth-heavy components",
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      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.2,
          "displayValue": "5.4 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.4 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 893 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 625 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 625 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 210 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 210 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 66 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
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          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 66 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 257 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
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        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 2,830 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
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            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 2,830 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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      "co2Grams": 2.2326543290844003,
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        },
        "observed": {
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          "charset": "utf-8",
          "viewport": "width=device-width, initial-scale=1.0",
          "description": "Freedom of Information Act (FOIA) at the Department of Energy",
          "robots": "",
          "canonical": "https://www.energy.gov/gc/freedom-information-act",
          "ogTitle": "Freedom of Information Act",
          "ogDescription": "Freedom of Information Act (FOIA) at the Department of Energy",
          "ogType": "article",
          "ogUrl": "https://www.energy.gov/gc/freedom-information-act",
          "twitterCard": "summary_large_image",
          "ldJsonCount": 0,
          "validLdJsonCount": 0,
          "invalidLdJsonCount": 0
        },
        "recommendations": [
          {
            "title": "Metadata structure looks healthy",
            "urgency": "low",
            "detail": "Core machine-readable metadata is present and no structural issues were detected."
          }
        ]
      },
      "layoutAdaptation": {
        "score": 30,
        "urgency": "medium",
        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 31,
          "tabletSmallTapTargets": 37,
          "fixedWidthOffenders": 0,
          "oversizedMedia": 0,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
            "viewportWidth": 390,
            "viewportHeight": 844,
            "contentWidth": 390,
            "horizontalOverflowPx": 0,
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            "fixedWidthOffenders": 0,
            "smallTapTargets": 31,
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          },
          {
            "device": "tablet",
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            "viewportHeight": 1180,
            "contentWidth": 820,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 37,
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          }
        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "high",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 31 small targets on mobile and 37 on tablet."
          }
        ]
      },
      "securityLight": {
        "score": 37,
        "urgency": "medium",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 4,
          "externalScriptsWithoutIntegrity": 4,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "age": "0",
            "cache-control": "max-age=2764800, public",
            "cache-tags": "HIT",
            "content-language": "en",
            "content-security-policy": "",
            "date": "Sun, 22 Mar 2026 00:51:57 GMT",
            "etag": "\"1774134437:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
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            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"7c43571cab59358a9c7e35375f578a9e\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"-1455578772\"",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_2_sn_C87C3D6F63A79D26D882095D9D17FA4E_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "2kJi5EkI1ju2EN2u9ldcq0TH-eYGMmDNhDTKiXL8rUoqTgxH4YAQsQ==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "9616049 10136520",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
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        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
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          "hasEffectiveTextCompression": false
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          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
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            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
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            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
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            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
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        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 97.15 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
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        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 1188439.25,
        "totalEstimatedBlockingMs": 341,
        "opportunities": [
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 906594,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 885 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 99483.25,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 97 KiB",
            "urgency": "medium",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 87 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
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            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 341,
            "displayValue": "Est savings of 340 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
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            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
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        ],
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            "title": "Remove unused JavaScript",
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          },
          {
            "title": "Serve images in next-gen formats",
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          },
          {
            "title": "Remove unused CSS",
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            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.69 KB."
          },
          {
            "title": "Right-size images for viewport",
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            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
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            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 341 ms."
          },
          {
            "title": "Minify JavaScript",
            "urgency": "low",
            "detail": "Use minified production JS output to reduce payload size. Estimated byte savings: 7.28 KB."
          }
        ]
      },
      "dependencyMaintenance": {
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          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
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            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 487943.359776536
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 476.51 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 476.51 KB)."
          }
        ]
      },
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "urgency": "low",
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        "outdatedTechnologies": [],
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            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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        ]
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        "urgency": "high",
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          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
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        "recommendations": [
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            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88768,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 906594,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 5828146,
        "estimatedDeferrableBytes": 995362,
        "renderBlockingMs": 341,
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          "offscreenImageSavings": 0,
          "unusedJavascriptSavings": 906594,
          "unusedCssSavings": 88768
        },
        "candidates": [
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 906594,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88768,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 341,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075219,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224823,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149749,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
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          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 87 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "score": 0,
          "displayValue": "Est savings of 97 KiB",
          "impact": "high",
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            "title": "Optimize media to reduce resource use",
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      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 3649392,
        "totalEstimatedBlockingMs": 320,
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 1288042,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,258 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 914341,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 893 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 816043,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 797 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 350550,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 342 KiB",
            "urgency": "high",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 179083,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 175 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88390,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 320,
            "displayValue": "Est savings of 320 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.23 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.91 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 796.92 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "high",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 342.33 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "medium",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 174.89 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.32 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 636410.913407821
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 621.50 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 621.50 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 6,
        "urgency": "high",
        "transferBytes": 7344804,
        "css": {
          "unusedBytes": 88390,
          "ratio": 0.012034357894369952,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 914341,
          "duplicatedBytes": 0,
          "ratio": 0.1244881415487738,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
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        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88390,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 914341,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 9,
        "urgency": "high",
        "transferBytes": 7344804,
        "estimatedDeferrableBytes": 1353281,
        "renderBlockingMs": 320,
        "breakdown": {
          "offscreenImageSavings": 350550,
          "unusedJavascriptSavings": 914341,
          "unusedCssSavings": 88390
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        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 350550,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914341,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88390,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 320,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075234,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1225002,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
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            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149928,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "modified": "2026-03-06T00:36:18",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
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          },
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            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "modified": "2026-03-21T20:44:41.287420",
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            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20792,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
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                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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            "transferBytes": 17244,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
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              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
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                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
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              "status": "not-green",
              "green": false,
              "hostedBy": null,
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            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
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        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 18,
        "urgency": "high",
        "transferBytes": 7344804,
        "estimatedRedundantBytes": 1002731,
        "redundancyRatio": 0.13652249944314376,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 914341,
            "displayValue": "Est savings of 893 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 88390,
            "displayValue": "Est savings of 86 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914341,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 88390,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
      },
      "modularization": {
        "score": 51,
        "urgency": "high",
        "totalTransferBytes": 7344804,
        "heavyRequestCount": 20,
        "heavyBytes": 6890951,
        "heavyRatio": 0.9382076090798338,
        "heavyRequests": [
          {
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            "transferSize": 1075234,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
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            "transferSize": 859419,
            "resourceType": "script",
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            "domain": "www.energy.gov"
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            "transferSize": 815426,
            "resourceType": "script",
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            "transferSize": 555287,
            "resourceType": "image",
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            "domain": "www.energy.gov"
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            "url": "https://www.energy.gov/themes/custom/energy_gov/img/homepage-hero.jpg",
            "transferSize": 306648,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
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            "url": "https://www.energy.gov/themes/custom/energy_gov/img/Photo-FallBackImage-new.png",
            "transferSize": 288503,
            "resourceType": "image",
            "mimeType": "image/png",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/brands.js",
            "transferSize": 219307,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "transferSize": 159221,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-MFMY1F6D3V&cx=c&gtm=4e63i0",
            "transferSize": 158542,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "transferSize": 157561,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e63i0",
            "transferSize": 148120,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L",
            "transferSize": 148107,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-WZQX9F4",
            "transferSize": 136245,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-PCSS9JS&gtm_auth=rQjC8QLyy7zCI51ldZjEbA&gtm_preview=env-3&gtm_cookies_win=x",
            "transferSize": 126337,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=UA-17192165-1&cx=c&gtm=4e63i0",
            "transferSize": 115795,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/js/js_zKKF6aMALZ8I4xNBLCovOiSmbp8brvk35JuqYftzvUo.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJxtjUEOwjAMBD9U4Qv_iUxipVYtJ7JNIL-nhwYuHHd3RlswUHCSwYN2HNzMN1KyOhMqygzODhXviQZppDDMB2v9w7RWhX7FInLTOE24Ir1DWI-11jYA3Sm-vBNa3gF73y4Wij07ym2pzkEvLueXkAWwcnwAqu9OzQ",
            "transferSize": 98295,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
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            "url": "https://www.energy.gov/sites/default/files/css/css_O5fVRBFfj6fhEreA1DF4tUTO_NSTGRwryb9guQTJH-o.css?delta=1&language=en&theme=energy_gov&include=eJxNi0EKwzAMBD8k4icFJV4cUdU2ktwkvy-Fmva2M8PuzZCyjc66ZGFthVBh5V73T_nb05f2SuyOcMIVKvUx_1-kzsbFuB8-y88so_axqfiBTC6BUzJWVlgkqRLktweeaWPHG8iYPWM",
            "transferSize": 91957,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "script",
            "count": 15,
            "transferBytes": 5249385
          },
          {
            "resourceType": "image",
            "count": 4,
            "transferBytes": 1549609
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91957
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 12,
            "transferBytes": 5741023
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149928
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 350550,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 914341,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 1075234,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.01,
          "displayValue": "9.0 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 9.0 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 893 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,258 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,258 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 175 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 175 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 342 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 342 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 320 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 320 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "server-response-time",
          "title": "Reduce initial server response time",
          "description": "Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).",
          "score": 0,
          "displayValue": "Root document took 940 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "4",
            "categoryName": "Hosting, Infrastructure, and Systems",
            "id": "11",
            "title": "Ensure infrastructure fits project requirements",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements",
            "subheading": "Maintain the infrastructure you require rather than over-provisioning. Autoscale to meet demand and preserve hardware resources."
          },
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            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 78385,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 77 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 317,
            "displayValue": "Est savings of 320 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 892.25 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 243.76 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.80 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 76.55 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 317 ms."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 512877.42905027885
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 500.86 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 500.86 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 7,
        "urgency": "high",
        "transferBytes": 6084168,
        "css": {
          "unusedBytes": 87862,
          "ratio": 0.01444108709687175,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 913664,
          "duplicatedBytes": 0,
          "ratio": 0.15017073821761662,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87862,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 913664,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 6084168,
        "estimatedDeferrableBytes": 1079911,
        "renderBlockingMs": 317,
        "breakdown": {
          "offscreenImageSavings": 78385,
          "unusedJavascriptSavings": 913664,
          "unusedCssSavings": 87862
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 78385,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 913664,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87862,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 317,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075497,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224841,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149765,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
            }
          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20792,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
                {
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                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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            }
          },
          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17245,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
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                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
              "error": null
            }
          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9499,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
              "error": null
            }
          },
          {
            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
              "error": null
            }
          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 19,
        "urgency": "high",
        "transferBytes": 6084168,
        "estimatedRedundantBytes": 1001526,
        "redundancyRatio": 0.16461182531448837,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 913664,
            "displayValue": "Est savings of 892 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 87862,
            "displayValue": "Est savings of 86 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 913664,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 87862,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
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              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
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          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 78385,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 913664,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
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            "title": "Modularize heavy script asset from www.energy.gov",
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            "wsg": {
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              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
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        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.17,
          "displayValue": "5.6 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.6 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 892 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 892 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 244 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 244 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 77 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 77 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 320 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 320 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 5,942 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 5,942 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
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      "bestPracticesScore": 0.79,
      "transferBytes": 2151587,
      "co2Grams": 0.8242329601817999,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149760,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
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                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
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            "area": "javascript",
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            "title": "Evaluate deferred loading for heavy script from www.googletagmanager.com",
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          },
          {
            "title": "Reduce third-party script payload and requests",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
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            }
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            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
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              "categoryId": "3",
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            }
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            "title": "Modularize heavy script asset from www.energy.gov",
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            }
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              "categoryId": "3",
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          "categoryId": "3",
          "categoryName": "Web Development",
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          "title": "Modularize bandwidth-heavy components",
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      "findings": [
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          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 900 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 900 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 97 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 97 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 260 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 260 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.79,
          "displayValue": "2.9 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 2.9 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
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            "title": "Metadata structure looks healthy",
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            "detail": "Core machine-readable metadata is present and no structural issues were detected."
          }
        ]
      },
      "layoutAdaptation": {
        "score": 30,
        "urgency": "medium",
        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 34,
          "tabletSmallTapTargets": 38,
          "fixedWidthOffenders": 0,
          "oversizedMedia": 0,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
            "viewportWidth": 405,
            "viewportHeight": 875,
            "contentWidth": 405,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 34,
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          },
          {
            "device": "tablet",
            "viewportWidth": 820,
            "viewportHeight": 1180,
            "contentWidth": 820,
            "horizontalOverflowPx": 0,
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            "smallTapTargets": 38,
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          }
        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "high",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 34 small targets on mobile and 38 on tablet."
          }
        ]
      },
      "securityLight": {
        "score": 37,
        "urgency": "medium",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
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          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 4,
          "externalScriptsWithoutIntegrity": 4,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "accept-ranges": "bytes",
            "age": "0",
            "cache-control": "max-age=2764800, public",
            "cache-tags": "MISS",
            "content-encoding": "gzip",
            "content-language": "en",
            "content-length": "25512",
            "content-security-policy": "",
            "content-type": "text/html; charset=UTF-8",
            "date": "Sun, 22 Mar 2026 00:52:56 GMT",
            "etag": "\"1774140775:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
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            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"9f47eb83fc2bfa8e6de3cfcc4adfe565\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"-1146757268\"",
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            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "_eBlth6HE__xwLbS70O-o9fhZVJ1Oi_14mSJ4SHxrBlbrLqSQ66BYQ==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "MISS",
            "x-drupal-dynamic-cache": "UNCACHEABLE (poor cacheability)",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "10136567",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
          }
        ]
      },
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        "score": 30,
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        "origin": "https://www.energy.gov",
        "checks": [
          {
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            "url": "https://www.energy.gov/robots.txt",
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          {
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            "url": "https://www.energy.gov/sitemap.xml",
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            "contentType": "application/xml; charset=utf-8"
          },
          {
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            "status": 403,
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          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
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            "contentType": "text/html; charset=UTF-8"
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          {
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            "url": "https://www.energy.gov/favicon.ico",
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            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
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          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
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            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
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            "title": "Enable Brotli/gzip for text assets",
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          }
        ],
        "recommendations": [
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            "title": "Use modern image compression formats",
            "urgency": "medium",
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          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
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        "urgency": "high",
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        "opportunities": [
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            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
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            "estimatedBlockingMs": 0,
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            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 99483.25,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 97 KiB",
            "urgency": "medium",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
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            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
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            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 338,
            "displayValue": "Est savings of 340 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
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            "sourceAuditId": "uses-text-compression"
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        ],
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            "title": "Remove unused JavaScript",
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          {
            "title": "Serve images in next-gen formats",
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            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 97.15 KB."
          },
          {
            "title": "Remove unused CSS",
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            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.48 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
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            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 338 ms."
          },
          {
            "title": "Minify JavaScript",
            "urgency": "low",
            "detail": "Use minified production JS output to reduce payload size. Estimated byte savings: 7.28 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
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            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
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          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 487958.89776536287
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 476.52 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 476.52 KB)."
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        ]
      },
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "urgency": "low",
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            "title": "No obvious outdated runtime version disclosed",
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            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
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            "estimatedSavingsBytes": 88556,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 907211,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
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              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
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        ],
        "wsg": {
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          "categoryName": "Web Development",
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          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
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        "urgency": "high",
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        "candidates": [
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 907211,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88556,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 338,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075244,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
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          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1225432,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
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            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1150354,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
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                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
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          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "score": 0,
          "displayValue": "Est savings of 97 KiB",
          "impact": "high",
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            "title": "Optimize media to reduce resource use",
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            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 97 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
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        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "estimatedSavingsBytes": 99483.25,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "estimatedSavingsBytes": 7454,
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 97.15 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 1258712.25,
        "totalEstimatedBlockingMs": 323,
        "opportunities": [
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 914050,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 893 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 99483.25,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 97 KiB",
            "urgency": "medium",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88548,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 323,
            "displayValue": "Est savings of 320 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
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          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
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          {
            "title": "Serve images in next-gen formats",
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            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 97.15 KB."
          },
          {
            "title": "Remove unused CSS",
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            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.47 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Lazy-load offscreen images",
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            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 323 ms."
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        "urgency": "medium",
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        "recommendations": [
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            "title": "Add integrity attributes for external dependencies",
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            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          {
            "id": "works-offline",
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            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
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          {
            "id": "installable-manifest",
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            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
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            "id": "uses-long-cache-ttl",
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            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 476.51 KB)."
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        ],
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            "title": "Add service worker support",
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 476.51 KB)."
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        ]
      },
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        "wsgReference": {
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "urgency": "low",
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          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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        ]
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      "deadCode": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 5831019,
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          "unusedBytes": 88548,
          "ratio": 0.015185681953703118,
          "auditId": "unused-css-rules"
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        "javascript": {
          "unusedBytes": 914050,
          "duplicatedBytes": 0,
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          "auditIds": [
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          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
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        "recommendations": [
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            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
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            "estimatedSavingsBytes": 88548,
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              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
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            "wsg": {
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              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
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            "title": "Lazy-load offscreen images",
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          },
          {
            "title": "Defer non-critical JavaScript",
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            "strategy": "Split bundles and load feature code on interaction or route transition.",
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              "categoryId": "3",
              "categoryName": "Web Development",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88548,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 323,
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
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            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075209,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
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            "wsg": {
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              "categoryName": "Web Development",
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              "title": "Defer the loading of non-critical resources",
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          "categoryName": "Web Development",
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          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "urgency": "high",
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        "transferBytes": 1225090,
        "notGreenCount": 3,
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              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
              "error": null
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          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
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      "redundancy": {
        "score": 19,
        "urgency": "high",
        "transferBytes": 5831019,
        "estimatedRedundantBytes": 1002598,
        "redundancyRatio": 0.17194215968083795,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 914050,
            "displayValue": "Est savings of 893 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 88548,
            "displayValue": "Est savings of 86 KiB"
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        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914050,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
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          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 88548,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
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          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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        "score": 50,
        "urgency": "high",
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            "resourceType": "script",
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            "transferSize": 219332,
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            "transferSize": 159221,
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            "domain": "www.googletagmanager.com"
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            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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            "url": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "transferSize": 157566,
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            "transferSize": 148351,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e63i0",
            "transferSize": 148120,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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          {
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            "transferSize": 136245,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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            "transferSize": 126169,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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            "transferSize": 115795,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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            "transferSize": 98298,
            "resourceType": "script",
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            "transferSize": 91955,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "script",
            "count": 15,
            "transferBytes": 5249675
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91955
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 8,
            "transferBytes": 4191621
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1150009
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 914050,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 1075209,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.16,
          "displayValue": "5.7 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.7 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 893 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 97 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 97 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 62 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 320 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 320 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.75,
          "displayValue": "4.4 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 4.4 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
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            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 885.33 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "medium",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 97.15 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.08 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 332 ms."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 487964.5793296087
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 476.53 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 476.53 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 5829533,
        "css": {
          "unusedBytes": 88143,
          "ratio": 0.01512007908695259,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 906576,
          "duplicatedBytes": 0,
          "ratio": 0.15551434394487518,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88143,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 906576,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 9,
        "urgency": "high",
        "transferBytes": 5829533,
        "estimatedDeferrableBytes": 1057756,
        "renderBlockingMs": 332,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 906576,
          "unusedCssSavings": 88143
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 906576,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88143,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 332,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075488,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224836,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149755,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26694,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
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          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20793,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17249,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
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                  "link": "https://sustainability.google"
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
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          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9498,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
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          },
          {
            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
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          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 19,
        "urgency": "high",
        "transferBytes": 5829533,
        "estimatedRedundantBytes": 994719,
        "redundancyRatio": 0.17063442303182777,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 906576,
            "displayValue": "Est savings of 885 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 88143,
            "displayValue": "Est savings of 86 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 906576,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
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            "estimatedSavingsBytes": 88143,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
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            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
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          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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        "urgency": "high",
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        "heavyRequestCount": 16,
        "heavyBytes": 5341486,
        "heavyRatio": 0.9162802577839425,
        "heavyRequests": [
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      "findings": [
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          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.16,
          "displayValue": "5.7 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.7 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 885 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 885 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 97 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 97 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 62 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 330 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 330 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.68,
          "displayValue": "4.8 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 4.8 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 5,693 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 5,693 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
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      "status": "ok",
      "finalUrl": "https://www.energy.gov/web-policies",
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      "bestPracticesScore": 0.79,
      "transferBytes": 5832822,
      "co2Grams": 2.2344456177108003,
      "greenWeb": {
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          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
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          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
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          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [
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            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1150349,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
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              "modified": "2026-03-06T00:36:18",
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          {
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            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
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            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          },
          {
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            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 324 ms."
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "score": 100,
        "urgency": "high",
        "checks": {
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          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 487955.40726256964
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        "opportunities": [
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            "id": "service-worker",
            "title": "Add service worker support",
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
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            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
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            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 476.52 KB)."
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        ],
        "recommendations": [
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            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
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            "title": "Ensure critical routes work offline",
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            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
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            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
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            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 476.52 KB)."
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "urgency": "low",
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        "urgency": "high",
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            "title": "Lazy-load offscreen images and media galleries",
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              "categoryId": "3",
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            }
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          {
            "title": "Defer non-critical UI modules until after first render",
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            "estimatedSavingsBytes": 0,
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              "categoryId": "3",
              "categoryName": "Web Development",
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            "title": "Modularize heavy script asset from www.energy.gov",
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          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
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          "displayValue": "5.7 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.7 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
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          "displayValue": "Est savings of 892 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 892 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 97 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
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            "title": "Optimize media to reduce resource use",
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            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 97 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0,
          "displayValue": "Est savings of 62 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Modularize bandwidth-heavy components",
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          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 320 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Use the most efficient solution for your service",
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            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
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        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.8,
          "displayValue": "4.1 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 4.1 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 5,696 KiB",
          "impact": "medium",
          "wsg": {
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            "categoryName": "Business Strategy And Product Management",
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            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 5,696 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
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      "transferBytes": 5790212,
      "co2Grams": 2.2181225192568,
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              "error": null
            }
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              "green": false,
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              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
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          },
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            "hostname": "s7.addthis.com",
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            "transferBytes": 0,
            "sampleUrl": "https://s7.addthis.com/js/300/addthis_widget.js",
            "greenCheck": {
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              "status": "not-green",
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              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-22T00:48:49.278763",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/s7.addthis.com",
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          "pageStatus": "not-green",
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        "urgency": "low",
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        "reusedFromCacheCount": 0,
        "components": [],
        "recommendations": [
          {
            "title": "No major form validation risks detected",
            "urgency": "low",
            "detail": "Continue testing form flows to ensure error handling remains clear across templates."
          }
        ]
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        "urgency": "low",
        "checks": {
          "hasTitle": true,
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            "cache-tags": "HIT",
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            "server": "Apache",
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            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
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            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
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          "vulnerableLibrariesAuditScore": null,
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            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
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            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
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            "title": "Add SRI to external scripts",
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        "recommendations": [
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            "title": "Use modern image compression formats",
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          },
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            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
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          }
        ]
      },
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        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
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        "urgency": "high",
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        "opportunities": [
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            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
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            "estimatedBlockingMs": 0,
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            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "unused-css-rules",
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            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 87 KiB",
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            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
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            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
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          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
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            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
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          {
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          },
          {
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          },
          {
            "title": "Serve images in next-gen formats",
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            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 69.55 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
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            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 454 ms."
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        ]
      },
      "dependencyMaintenance": {
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          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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        "urgency": "medium",
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        "vulnerableLibraries": [],
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        "recommendations": [
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            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "5 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
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      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "score": 100,
        "urgency": "high",
        "checks": {
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          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 483478.18156424543
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            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
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            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
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            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 472.15 KB)."
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        ],
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            "title": "Add service worker support",
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          },
          {
            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
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        "urgency": "low",
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          "auditIds": [
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          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
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        "recommendations": [
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            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88710,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 907847,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 10,
        "urgency": "high",
        "transferBytes": 5790212,
        "estimatedDeferrableBytes": 1059594,
        "renderBlockingMs": 454,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 907847,
          "unusedCssSavings": 88710
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 907847,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88710,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
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          "title": "Largest Contentful Paint",
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          "impact": "high",
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            "categoryId": "3",
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          "impact": "high",
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            "categoryName": "Web Development",
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            "title": "Use dependencies appropriately and ensure maintenance",
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            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
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          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 887 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "displayValue": "Est savings of 70 KiB",
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          "wsg": {
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            "categoryId": "3",
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          "auditId": "offscreen-images",
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          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
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          "score": 0.5,
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          "impact": "medium",
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            "categoryId": "3",
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            "title": "Remove unnecessary or redundant information",
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            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
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          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 5,655 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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        },
        "perDevice": [
          {
            "device": "mobile",
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            "viewportHeight": 844,
            "contentWidth": 390,
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            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 3,
            "smallTapTargets": 27,
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          },
          {
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            "contentWidth": 820,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 28,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "high",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 27 small targets on mobile and 28 on tablet."
          },
          {
            "title": "Refactor fixed-width components",
            "urgency": "medium",
            "detail": "3 element(s) exceeded viewport width in tested layouts; use responsive component constraints."
          }
        ]
      },
      "securityLight": {
        "score": 37,
        "urgency": "medium",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 4,
          "externalScriptsWithoutIntegrity": 4,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "age": "11",
            "cache-control": "max-age=2764800, public",
            "cache-tags": "HIT",
            "content-language": "en",
            "content-security-policy": "",
            "date": "Sun, 22 Mar 2026 00:54:03 GMT",
            "etag": "\"1774134384:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
            "last-modified": "Sat, 21 Mar 2026 23:06:23 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"49525422a45fdb299df8b8a5b07d2cfe\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"-138725501\"",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_1_sn_54F5F0FDACF3E0A550B4A3099166BA07_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "j1AIs5b44hjM9whSOno0m8zaCWRc7jdUj4tj4k3tPC2wJtrQE6wDQg==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "9530195 10141916",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
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            "contentType": "text/html; charset=iso-8859-1"
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        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
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            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
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          {
            "id": "modern-image-formats",
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            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
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            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 97.15 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 1180543.25,
        "totalEstimatedBlockingMs": 251,
        "opportunities": [
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 906148,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 885 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 99483.25,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 97 KiB",
            "urgency": "medium",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88772,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 87 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 251,
            "displayValue": "Est savings of 250 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 884.91 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "medium",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 97.15 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.69 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Enable text compression",
            "urgency": "low",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 5.36 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "low",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 251 ms."
          }
        ]
      },
      "dependencyMaintenance": {
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          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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        "urgency": "medium",
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        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
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            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 127292.11117318433
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 124.31 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 124.31 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 20,
        "urgency": "high",
        "transferBytes": 2149550,
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          "auditId": "unused-css-rules"
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            "duplicated-javascript"
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        },
        "html": {
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          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
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            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88772,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
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            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
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        "urgency": "high",
        "transferBytes": 2149550,
        "estimatedDeferrableBytes": 994920,
        "renderBlockingMs": 251,
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          "offscreenImageSavings": 0,
          "unusedJavascriptSavings": 906148,
          "unusedCssSavings": 88772
        },
        "candidates": [
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 906148,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88772,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 251,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348766,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.googletagmanager.com",
            "area": "script",
            "urgency": "medium",
            "estimatedSavingsBytes": 159221,
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224846,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149761,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26694,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
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          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.2,
          "displayValue": "5.4 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.4 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 885 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 885 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 87 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 87 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 97 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 97 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 250 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
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            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 339,
            "displayValue": "Est savings of 340 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 894.50 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 427.66 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "medium",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 187.21 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.45 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 339 ms."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 531291.8622905024
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 518.84 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 518.84 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 7,
        "urgency": "high",
        "transferBytes": 6270958,
        "css": {
          "unusedBytes": 88521,
          "ratio": 0.01411602501563557,
          "auditId": "unused-css-rules"
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        "javascript": {
          "unusedBytes": 915967,
          "duplicatedBytes": 0,
          "ratio": 0.1460649234136156,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
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        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88521,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 915967,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 6270958,
        "estimatedDeferrableBytes": 1004488,
        "renderBlockingMs": 339,
        "breakdown": {
          "offscreenImageSavings": 0,
          "unusedJavascriptSavings": 915967,
          "unusedCssSavings": 88521
        },
        "candidates": [
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 915967,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88521,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 339,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075229,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224850,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149765,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
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                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26694,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
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          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20793,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
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                  "link": "https://sustainability.google"
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                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17253,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
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                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
              "error": null
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          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9498,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
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          },
          {
            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
              "error": null
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        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 19,
        "urgency": "high",
        "transferBytes": 6270958,
        "estimatedRedundantBytes": 1004488,
        "redundancyRatio": 0.16018094842925115,
        "relatedAuditIds": [
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          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 915967,
            "displayValue": "Est savings of 894 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 88521,
            "displayValue": "Est savings of 86 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 915967,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
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            "estimatedSavingsBytes": 88521,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
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            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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        "urgency": "high",
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        "heavyRequestCount": 18,
        "heavyBytes": 5748399,
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          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.03,
          "displayValue": "7.8 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 7.8 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 894 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 894 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 428 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 428 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 187 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
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            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 187 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 340 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 340 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 6,124 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 6,124 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
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      "co2Grams": 0.8237832226182,
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            "id": "offline-start-url",
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            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 27,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 2189100.6,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "estimatedSavingsBytes": 1629776.6,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "estimatedSavingsBytes": 546381,
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings."
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "estimatedSavingsBytes": 7454,
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.55 MB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 533.58 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 4519233.6,
        "totalEstimatedBlockingMs": 311,
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 1629776.6,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,592 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 975385,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 953 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 914617,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 893 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 546381,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 534 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 352728,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 344 KiB",
            "urgency": "high",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87403,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 85 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 311,
            "displayValue": "Est savings of 310 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.55 MB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 952.52 KB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 893.18 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 533.58 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "high",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 344.46 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.35 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 708331.6156424574
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 691.73 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 691.73 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 8084790,
        "css": {
          "unusedBytes": 87403,
          "ratio": 0.010810794096074234,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 914617,
          "duplicatedBytes": 0,
          "ratio": 0.11312810846045475,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0.125,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87403,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 914617,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 8084790,
        "estimatedDeferrableBytes": 1354748,
        "renderBlockingMs": 311,
        "breakdown": {
          "offscreenImageSavings": 352728,
          "unusedJavascriptSavings": 914617,
          "unusedCssSavings": 87403
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 352728,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914617,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87403,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 311,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075480,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 705537,
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2018/07/f53/Women%20Workers%20Shift%20Change%20Y-12_0_2.jpg?itok=23usXwSJ",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1225110,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1150023,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
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                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
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          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20793,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
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          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "9.5 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 9.5 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 893 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 85 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 85 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,592 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
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            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 22,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 623838.05,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "estimatedSavingsBytes": 566454.05,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
            "urgency": "medium",
            "estimatedSavingsBytes": 51895,
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 553.18 KB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "medium",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 50.68 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 2309210.05,
        "totalEstimatedBlockingMs": 217,
        "opportunities": [
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 908100,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 887 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 566454.05,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 553 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 430778,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 421 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 258121,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 252 KiB",
            "urgency": "high",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88373,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 51895,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 51 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 217,
            "displayValue": "Est savings of 220 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.82 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 553.18 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 420.68 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "high",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 252.07 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.30 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "medium",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 50.68 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 192067.51508379882
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 187.57 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 187.57 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 16,
        "urgency": "high",
        "transferBytes": 2813353,
        "css": {
          "unusedBytes": 88373,
          "ratio": 0.031411984205323686,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 908100,
          "duplicatedBytes": 0,
          "ratio": 0.32278210377439304,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88373,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 908100,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 16,
        "urgency": "high",
        "transferBytes": 2813353,
        "estimatedDeferrableBytes": 1254594,
        "renderBlockingMs": 217,
        "breakdown": {
          "offscreenImageSavings": 258121,
          "unusedJavascriptSavings": 908100,
          "unusedCssSavings": 88373
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 258121,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 908100,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88373,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 217,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348762,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 246886,
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/FR-EinsteinSzilard.jpg?itok=UkAxaIpr",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224853,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149765,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26694,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
            }
          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20793,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
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                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
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          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.23,
          "displayValue": "5.2 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.2 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 887 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 887 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 553 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 553 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 51 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
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            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 509.78 KB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "medium",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 54.95 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 2194261.85,
        "totalEstimatedBlockingMs": 233,
        "opportunities": [
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 907638,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 886 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 522015.85,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 510 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 356360,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 348 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 258121,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 252 KiB",
            "urgency": "high",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88373,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 56265,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 55 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 233,
            "displayValue": "Est savings of 230 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.37 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 509.78 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 348.01 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "high",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 252.07 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.30 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "medium",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 54.95 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 182669.45279329602
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 178.39 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 178.39 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 16,
        "urgency": "high",
        "transferBytes": 2717417,
        "css": {
          "unusedBytes": 88373,
          "ratio": 0.032520956481835506,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 907638,
          "duplicatedBytes": 0,
          "ratio": 0.3340076256238921,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88373,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 907638,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 16,
        "urgency": "high",
        "transferBytes": 2717417,
        "estimatedDeferrableBytes": 1254132,
        "renderBlockingMs": 233,
        "breakdown": {
          "offscreenImageSavings": 258121,
          "unusedJavascriptSavings": 907638,
          "unusedCssSavings": 88373
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 258121,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 907638,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88373,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 233,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348768,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 205150,
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2025-04/DOE%20LM%20PositiveStacked.png?itok=JZts2wei",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.googletagmanager.com",
            "area": "script",
            "urgency": "medium",
            "estimatedSavingsBytes": 159221,
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224831,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149743,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
            }
          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20793,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
              "error": null
            }
          },
          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17256,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
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              "title": "Remove unnecessary or redundant information",
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            "resourceType": "script",
            "count": 10,
            "transferBytes": 1596797
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            "transferBytes": 552189
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          {
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            "count": 8,
            "transferBytes": 1149743
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            "count": 6,
            "transferBytes": 1091197
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        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 258121,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 907638,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348768,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "medium",
            "estimatedSavingsBytes": 205150,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2025-04/DOE%20LM%20PositiveStacked.png?itok=JZts2wei",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.17,
          "displayValue": "5.6 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.6 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 886 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 886 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 510 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 510 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 55 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 55 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 230 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 230 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "server-response-time",
          "title": "Reduce initial server response time",
          "description": "Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).",
          "score": 0,
          "displayValue": "Root document took 1,650 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "4",
            "categoryName": "Hosting, Infrastructure, and Systems",
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            "title": "Ensure infrastructure fits project requirements",
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            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 908110,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 887 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 526606.7,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 514 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 368600,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 360 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 258121,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 252 KiB",
            "urgency": "high",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88373,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 52597,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 51 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 227,
            "displayValue": "Est savings of 230 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.83 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 514.26 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 359.96 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "high",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 252.07 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.30 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "medium",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 51.36 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 184211.31927374293
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 179.89 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 179.89 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 16,
        "urgency": "high",
        "transferBytes": 2733158,
        "css": {
          "unusedBytes": 88373,
          "ratio": 0.032333659451813615,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 908110,
          "duplicatedBytes": 0,
          "ratio": 0.33225667890403704,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
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        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88373,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 908110,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 16,
        "urgency": "high",
        "transferBytes": 2733158,
        "estimatedDeferrableBytes": 1254604,
        "renderBlockingMs": 227,
        "breakdown": {
          "offscreenImageSavings": 258121,
          "unusedJavascriptSavings": 908110,
          "unusedCssSavings": 88373
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        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 258121,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 908110,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88373,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 227,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348771,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 205160,
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2025-04/DOE%20LM%20PositiveStacked.png?itok=JZts2wei",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224845,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
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            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149755,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
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          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26695,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "modified": "2026-03-21T20:44:41.287420",
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            "transferBytes": 20793,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
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              "hostname": "www.google-analytics.com",
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              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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            "transferBytes": 17256,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
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              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
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            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
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              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
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              "status": "not-green",
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        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 28,
        "urgency": "high",
        "transferBytes": 2733158,
        "estimatedRedundantBytes": 996483,
        "redundancyRatio": 0.36459033835585064,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 908110,
            "displayValue": "Est savings of 887 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 88373,
            "displayValue": "Est savings of 86 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 908110,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 88373,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
      },
      "modularization": {
        "score": 52,
        "urgency": "high",
        "totalTransferBytes": 2733158,
        "heavyRequestCount": 14,
        "heavyBytes": 2256656,
        "heavyRatio": 0.8256588166509218,
        "heavyRequests": [
          {
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "transferSize": 348771,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2025-04/DOE%20LM%20PositiveStacked.png?itok=JZts2wei",
            "transferSize": 205160,
            "resourceType": "image",
            "mimeType": "image/png",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/2025-04/white-fallback_0.png",
            "transferSize": 195983,
            "resourceType": "image",
            "mimeType": "image/png",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/HD.11B.197.jpg?itok=T6hnnT79",
            "transferSize": 166729,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "transferSize": 159221,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-MFMY1F6D3V&cx=c&gtm=4e63i0",
            "transferSize": 158542,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "transferSize": 157566,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e63i0",
            "transferSize": 148120,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L",
            "transferSize": 148097,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-WZQX9F4",
            "transferSize": 136245,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-PCSS9JS&gtm_auth=rQjC8QLyy7zCI51ldZjEbA&gtm_preview=env-3&gtm_cookies_win=x",
            "transferSize": 126169,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=UA-17192165-1&cx=c&gtm=4e63i0",
            "transferSize": 115795,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/js/js_zKKF6aMALZ8I4xNBLCovOiSmbp8brvk35JuqYftzvUo.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJxtjUEOwjAMBD9U4Qv_iUxipVYtJ7JNIL-nhwYuHHd3RlswUHCSwYN2HNzMN1KyOhMqygzODhXviQZppDDMB2v9w7RWhX7FInLTOE24Ir1DWI-11jYA3Sm-vBNa3gF73y4Wij07ym2pzkEvLueXkAWwcnwAqu9OzQ",
            "transferSize": 98298,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/css/css_O5fVRBFfj6fhEreA1DF4tUTO_NSTGRwryb9guQTJH-o.css?delta=1&language=en&theme=energy_gov&include=eJxNi1EKAjEMBS9UtkdaYvvoBmNTknS1txfBRf_em2GKGnK1OUi2yiTaEjqsrb18zN--eNMzkzvCE14h3O9X_71JaOmMvbIXPWEra0dRSYOMmtE4_Cp-ZJt9zJuwH6jJOfDkip0EFpk7R_LlgUe-keMNFGRHEw",
            "transferSize": 91960,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "script",
            "count": 10,
            "transferBytes": 1596824
          },
          {
            "resourceType": "image",
            "count": 3,
            "transferBytes": 567872
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91960
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149755
          },
          {
            "domain": "www.energy.gov",
            "count": 6,
            "transferBytes": 1106901
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 258121,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 908110,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348771,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "medium",
            "estimatedSavingsBytes": 205160,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2025-04/DOE%20LM%20PositiveStacked.png?itok=JZts2wei",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.05,
          "displayValue": "7.2 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 7.2 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 887 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 887 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 514 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 514 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 51 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 51 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 230 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 230 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 252 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 252 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
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            "title": "Lazy-load offscreen images",
            "urgency": "high",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 252.07 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.31 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "medium",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 50.44 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 184582.29301675974
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 180.26 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 180.26 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 16,
        "urgency": "high",
        "transferBytes": 2736813,
        "css": {
          "unusedBytes": 88382,
          "ratio": 0.032293766508709215,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 908327,
          "duplicatedBytes": 0,
          "ratio": 0.3318922410847946,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88382,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 908327,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 16,
        "urgency": "high",
        "transferBytes": 2736813,
        "estimatedDeferrableBytes": 1254830,
        "renderBlockingMs": 246,
        "breakdown": {
          "offscreenImageSavings": 258121,
          "unusedJavascriptSavings": 908327,
          "unusedCssSavings": 88382
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        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 258121,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 908327,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88382,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 246,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348761,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 205184,
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2025-04/DOE%20LM%20PositiveStacked.png?itok=JZts2wei",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1225069,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149981,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
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                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
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          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26694,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "modified": "2026-03-21T20:44:41.287420",
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            "hostname": "www.google-analytics.com",
            "resourceType": "script",
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            "transferBytes": 20793,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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                  "id": 1365,
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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            "transferBytes": 17256,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
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              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
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          {
            "hostname": "dap.digitalgov.gov",
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            "requestCount": 1,
            "transferBytes": 9498,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
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              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "modified": "2026-03-21T14:34:28.933004",
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            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
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              "status": "not-green",
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        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
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        "transferBytes": 2736813,
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        "redundancyRatio": 0.36418600759350384,
        "relatedAuditIds": [
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          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
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            "displayValue": "Est savings of 887 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
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            "displayValue": "Est savings of 86 KiB"
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        "recommendations": [
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            "title": "Reduce unused javascript",
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            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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            "title": "Reduce unused css",
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            "auditId": "unused-css-rules",
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              "categoryName": "Web Development",
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              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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            "title": "Enable and verify text compression",
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              "title": "Remove unnecessary or redundant information",
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            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 258121,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 908327,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348761,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "medium",
            "estimatedSavingsBytes": 205184,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2025-04/DOE%20LM%20PositiveStacked.png?itok=JZts2wei",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.3,
          "displayValue": "4.8 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 4.8 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 887 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 887 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 514 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 514 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 50 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 50 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 250 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 250 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "server-response-time",
          "title": "Reduce initial server response time",
          "description": "Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).",
          "score": 0,
          "displayValue": "Root document took 1,470 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "4",
            "categoryName": "Hosting, Infrastructure, and Systems",
            "id": "11",
            "title": "Ensure infrastructure fits project requirements",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements",
            "subheading": "Maintain the infrastructure you require rather than over-provisioning. Autoscale to meet demand and preserve hardware resources."
          },
          "issueTemplate": "## Improve Reduce initial server response time\n\n- Lighthouse audit: server-response-time\n- Current value: Root document took 1,470 ms\n- WSG guideline: 11 Ensure infrastructure fits project requirements\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements\n\n### Why this matters\nKeep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.83,
          "displayValue": "3.8 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 3.8 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 252 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 252 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 2,673 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 2,673 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "score": 100,
        "urgency": "high",
        "checks": {
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          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 192590.91564245804
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 188.08 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 188.08 KB)."
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        ]
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      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
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      "deadCode": {
        "score": 18,
        "urgency": "high",
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          "auditId": "unused-css-rules"
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        "javascript": {
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          "duplicatedBytes": 0,
          "ratio": 0.3209900426340071,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
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        "html": {
          "estimatedPenalty": 0.125,
          "totalBodyElements": 0,
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          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
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            "estimatedSavingsBytes": 88373,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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        "score": 16,
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        "transferBytes": 2827555,
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        "renderBlockingMs": 252,
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          "unusedCssSavings": 88373
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        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 258121,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 907617,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88373,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 252,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348762,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 252033,
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/PA-10492.jpg?itok=P0F9Fngz",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1225705,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
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            "transferBytes": 1150616,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
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              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "modified": "2026-03-06T00:36:18",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
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          },
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            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26694,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
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              "status": "not-green",
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              "modified": "2026-03-21T20:44:41.287420",
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            "sampleUrl": "https://www.google-analytics.com/analytics.js",
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              "green": true,
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
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                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
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              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
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                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
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            "hostname": "dap.digitalgov.gov",
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            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
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              "status": "not-green",
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            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
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        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
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          "unminified-javascript"
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        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
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            "displayValue": "Est savings of 886 KiB"
          },
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            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
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            "displayValue": "Est savings of 86 KiB"
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            "auditId": "unused-javascript",
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              "categoryName": "Web Development",
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              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 258121,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 907617,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348762,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "medium",
            "estimatedSavingsBytes": 252033,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/PA-10492.jpg?itok=P0F9Fngz",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.23,
          "displayValue": "5.2 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.2 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 886 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 886 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 577 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 577 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 87 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 87 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 250 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 250 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 252 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 252 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 2,761 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 2,761 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0.5,
          "displayValue": "986 elements",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 986 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/lm/timeline-events-2002",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/lm/timeline-events-2002",
      "performanceScore": 0.54,
      "bestPracticesScore": 0.79,
      "transferBytes": 2755109,
      "co2Grams": 1.0554310128725999,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 179.88 KB)."
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        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 179.88 KB)."
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      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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        ]
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      "deadCode": {
        "score": 18,
        "urgency": "high",
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        "javascript": {
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            "duplicated-javascript"
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        "html": {
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          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
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            "estimatedSavingsBytes": 88382,
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
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            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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        ],
        "wsg": {
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          "categoryName": "Web Development",
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          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
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        "score": 16,
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        "renderBlockingMs": 231,
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        "candidates": [
          {
            "title": "Lazy-load offscreen images",
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            "urgency": "high",
            "estimatedSavingsBytes": 258121,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
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            "strategy": "Split bundles and load feature code on interaction or route transition.",
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              "categoryId": "3",
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              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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          },
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            "title": "Inline critical CSS and defer remainder",
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            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
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              "categoryId": "3",
              "categoryName": "Web Development",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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            "title": "Eliminate render-blocking resources",
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            "urgency": "medium",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348842,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 205176,
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2025-04/DOE%20LM%20PositiveStacked.png?itok=JZts2wei",
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
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        "transferBytes": 1225016,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
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            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
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              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "partner": null,
              "modified": "2026-03-06T00:36:18",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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            "hostname": "scripts.clarity.ms",
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            "transferBytes": 26694,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
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              "status": "not-green",
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            "sampleUrl": "https://www.google-analytics.com/analytics.js",
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              "green": true,
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
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        "recommendations": [
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            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
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        "wasteByAudit": [
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            "title": "Reduce unused JavaScript",
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            "auditId": "unused-css-rules",
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              "title": "Remove unnecessary or redundant information",
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            "domain": "www.googletagmanager.com"
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            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e63i0",
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            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-WZQX9F4",
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            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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            "url": "https://www.googletagmanager.com/gtag/js?id=UA-17192165-1&cx=c&gtm=4e63i0",
            "transferSize": 115795,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
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            "url": "https://www.energy.gov/sites/default/files/js/js_zKKF6aMALZ8I4xNBLCovOiSmbp8brvk35JuqYftzvUo.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJxtjUEOwjAMBD9U4Qv_iUxipVYtJ7JNIL-nhwYuHHd3RlswUHCSwYN2HNzMN1KyOhMqygzODhXviQZppDDMB2v9w7RWhX7FInLTOE24Ir1DWI-11jYA3Sm-vBNa3gF73y4Wij07ym2pzkEvLueXkAWwcnwAqu9OzQ",
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            "count": 10,
            "transferBytes": 1597059
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            "transferBytes": 567634
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            "count": 8,
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            "count": 6,
            "transferBytes": 1106730
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        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 258121,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 907963,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348842,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "medium",
            "estimatedSavingsBytes": 205176,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2025-04/DOE%20LM%20PositiveStacked.png?itok=JZts2wei",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.29,
          "displayValue": "4.9 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 4.9 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 887 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 887 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 512 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 512 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 51 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 51 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 230 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 230 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 252 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 252 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 2,691 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 2,691 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0.5,
          "displayValue": "1,136 elements",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 1,136 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/lm/timeline-events-2015",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/lm/timeline-events-2015",
      "performanceScore": 0.45,
      "bestPracticesScore": 0.79,
      "transferBytes": 2793951,
      "co2Grams": 1.0703106606114001,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149760,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 21,
        "urgency": "high",
        "transferBytes": 2793951,
        "css": {
          "unusedBytes": 88410,
          "ratio": 0.03164336096087583,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 915801,
          "duplicatedBytes": 0,
          "ratio": 0.32777990737847584,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0.25,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88410,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 915801,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 15,
        "urgency": "high",
        "transferBytes": 2793951,
        "estimatedDeferrableBytes": 1262332,
        "renderBlockingMs": 115,
        "breakdown": {
          "offscreenImageSavings": 258121,
          "unusedJavascriptSavings": 915801,
          "unusedCssSavings": 88410
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 258121,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 915801,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88410,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 115,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348769,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 291131,
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/MOA%2520signing_0_0_0.jpg?itok=p7vcOuZT",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.googletagmanager.com",
            "area": "script",
            "urgency": "medium",
            "estimatedSavingsBytes": 159221,
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224848,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149760,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26694,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
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          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20793,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
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                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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            }
          },
          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17256,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
              "error": null
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          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9498,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
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            }
          },
          {
            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
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              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
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          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 47,
        "urgency": "high",
        "transferBytes": 2793951,
        "estimatedRedundantBytes": 1004211,
        "redundancyRatio": 0.3594232683393517,
        "relatedAuditIds": [
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          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 915801,
            "displayValue": "Est savings of 894 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
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            "displayValue": "Est savings of 86 KiB"
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        ],
        "recommendations": [
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            "title": "Reduce unused javascript",
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            "estimatedSavingsBytes": 915801,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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            "title": "Reduce unused css",
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            "auditId": "unused-css-rules",
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              "categoryId": "3",
              "categoryName": "Web Development",
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              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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            "title": "Enable and verify text compression",
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              "categoryId": "3",
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              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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          {
            "title": "Reduce DOM complexity and redundant markup",
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            "auditId": "dom-size",
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              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
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        "wsg": {
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        "urgency": "high",
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        "heavyBytes": 2346674,
        "heavyRatio": 0.8399123678260643,
        "heavyRequests": [
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          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-WZQX9F4",
            "transferSize": 136245,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-PCSS9JS&gtm_auth=rQjC8QLyy7zCI51ldZjEbA&gtm_preview=env-3&gtm_cookies_win=x",
            "transferSize": 126169,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=UA-17192165-1&cx=c&gtm=4e63i0",
            "transferSize": 115795,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/js/js_zKKF6aMALZ8I4xNBLCovOiSmbp8brvk35JuqYftzvUo.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJxtjUEOwjAMBD9U4Qv_iUxipVYtJ7JNIL-nhwYuHHd3RlswUHCSwYN2HNzMN1KyOhMqygzODhXviQZppDDMB2v9w7RWhX7FInLTOE24Ir1DWI-11jYA3Sm-vBNa3gF73y4Wij07ym2pzkEvLueXkAWwcnwAqu9OzQ",
            "transferSize": 98298,
            "resourceType": "script",
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            "domain": "www.energy.gov"
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            "url": "https://www.energy.gov/sites/default/files/css/css_O5fVRBFfj6fhEreA1DF4tUTO_NSTGRwryb9guQTJH-o.css?delta=1&language=en&theme=energy_gov&include=eJxNi1EKAjEMBS9UtkdaYvvoBmNTknS1txfBRf_em2GKGnK1OUi2yiTaEjqsrb18zN--eNMzkzvCE14h3O9X_71JaOmMvbIXPWEra0dRSYOMmtE4_Cp-ZJt9zJuwH6jJOfDkip0EFpk7R_LlgUe-keMNFGRHEw",
            "transferSize": 91956,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "script",
            "count": 10,
            "transferBytes": 1596827
          },
          {
            "resourceType": "image",
            "count": 2,
            "transferBytes": 487087
          },
          {
            "resourceType": "document",
            "count": 1,
            "transferBytes": 170804
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91956
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 6,
            "transferBytes": 1196914
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149760
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 258121,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 915801,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348769,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 291131,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/MOA%2520signing_0_0_0.jpg?itok=p7vcOuZT",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.21,
          "displayValue": "5.3 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.3 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 894 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 894 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 454 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 454 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 93 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 93 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 120 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 120 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "server-response-time",
          "title": "Reduce initial server response time",
          "description": "Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).",
          "score": 0,
          "displayValue": "Root document took 1,970 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "4",
            "categoryName": "Hosting, Infrastructure, and Systems",
            "id": "11",
            "title": "Ensure infrastructure fits project requirements",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements",
            "subheading": "Maintain the infrastructure you require rather than over-provisioning. Autoscale to meet demand and preserve hardware resources."
          },
          "issueTemplate": "## Improve Reduce initial server response time\n\n- Lighthouse audit: server-response-time\n- Current value: Root document took 1,970 ms\n- WSG guideline: 11 Ensure infrastructure fits project requirements\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements\n\n### Why this matters\nKeep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0,
          "displayValue": "5,092 elements",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 5,092 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.62,
          "displayValue": "5.1 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 5.1 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 252 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 252 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 2,728 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 2,728 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/lm/labs-and-field-site-histories",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/lm/labs-and-field-site-histories",
      "performanceScore": 0.48,
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            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 191.08 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 191.08 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 15,
        "urgency": "high",
        "transferBytes": 2847544,
        "css": {
          "unusedBytes": 88768,
          "ratio": 0.031173530593381526,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 907931,
          "duplicatedBytes": 0,
          "ratio": 0.3188470485442894,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88768,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 907931,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 13,
        "urgency": "high",
        "transferBytes": 2847544,
        "estimatedDeferrableBytes": 996699,
        "renderBlockingMs": 286,
        "breakdown": {
          "offscreenImageSavings": 0,
          "unusedJavascriptSavings": 907931,
          "unusedCssSavings": 88768
        },
        "candidates": [
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 907931,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88768,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 286,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 386990,
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2018/06/f53/Control%20Panel%2013451566893_88594b020a_o_2.jpg?itok=NmesLQVk",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348852,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.googletagmanager.com",
            "area": "script",
            "urgency": "medium",
            "estimatedSavingsBytes": 159221,
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224852,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149765,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26693,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
            }
          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20793,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
                {
                  "id": 108,
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                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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          },
          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
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            "transferBytes": 17256,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
                {
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                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
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          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9498,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
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              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "modified": "2026-03-21T14:34:28.933004",
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            "hostname": "www.clarity.ms",
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            "requestCount": 1,
            "transferBytes": 847,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
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              "hostname": "www.clarity.ms",
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              "status": "not-green",
              "green": false,
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              "modified": "2026-03-21T14:43:53.340642",
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
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          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 27,
        "urgency": "high",
        "transferBytes": 2847544,
        "estimatedRedundantBytes": 996699,
        "redundancyRatio": 0.35002057913767093,
        "relatedAuditIds": [
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          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 907931,
            "displayValue": "Est savings of 887 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
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            "displayValue": "Est savings of 87 KiB"
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        "recommendations": [
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            "title": "Reduce unused javascript",
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            "estimatedSavingsBytes": 907931,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
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              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
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            "title": "Reduce unused css",
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              "categoryId": "3",
              "categoryName": "Web Development",
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              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
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          {
            "title": "Enable and verify text compression",
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              "categoryId": "3",
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              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
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        ],
        "wsg": {
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          "categoryName": "Web Development",
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          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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            "title": "Defer non-critical UI modules until after first render",
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            "estimatedSavingsBytes": 0,
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              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
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            "estimatedSavingsBytes": 386990,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
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            "title": "Modularize heavy script asset from www.energy.gov",
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            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
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            "wsg": {
              "categoryId": "3",
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              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
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        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
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      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.01,
          "displayValue": "8.7 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 8.7 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 887 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 887 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 87 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 87 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 534 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 534 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 134 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 134 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 290 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 290 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "server-response-time",
          "title": "Reduce initial server response time",
          "description": "Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).",
          "score": 0,
          "displayValue": "Root document took 610 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "4",
            "categoryName": "Hosting, Infrastructure, and Systems",
            "id": "11",
            "title": "Ensure infrastructure fits project requirements",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements",
            "subheading": "Maintain the infrastructure you require rather than over-provisioning. Autoscale to meet demand and preserve hardware resources."
          },
          "issueTemplate": "## Improve Reduce initial server response time\n\n- Lighthouse audit: server-response-time\n- Current value: Root document took 610 ms\n- WSG guideline: 11 Ensure infrastructure fits project requirements\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements\n\n### Why this matters\nKeep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.84,
          "displayValue": "3.8 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 3.8 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 2,781 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 2,781 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/lm/exhibits-museums-and-historic-facilities",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/lm/exhibits-museums-and-historic-facilities",
      "performanceScore": 0.48,
      "bestPracticesScore": 0.79,
      "transferBytes": 3253973,
      "co2Grams": 1.2465365324022,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149753,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "partner": null,
              "modified": "2026-03-06T00:36:18",
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                  "title": "Alphabet 2024 CDP Climate Change Response",
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                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
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                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
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            "resourceType": "script",
            "requestCount": 1,
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            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
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            "url": "https://www.energy.gov/sites/default/files/css/css_O5fVRBFfj6fhEreA1DF4tUTO_NSTGRwryb9guQTJH-o.css?delta=1&language=en&theme=energy_gov&include=eJxNi0EKwzAMBD8k4icZ1V6MqGoFSUnq35dCA73tzLDNHKX7sbNuXVhtECZ8rNq-5W_ffthZOAIZhHeqzOf9_yEpLzuydolmJ3wVm2imFJK4pKOywrPIlKRYkXiVBwc-9Vs23w",
            "transferSize": 91954,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "script",
            "count": 10,
            "transferBytes": 1596817
          },
          {
            "resourceType": "image",
            "count": 3,
            "transferBytes": 1138100
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91954
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 6,
            "transferBytes": 1677118
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149753
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 908166,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 600438,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2018/06/f53/Women%20Workers%20Shift%20Change%20Y-12_0_1.jpg?itok=D7r_xIXc",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348761,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "10.8 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 10.8 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 887 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 887 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 87 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 87 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 761 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 761 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 273 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 273 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 300 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 300 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.86,
          "displayValue": "3.6 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 3.6 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 62 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 62 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 3,178 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 3,178 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/lm/manhattan-project-national-historical-park-history",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/lm/manhattan-project-national-historical-park-history",
      "performanceScore": 0.47,
      "bestPracticesScore": 0.79,
      "transferBytes": 3108218,
      "co2Grams": 1.1907005029452,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [
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            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149749,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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                  "title": "Alphabet 2024 CDP Climate Change Response",
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                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
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            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26694,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
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              "hostname": "scripts.clarity.ms",
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          "displayValue": "10.1 s",
          "impact": "high",
          "wsg": {
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            "categoryName": "Web Development",
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            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
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          "impact": "high",
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            "categoryId": "3",
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          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
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          "score": 0,
          "displayValue": "Est savings of 87 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
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            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
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          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 87 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "auditId": "modern-image-formats",
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          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 717 KiB",
          "impact": "high",
          "wsg": {
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            "title": "Optimize media to reduce resource use",
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          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
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          "score": 0,
          "displayValue": "Est savings of 230 KiB",
          "impact": "high",
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            "title": "Optimize media to reduce resource use",
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          },
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        },
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          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 200 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
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        },
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          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
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          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 3,035 KiB",
          "impact": "medium",
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            "id": "25",
            "title": "Define performance and environmental budgets",
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            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 3,035 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "ogDescription": "Find links to DOE histories of the Manhattan Project, site histories, Manhattan Project records, and exhibits.",
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        "recommendations": [
          {
            "title": "Metadata structure looks healthy",
            "urgency": "low",
            "detail": "Core machine-readable metadata is present and no structural issues were detected."
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        ]
      },
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        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 37,
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        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "high",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 37 small targets on mobile and 44 on tablet."
          }
        ]
      },
      "securityLight": {
        "score": 37,
        "urgency": "medium",
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          "vulnerableLibraryCount": 0
        },
        "observed": {
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            "cache-control": "max-age=2764800, public",
            "cache-tags": "HIT",
            "content-language": "en",
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            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "JDUMCpTFAUvcyMxYr1D-wuaCeWcm2bThHznPp0RXvRUTdQdoaararg==",
            "x-amz-cf-pop": "IAD61-P4",
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            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
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            "x-ruxit-js-agent": "true",
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          "vulnerableLibrariesAuditScore": null,
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        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
          }
        ]
      },
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        "checks": [
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            "status": 200,
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          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
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          {
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            "url": "https://www.energy.gov/.well-known/security.txt",
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            "status": 403,
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          {
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            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
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            "contentType": "text/html; charset=UTF-8"
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          {
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        ],
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          {
            "title": "Add beneficial discoverability and maintenance files",
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          {
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          },
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          },
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            "title": "Improve image encoding quality/size",
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            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 215.92 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
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        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
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            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
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            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "modern-image-formats",
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          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
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            "detail": "Avoid sending larger images than the rendered size needs.",
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            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
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          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
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            "displayValue": "Est savings of 216 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
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            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
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          {
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          {
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            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 319.44 KB."
          },
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            "title": "Compress oversized image assets",
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            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 215.92 KB."
          },
          {
            "title": "Remove unused CSS",
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            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.39 KB."
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        ]
      },
      "dependencyMaintenance": {
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          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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            "title": "Add integrity attributes for external dependencies",
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            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
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          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "score": 100,
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          "hasServiceWorker": false,
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          "hasOfflineStartUrl": false,
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          "cacheSavingsBytes": 219728.4642458099
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        "opportunities": [
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            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          {
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            "title": "Ensure critical routes work offline",
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            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
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            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 214.58 KB)."
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        ],
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            "title": "Add service worker support",
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          },
          {
            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
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            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
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        ]
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          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
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        "recommendations": [
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            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88465,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 908280,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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        "renderBlockingMs": 338,
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          "unusedCssSavings": 88465
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        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 434363,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 908280,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88465,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 338,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348769,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 323285,
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2017/06/f34/10427414543_4956c46204_o%20cropped%20larger%20file_0_1.jpg?itok=pPOw8QrZ",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
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          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 887 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 887 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 698 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 698 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 216 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 216 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 340 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
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          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 340 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 424 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
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        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 3,023 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 3,023 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
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          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
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            "title": "Defer non-critical JavaScript",
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            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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          "categoryName": "Web Development",
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          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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      },
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          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "urgency": "high",
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            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
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              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
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          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "displayValue": "Est savings of 341 KiB",
          "impact": "high",
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            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 341 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 103 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
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          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 103 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
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          "displayValue": "Est savings of 62 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
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        },
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          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 330 ms",
          "impact": "high",
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            "categoryId": "3",
            "categoryName": "Web Development",
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            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
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          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 330 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
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          "displayValue": "3.9 s",
          "impact": "medium",
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            "categoryId": "3",
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            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
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          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 3.9 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
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          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
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            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
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          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 6,035 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
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          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 6,035 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0.5,
          "displayValue": "1,031 elements",
          "impact": "medium",
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            "categoryId": "3",
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            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
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          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 1,031 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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            "etag": "\"1774141065:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
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            "server": "Apache",
            "server-timing": "dtTrId;desc=\"8b9912e506abdf4be45d0b9638439344\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"-1345153227\"",
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            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "DvvZhzT8uGsDYI5rjgnM-VO11XlayrZZjjwgYttyVG-z1eLGmXN0KQ==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "2596104 2596102",
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          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
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          {
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          {
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            "url": "https://www.energy.gov/.well-known/security.txt",
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
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        "urgency": "low",
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          {
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          {
            "id": "unminified-javascript",
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          },
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            "title": "Enable Brotli/gzip for text assets",
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        ],
        "recommendations": [
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            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 761.27 KB."
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          {
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 272.63 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
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        ]
      },
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            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
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            "urgency": "high",
            "sourceAuditId": "unused-javascript"
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          {
            "id": "modern-image-formats",
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            "displayValue": "Est savings of 273 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
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          {
            "id": "unused-css-rules",
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            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
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            "sourceAuditId": "unminified-javascript"
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            "sourceAuditId": "uses-text-compression"
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          {
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            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 761.27 KB."
          },
          {
            "title": "Compress oversized image assets",
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            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 272.63 KB."
          },
          {
            "title": "Remove unused CSS",
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            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.69 KB."
          },
          {
            "title": "Right-size images for viewport",
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            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
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            "title": "Eliminate render-blocking resources",
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            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 364 ms."
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        ]
      },
      "dependencyMaintenance": {
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          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
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      "offlineSupport": {
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          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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        "score": 100,
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          "worksOffline": false,
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        "opportunities": [
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            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
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            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
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            "title": "Strengthen static asset cache TTL",
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            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 582.10 KB)."
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          },
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          },
          {
            "title": "Support offline start URL behavior",
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            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
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            "title": "No obvious outdated runtime version disclosed",
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          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
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            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
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            "estimatedSavingsBytes": 88768,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 915743,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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          }
        ],
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          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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        "estimatedDeferrableBytes": 1004511,
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          "offscreenImageSavings": 0,
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        "candidates": [
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
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            "strategy": "Split bundles and load feature code on interaction or route transition.",
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              "categoryName": "Web Development",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
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            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
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              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
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              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075245,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
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              "categoryName": "Web Development",
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              "title": "Defer the loading of non-critical resources",
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
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        "transferBytes": 1224830,
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            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
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              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "partner": null,
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                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
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          },
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            "transferBytes": 26694,
            "sampleUrl": "https://scripts.clarity.ms/0.8.58-beta/clarity.js",
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              "status": "not-green",
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              "hostedBy": null,
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            "sampleUrl": "https://www.google-analytics.com/analytics.js",
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              "green": true,
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          "displayValue": "12.4 s",
          "impact": "high",
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            "title": "Set goals based on performance and energy impact",
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        },
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          "title": "Speed Index",
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          "displayValue": "8.3 s",
          "impact": "high",
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            "categoryId": "3",
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            "title": "Set goals based on performance and energy impact",
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            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
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          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 8.3 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
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          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 894 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 894 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 87 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 87 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 761 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 761 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 273 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 273 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 360 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 360 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "server-response-time",
          "title": "Reduce initial server response time",
          "description": "Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).",
          "score": 0,
          "displayValue": "Root document took 1,020 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "4",
            "categoryName": "Hosting, Infrastructure, and Systems",
            "id": "11",
            "title": "Ensure infrastructure fits project requirements",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements",
            "subheading": "Maintain the infrastructure you require rather than over-provisioning. Autoscale to meet demand and preserve hardware resources."
          },
          "issueTemplate": "## Improve Reduce initial server response time\n\n- Lighthouse audit: server-response-time\n- Current value: Root document took 1,020 ms\n- WSG guideline: 11 Ensure infrastructure fits project requirements\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements\n\n### Why this matters\nKeep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 6,768 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 6,768 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/management/articles/gosling-manhattan-project-making-atomic-bomb",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/management/articles/gosling-manhattan-project-making-atomic-bomb",
      "performanceScore": null,
      "bestPracticesScore": null,
      "transferBytes": 0,
      "co2Grams": 0,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [],
        "summary": {
          "pageStatus": "not-green",
          "externalOriginCount": 0,
          "greenCount": 0,
          "notGreenCount": 1,
          "unknownCount": 0
        }
      },
      "formValidation": {
        "score": 0,
        "urgency": "low",
        "pageElementOccurrences": 0,
        "uniqueElementsAssessed": 0,
        "reusedFromCacheCount": 0,
        "components": [],
        "recommendations": [
          {
            "title": "No major form validation risks detected",
            "urgency": "low",
            "detail": "Continue testing form flows to ensure error handling remains clear across templates."
          }
        ]
      },
      "metadata": {
        "score": 85,
        "urgency": "high",
        "checks": {
          "hasTitle": false,
          "hasLang": false,
          "hasDescription": false,
          "hasCanonical": false,
          "hasOpenGraphCore": false,
          "hasTwitterCard": false,
          "hasViewport": false,
          "hasCharset": false,
          "hasValidStructuredData": true,
          "hasInvalidStructuredData": false
        },
        "observed": {
          "title": "",
          "lang": "",
          "charset": "",
          "viewport": "",
          "description": "",
          "robots": "",
          "canonical": "",
          "ogTitle": "",
          "ogDescription": "",
          "ogType": "",
          "ogUrl": "",
          "twitterCard": "",
          "ldJsonCount": 0,
          "validLdJsonCount": 0,
          "invalidLdJsonCount": 0
        },
        "recommendations": [
          {
            "title": "Add document language metadata",
            "urgency": "high",
            "detail": "Set the html lang attribute for machine readability and localization tooling."
          },
          {
            "title": "Add canonical URL metadata",
            "urgency": "medium",
            "detail": "Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling."
          },
          {
            "title": "Add meta description",
            "urgency": "medium",
            "detail": "Provide a concise description to improve machine interpretation and preview quality."
          },
          {
            "title": "Complete Open Graph metadata",
            "urgency": "medium",
            "detail": "Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata."
          },
          {
            "title": "Add twitter:card metadata",
            "urgency": "low",
            "detail": "Include twitter card metadata to improve cross-platform machine-readable previews."
          }
        ]
      },
      "layoutAdaptation": {
        "score": 0,
        "urgency": "low",
        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 0,
          "tabletSmallTapTargets": 0,
          "fixedWidthOffenders": 0,
          "oversizedMedia": 0,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
            "viewportWidth": 980,
            "viewportHeight": 2121,
            "contentWidth": 980,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 0,
            "oversizedMedia": 0
          },
          {
            "device": "tablet",
            "viewportWidth": 980,
            "viewportHeight": 1411,
            "contentWidth": 980,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 0,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Layout adaptation looks healthy",
            "urgency": "low",
            "detail": "No major mobile or tablet layout issues were detected in this sample."
          }
        ]
      },
      "securityLight": {
        "score": 29,
        "urgency": "low",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 0,
          "externalScriptsWithoutIntegrity": 0,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "accept": "application/pdf",
            "accept-ranges": "bytes",
            "age": "1",
            "cache-control": "no-cache, private",
            "cache-tags": "MISS",
            "content-length": "8949036",
            "content-security-policy": "",
            "content-type": "application/pdf",
            "date": "Sun, 22 Mar 2026 00:58:30 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_2_sn_C9F7D05F66DD4CE3712971A9520D9C26_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "vmKzLp5k5_iKC_xoJ-RXEBqoFyWeU-pRNhlMDLfiQ8AhThpVbKpg1A==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Hit from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-frame-options": "SAMEORIGIN",
            "x-varnish": "10076571",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 0,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 0,
        "checks": {
          "hasEffectiveTextCompression": true
        },
        "opportunities": [],
        "recommendations": [
          {
            "title": "No major compression opportunity detected",
            "urgency": "low",
            "detail": "Compression signals look healthy in current Lighthouse audits; continue enforcing compression and asset encoding in CI/CD."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 0,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 0,
        "totalEstimatedBlockingMs": 0,
        "opportunities": [],
        "recommendations": [
          {
            "title": "No obvious optimization bloat signals",
            "urgency": "low",
            "detail": "No major easy-win optimization opportunities were detected from current Lighthouse signals."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 0,
        "urgency": "low",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 0,
        "recommendations": [
          {
            "title": "No dependency maintenance warnings detected",
            "urgency": "low",
            "detail": "No vulnerable dependency flags were found for this page in the current lightweight checks."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0,
          "cacheSavingsBytes": 0
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "high",
            "detail": "Improve long-lived cache headers for immutable static assets."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "high",
            "detail": "Improve long-lived cache headers for immutable static assets."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "css": {
          "unusedBytes": 0,
          "ratio": 0,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 0,
          "duplicatedBytes": 0,
          "ratio": 0,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "estimatedDeferrableBytes": 0,
        "renderBlockingMs": 0,
        "breakdown": {
          "offscreenImageSavings": 0,
          "unusedJavascriptSavings": 0,
          "unusedCssSavings": 0
        },
        "candidates": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 0,
        "urgency": "low",
        "providerCount": 0,
        "requestCount": 0,
        "transferBytes": 0,
        "notGreenCount": 0,
        "unknownCount": 0,
        "scripts": [],
        "recommendations": [
          {
            "title": "No major third-party JavaScript risk signals",
            "urgency": "low",
            "detail": "Continue periodic reviews so third-party additions are assessed with the same rigor as first-party code."
          }
        ]
      },
      "redundancy": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "estimatedRedundantBytes": 0,
        "redundancyRatio": 0,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [],
        "recommendations": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
      },
      "modularization": {
        "score": 0,
        "urgency": "low",
        "totalTransferBytes": 0,
        "heavyRequestCount": 0,
        "heavyBytes": 0,
        "heavyRatio": 0,
        "heavyRequests": [],
        "groupedByType": [],
        "groupedByOrigin": [],
        "onDemandCandidates": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-rel-preconnect",
          "title": "Preconnect to required origins",
          "description": "Consider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. [Learn how to preconnect to required origins](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Preconnect to required origins\n\n- Lighthouse audit: uses-rel-preconnect\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nConsider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. [Learn how to preconnect to required origins](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "server-response-time",
          "title": "Initial server response time was short",
          "description": "Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "4",
            "categoryName": "Hosting, Infrastructure, and Systems",
            "id": "11",
            "title": "Ensure infrastructure fits project requirements",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements",
            "subheading": "Maintain the infrastructure you require rather than over-provisioning. Autoscale to meet demand and preserve hardware resources."
          },
          "issueTemplate": "## Improve Initial server response time was short\n\n- Lighthouse audit: server-response-time\n- WSG guideline: 11 Ensure infrastructure fits project requirements\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements\n\n### Why this matters\nKeep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoids enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoids enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoids an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoids an excessive DOM size\n\n- Lighthouse audit: dom-size\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
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      "url": "https://www.energy.gov/management/articles/hewlett-and-anderson-new-world",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/management/articles/hewlett-and-anderson-new-world",
      "performanceScore": 0.49,
      "bestPracticesScore": 0.75,
      "transferBytes": 5783928,
      "co2Grams": 2.2157152357392,
      "greenWeb": {
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          "listedProvider": null,
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          "modified": "2026-03-22T00:37:04.494037",
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            "detail": "Provide an offline fallback strategy for key pages and shell assets."
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            "title": "Improve web app manifest support",
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          },
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          },
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          },
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          },
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              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
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            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
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              "categoryName": "Web Development",
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          "ldJsonCount": 0,
          "validLdJsonCount": 0,
          "invalidLdJsonCount": 0
        },
        "recommendations": [
          {
            "title": "Add meta description",
            "urgency": "medium",
            "detail": "Provide a concise description to improve machine interpretation and preview quality."
          },
          {
            "title": "Complete Open Graph metadata",
            "urgency": "medium",
            "detail": "Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata."
          }
        ]
      },
      "layoutAdaptation": {
        "score": 30,
        "urgency": "medium",
        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 27,
          "tabletSmallTapTargets": 28,
          "fixedWidthOffenders": 0,
          "oversizedMedia": 0,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
            "viewportWidth": 390,
            "viewportHeight": 844,
            "contentWidth": 390,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 27,
            "oversizedMedia": 0
          },
          {
            "device": "tablet",
            "viewportWidth": 820,
            "viewportHeight": 1180,
            "contentWidth": 820,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 28,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "high",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 27 small targets on mobile and 28 on tablet."
          }
        ]
      },
      "securityLight": {
        "score": 39,
        "urgency": "medium",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 5,
          "externalScriptsWithoutIntegrity": 5,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "age": "1332",
            "cache-control": "max-age=2764800, public",
            "cache-tags": "HIT",
            "content-language": "en",
            "content-security-policy": "",
            "date": "Sun, 22 Mar 2026 00:58:57 GMT",
            "etag": "\"1774137817:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
            "last-modified": "Sun, 22 Mar 2026 00:03:36 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"5d79b810646f285f17b8918ee4395566\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"771977876\"",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_1_sn_335B921D964F90DB540CF084CADBCD26_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "LlrkYR6yqFm8XAzjIzXQTTaPH9zcE19QyzD2i2_Y8FSdtwoAm4BPFQ==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "9459907 9355587",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "5 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 1,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 84159,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "estimatedSavingsBytes": 71216,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "estimatedSavingsBytes": 7454,
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 1160237,
        "totalEstimatedBlockingMs": 458,
        "opportunities": [
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 906997,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 886 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88430,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 71216,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 70 KiB",
            "urgency": "medium",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 458,
            "displayValue": "Est savings of 460 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript",
            "detail": "Use minified production JS output to reduce payload size.",
            "estimatedSavingsBytes": 7454,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 885.74 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.36 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "medium",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 69.55 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "medium",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 458 ms."
          },
          {
            "title": "Minify JavaScript",
            "urgency": "low",
            "detail": "Use minified production JS output to reduce payload size. Estimated byte savings: 7.28 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 10,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 5,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "5 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 483507.65726256947
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 472.18 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 472.18 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 8,
        "urgency": "high",
        "transferBytes": 5783516,
        "css": {
          "unusedBytes": 88430,
          "ratio": 0.015290006978453938,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 906997,
          "duplicatedBytes": 0,
          "ratio": 0.1568244991455025,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
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          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88430,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 906997,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 10,
        "urgency": "high",
        "transferBytes": 5783516,
        "estimatedDeferrableBytes": 995427,
        "renderBlockingMs": 458,
        "breakdown": {
          "offscreenImageSavings": 0,
          "unusedJavascriptSavings": 906997,
          "unusedCssSavings": 88430
        },
        "candidates": [
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 906997,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88430,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 458,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075218,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 7,
        "requestCount": 14,
        "transferBytes": 1224857,
        "notGreenCount": 4,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149768,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
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            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
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        "score": 1,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 84159,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "estimatedSavingsBytes": 71216,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "unminified-javascript",
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "estimatedSavingsBytes": 7454,
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "medium",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 69.55 KB."
          },
          {
            "title": "Minify JavaScript before transfer",
            "urgency": "low",
            "detail": "Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 7.28 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
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        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 1161649,
        "totalEstimatedBlockingMs": 458,
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          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 887 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 70 KiB",
            "urgency": "medium",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 458,
            "displayValue": "Est savings of 460 ms",
            "urgency": "medium",
            "sourceAuditId": "render-blocking-resources"
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          {
            "id": "unminified-javascript",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 7 KiB",
            "urgency": "low",
            "sourceAuditId": "unminified-javascript"
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            "id": "uses-text-compression",
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            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
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            "title": "Remove unused JavaScript",
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          {
            "title": "Remove unused CSS",
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            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.36 KB."
          },
          {
            "title": "Right-size images for viewport",
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          {
            "title": "Serve images in next-gen formats",
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          },
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            "title": "Eliminate render-blocking resources",
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            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 458 ms."
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          {
            "title": "Minify JavaScript",
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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        "recommendations": [
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            "title": "Add integrity attributes for external dependencies",
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
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          "cacheSavingsBytes": 483482.11983240215
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            "id": "service-worker",
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
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            "detail": "Provide an offline fallback strategy for key pages and shell assets."
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          {
            "id": "installable-manifest",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
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          {
            "id": "uses-long-cache-ttl",
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            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 472.15 KB)."
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        ],
        "recommendations": [
          {
            "title": "Add service worker support",
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            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
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            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 472.15 KB)."
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        ]
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
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        "score": 0,
        "urgency": "low",
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        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
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        "urgency": "high",
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        "recommendations": [
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            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
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            "estimatedSavingsBytes": 88430,
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              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
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              "title": "Remove unnecessary code",
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            "title": "Defer non-critical JavaScript",
            "area": "javascript",
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            "estimatedSavingsBytes": 908409,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
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              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
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            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
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              "categoryName": "Web Development",
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              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
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          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
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              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
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            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 1075198,
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
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            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
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              "title": "Defer the loading of non-critical resources",
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          "categoryName": "Web Development",
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          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
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      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "urgency": "high",
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        "transferBytes": 1225775,
        "notGreenCount": 4,
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              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
              "error": null
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          {
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            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 0,
            "sampleUrl": "https://s7.addthis.com/js/300/addthis_widget.js",
            "greenCheck": {
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              "modified": "2026-03-22T00:48:49.278763",
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/s7.addthis.com",
              "error": null
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          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 7 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "4 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 19,
        "urgency": "high",
        "transferBytes": 5784310,
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        "redundancyRatio": 0.1723349889615183,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 908409,
            "displayValue": "Est savings of 887 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 88430,
            "displayValue": "Est savings of 86 KiB"
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        ],
        "recommendations": [
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            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 908409,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 88430,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
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      "modularization": {
        "score": 50,
        "urgency": "high",
        "totalTransferBytes": 5784310,
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        "heavyBytes": 5342055,
        "heavyRatio": 0.9235423066882653,
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            "transferSize": 1075198,
            "resourceType": "script",
            "mimeType": "application/javascript",
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            "transferSize": 158775,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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            "url": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "transferSize": 157793,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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          {
            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e63j1h2",
            "transferSize": 148360,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
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            "transferSize": 148107,
            "resourceType": "script",
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          },
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            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-WZQX9F4",
            "transferSize": 136245,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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            "url": "https://www.googletagmanager.com/gtm.js?id=GTM-PCSS9JS&gtm_auth=rQjC8QLyy7zCI51ldZjEbA&gtm_preview=env-3&gtm_cookies_win=x",
            "transferSize": 126169,
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            "transferSize": 116018,
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            "domain": "www.googletagmanager.com"
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            "transferSize": 98298,
            "resourceType": "script",
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            "domain": "www.energy.gov"
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            "url": "https://www.energy.gov/sites/default/files/css/css_O5fVRBFfj6fhEreA1DF4tUTO_NSTGRwryb9guQTJH-o.css?delta=1&language=en&theme=energy_gov&include=eJxNi0EKwzAMBD8k4icFJV4cUdU2ktwkvy-Fmva2M8PuzZCyjc66ZGFthVBh5V73T_nb05f2SuyOcMIVKvUx_1-kzsbFuB8-y88so_axqfiBTC6BUzJWVlgkqRLktweeaWPHG8iYPWM",
            "transferSize": 91955,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "script",
            "count": 15,
            "transferBytes": 5250100
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91955
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 8,
            "transferBytes": 4191367
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            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1150688
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        ],
        "onDemandCandidates": [
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 908409,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 1075198,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/themes/custom/energy_gov/js/fontawesome/duotone-regular.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.25,
          "displayValue": "5.1 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 5.1 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.33,
          "displayValue": "6.9 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 6.9 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 887 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 887 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 70 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 70 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 460 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 460 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "server-response-time",
          "title": "Reduce initial server response time",
          "description": "Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).",
          "score": 0,
          "displayValue": "Root document took 1,390 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "4",
            "categoryName": "Hosting, Infrastructure, and Systems",
            "id": "11",
            "title": "Ensure infrastructure fits project requirements",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements",
            "subheading": "Maintain the infrastructure you require rather than over-provisioning. Autoscale to meet demand and preserve hardware resources."
          },
          "issueTemplate": "## Improve Reduce initial server response time\n\n- Lighthouse audit: server-response-time\n- Current value: Root document took 1,390 ms\n- WSG guideline: 11 Ensure infrastructure fits project requirements\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements\n\n### Why this matters\nKeep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 5,649 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 5,649 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/management/articles/history-atomic-energy-commission",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/management/articles/history-atomic-energy-commission",
      "performanceScore": null,
      "bestPracticesScore": null,
      "transferBytes": 0,
      "co2Grams": 0,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [],
        "summary": {
          "pageStatus": "not-green",
          "externalOriginCount": 0,
          "greenCount": 0,
          "notGreenCount": 1,
          "unknownCount": 0
        }
      },
      "formValidation": {
        "score": 0,
        "urgency": "low",
        "pageElementOccurrences": 0,
        "uniqueElementsAssessed": 0,
        "reusedFromCacheCount": 0,
        "components": [],
        "recommendations": [
          {
            "title": "No major form validation risks detected",
            "urgency": "low",
            "detail": "Continue testing form flows to ensure error handling remains clear across templates."
          }
        ]
      },
      "metadata": {
        "score": 85,
        "urgency": "high",
        "checks": {
          "hasTitle": false,
          "hasLang": false,
          "hasDescription": false,
          "hasCanonical": false,
          "hasOpenGraphCore": false,
          "hasTwitterCard": false,
          "hasViewport": false,
          "hasCharset": false,
          "hasValidStructuredData": true,
          "hasInvalidStructuredData": false
        },
        "observed": {
          "title": "",
          "lang": "",
          "charset": "",
          "viewport": "",
          "description": "",
          "robots": "",
          "canonical": "",
          "ogTitle": "",
          "ogDescription": "",
          "ogType": "",
          "ogUrl": "",
          "twitterCard": "",
          "ldJsonCount": 0,
          "validLdJsonCount": 0,
          "invalidLdJsonCount": 0
        },
        "recommendations": [
          {
            "title": "Add document language metadata",
            "urgency": "high",
            "detail": "Set the html lang attribute for machine readability and localization tooling."
          },
          {
            "title": "Add canonical URL metadata",
            "urgency": "medium",
            "detail": "Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling."
          },
          {
            "title": "Add meta description",
            "urgency": "medium",
            "detail": "Provide a concise description to improve machine interpretation and preview quality."
          },
          {
            "title": "Complete Open Graph metadata",
            "urgency": "medium",
            "detail": "Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata."
          },
          {
            "title": "Add twitter:card metadata",
            "urgency": "low",
            "detail": "Include twitter card metadata to improve cross-platform machine-readable previews."
          }
        ]
      },
      "layoutAdaptation": {
        "score": 0,
        "urgency": "low",
        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 0,
          "tabletSmallTapTargets": 0,
          "fixedWidthOffenders": 0,
          "oversizedMedia": 0,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
            "viewportWidth": 980,
            "viewportHeight": 2121,
            "contentWidth": 980,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 0,
            "oversizedMedia": 0
          },
          {
            "device": "tablet",
            "viewportWidth": 980,
            "viewportHeight": 1411,
            "contentWidth": 980,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 0,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Layout adaptation looks healthy",
            "urgency": "low",
            "detail": "No major mobile or tablet layout issues were detected in this sample."
          }
        ]
      },
      "securityLight": {
        "score": 29,
        "urgency": "low",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 0,
          "externalScriptsWithoutIntegrity": 0,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "accept": "application/pdf",
            "accept-ranges": "bytes",
            "age": "31",
            "cache-control": "no-cache, private",
            "cache-tags": "HIT",
            "content-length": "1812917",
            "content-security-policy": "",
            "content-type": "application/pdf",
            "date": "Sun, 22 Mar 2026 00:59:44 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_1_sn_AF4D735702B60BAFBB4578CA3E6E55E8_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "pQQaHFaQTywtmgR9ljtY-Wxw5CSNZBZ9b6JzxxljI1IhJ4dFCOj8yw==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Hit from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-frame-options": "SAMEORIGIN",
            "x-varnish": "2076947 2274893",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 0,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 0,
        "checks": {
          "hasEffectiveTextCompression": true
        },
        "opportunities": [],
        "recommendations": [
          {
            "title": "No major compression opportunity detected",
            "urgency": "low",
            "detail": "Compression signals look healthy in current Lighthouse audits; continue enforcing compression and asset encoding in CI/CD."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 0,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 0,
        "totalEstimatedBlockingMs": 0,
        "opportunities": [],
        "recommendations": [
          {
            "title": "No obvious optimization bloat signals",
            "urgency": "low",
            "detail": "No major easy-win optimization opportunities were detected from current Lighthouse signals."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 0,
        "urgency": "low",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 0,
        "recommendations": [
          {
            "title": "No dependency maintenance warnings detected",
            "urgency": "low",
            "detail": "No vulnerable dependency flags were found for this page in the current lightweight checks."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0,
          "cacheSavingsBytes": 0
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "high",
            "detail": "Improve long-lived cache headers for immutable static assets."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "high",
            "detail": "Improve long-lived cache headers for immutable static assets."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "css": {
          "unusedBytes": 0,
          "ratio": 0,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 0,
          "duplicatedBytes": 0,
          "ratio": 0,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "estimatedDeferrableBytes": 0,
        "renderBlockingMs": 0,
        "breakdown": {
          "offscreenImageSavings": 0,
          "unusedJavascriptSavings": 0,
          "unusedCssSavings": 0
        },
        "candidates": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 0,
        "urgency": "low",
        "providerCount": 0,
        "requestCount": 0,
        "transferBytes": 0,
        "notGreenCount": 0,
        "unknownCount": 0,
        "scripts": [],
        "recommendations": [
          {
            "title": "No major third-party JavaScript risk signals",
            "urgency": "low",
            "detail": "Continue periodic reviews so third-party additions are assessed with the same rigor as first-party code."
          }
        ]
      },
      "redundancy": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "estimatedRedundantBytes": 0,
        "redundancyRatio": 0,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [],
        "recommendations": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
      },
      "modularization": {
        "score": 0,
        "urgency": "low",
        "totalTransferBytes": 0,
        "heavyRequestCount": 0,
        "heavyBytes": 0,
        "heavyRatio": 0,
        "heavyRequests": [],
        "groupedByType": [],
        "groupedByOrigin": [],
        "onDemandCandidates": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-rel-preconnect",
          "title": "Preconnect to required origins",
          "description": "Consider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. [Learn how to preconnect to required origins](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Preconnect to required origins\n\n- Lighthouse audit: uses-rel-preconnect\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nConsider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. [Learn how to preconnect to required origins](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "server-response-time",
          "title": "Initial server response time was short",
          "description": "Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "4",
            "categoryName": "Hosting, Infrastructure, and Systems",
            "id": "11",
            "title": "Ensure infrastructure fits project requirements",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements",
            "subheading": "Maintain the infrastructure you require rather than over-provisioning. Autoscale to meet demand and preserve hardware resources."
          },
          "issueTemplate": "## Improve Initial server response time was short\n\n- Lighthouse audit: server-response-time\n- WSG guideline: 11 Ensure infrastructure fits project requirements\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements\n\n### Why this matters\nKeep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoids enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoids enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoids an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoids an excessive DOM size\n\n- Lighthouse audit: dom-size\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/management/articles/history-energy-research-and-development-administration",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/management/articles/history-energy-research-and-development-administration",
      "performanceScore": null,
      "bestPracticesScore": null,
      "transferBytes": 0,
      "co2Grams": 0,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [],
        "summary": {
          "pageStatus": "not-green",
          "externalOriginCount": 0,
          "greenCount": 0,
          "notGreenCount": 1,
          "unknownCount": 0
        }
      },
      "formValidation": {
        "score": 0,
        "urgency": "low",
        "pageElementOccurrences": 0,
        "uniqueElementsAssessed": 0,
        "reusedFromCacheCount": 0,
        "components": [],
        "recommendations": [
          {
            "title": "No major form validation risks detected",
            "urgency": "low",
            "detail": "Continue testing form flows to ensure error handling remains clear across templates."
          }
        ]
      },
      "metadata": {
        "score": 85,
        "urgency": "high",
        "checks": {
          "hasTitle": false,
          "hasLang": false,
          "hasDescription": false,
          "hasCanonical": false,
          "hasOpenGraphCore": false,
          "hasTwitterCard": false,
          "hasViewport": false,
          "hasCharset": false,
          "hasValidStructuredData": true,
          "hasInvalidStructuredData": false
        },
        "observed": {
          "title": "",
          "lang": "",
          "charset": "",
          "viewport": "",
          "description": "",
          "robots": "",
          "canonical": "",
          "ogTitle": "",
          "ogDescription": "",
          "ogType": "",
          "ogUrl": "",
          "twitterCard": "",
          "ldJsonCount": 0,
          "validLdJsonCount": 0,
          "invalidLdJsonCount": 0
        },
        "recommendations": [
          {
            "title": "Add document language metadata",
            "urgency": "high",
            "detail": "Set the html lang attribute for machine readability and localization tooling."
          },
          {
            "title": "Add canonical URL metadata",
            "urgency": "medium",
            "detail": "Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling."
          },
          {
            "title": "Add meta description",
            "urgency": "medium",
            "detail": "Provide a concise description to improve machine interpretation and preview quality."
          },
          {
            "title": "Complete Open Graph metadata",
            "urgency": "medium",
            "detail": "Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata."
          },
          {
            "title": "Add twitter:card metadata",
            "urgency": "low",
            "detail": "Include twitter card metadata to improve cross-platform machine-readable previews."
          }
        ]
      },
      "layoutAdaptation": {
        "score": 0,
        "urgency": "low",
        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 0,
          "tabletSmallTapTargets": 0,
          "fixedWidthOffenders": 0,
          "oversizedMedia": 0,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
            "viewportWidth": 980,
            "viewportHeight": 2121,
            "contentWidth": 980,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 0,
            "oversizedMedia": 0
          },
          {
            "device": "tablet",
            "viewportWidth": 980,
            "viewportHeight": 1411,
            "contentWidth": 980,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 0,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Layout adaptation looks healthy",
            "urgency": "low",
            "detail": "No major mobile or tablet layout issues were detected in this sample."
          }
        ]
      },
      "securityLight": {
        "score": 29,
        "urgency": "low",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 0,
          "externalScriptsWithoutIntegrity": 0,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "accept": "application/pdf",
            "accept-ranges": "bytes",
            "age": "0",
            "cache-control": "no-cache, private",
            "cache-tags": "HIT",
            "content-length": "475503",
            "content-security-policy": "",
            "content-type": "application/pdf",
            "date": "Sun, 22 Mar 2026 01:00:18 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"1ba91a6837004613fd88bb4b9effce9b\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"613839032\"",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_2_sn_123574241C678CA241FDE2C27890F6E4_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "L9lnaBUasLg4RQJ1EzeIqLZByGDQeoBtQA3tthXRQu6nVJIRehakAA==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-frame-options": "SAMEORIGIN",
            "x-varnish": "10983697 3532412",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 0,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 0,
        "checks": {
          "hasEffectiveTextCompression": true
        },
        "opportunities": [],
        "recommendations": [
          {
            "title": "No major compression opportunity detected",
            "urgency": "low",
            "detail": "Compression signals look healthy in current Lighthouse audits; continue enforcing compression and asset encoding in CI/CD."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 0,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 0,
        "totalEstimatedBlockingMs": 0,
        "opportunities": [],
        "recommendations": [
          {
            "title": "No obvious optimization bloat signals",
            "urgency": "low",
            "detail": "No major easy-win optimization opportunities were detected from current Lighthouse signals."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 0,
        "urgency": "low",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 0,
        "recommendations": [
          {
            "title": "No dependency maintenance warnings detected",
            "urgency": "low",
            "detail": "No vulnerable dependency flags were found for this page in the current lightweight checks."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0,
          "cacheSavingsBytes": 0
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "high",
            "detail": "Improve long-lived cache headers for immutable static assets."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "high",
            "detail": "Improve long-lived cache headers for immutable static assets."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "css": {
          "unusedBytes": 0,
          "ratio": 0,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 0,
          "duplicatedBytes": 0,
          "ratio": 0,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "estimatedDeferrableBytes": 0,
        "renderBlockingMs": 0,
        "breakdown": {
          "offscreenImageSavings": 0,
          "unusedJavascriptSavings": 0,
          "unusedCssSavings": 0
        },
        "candidates": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 0,
        "urgency": "low",
        "providerCount": 0,
        "requestCount": 0,
        "transferBytes": 0,
        "notGreenCount": 0,
        "unknownCount": 0,
        "scripts": [],
        "recommendations": [
          {
            "title": "No major third-party JavaScript risk signals",
            "urgency": "low",
            "detail": "Continue periodic reviews so third-party additions are assessed with the same rigor as first-party code."
          }
        ]
      },
      "redundancy": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "estimatedRedundantBytes": 0,
        "redundancyRatio": 0,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [],
        "recommendations": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
      },
      "modularization": {
        "score": 0,
        "urgency": "low",
        "totalTransferBytes": 0,
        "heavyRequestCount": 0,
        "heavyBytes": 0,
        "heavyRatio": 0,
        "heavyRequests": [],
        "groupedByType": [],
        "groupedByOrigin": [],
        "onDemandCandidates": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-rel-preconnect",
          "title": "Preconnect to required origins",
          "description": "Consider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. [Learn how to preconnect to required origins](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Preconnect to required origins\n\n- Lighthouse audit: uses-rel-preconnect\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nConsider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. [Learn how to preconnect to required origins](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "server-response-time",
          "title": "Initial server response time was short",
          "description": "Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "4",
            "categoryName": "Hosting, Infrastructure, and Systems",
            "id": "11",
            "title": "Ensure infrastructure fits project requirements",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements",
            "subheading": "Maintain the infrastructure you require rather than over-provisioning. Autoscale to meet demand and preserve hardware resources."
          },
          "issueTemplate": "## Improve Initial server response time was short\n\n- Lighthouse audit: server-response-time\n- WSG guideline: 11 Ensure infrastructure fits project requirements\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements\n\n### Why this matters\nKeep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoids enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoids enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoids an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoids an excessive DOM size\n\n- Lighthouse audit: dom-size\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/management/articles/federal-energy-administration",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/management/articles/federal-energy-administration",
      "performanceScore": null,
      "bestPracticesScore": null,
      "transferBytes": 0,
      "co2Grams": 0,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [],
        "summary": {
          "pageStatus": "not-green",
          "externalOriginCount": 0,
          "greenCount": 0,
          "notGreenCount": 1,
          "unknownCount": 0
        }
      },
      "formValidation": {
        "score": 0,
        "urgency": "low",
        "pageElementOccurrences": 0,
        "uniqueElementsAssessed": 0,
        "reusedFromCacheCount": 0,
        "components": [],
        "recommendations": [
          {
            "title": "No major form validation risks detected",
            "urgency": "low",
            "detail": "Continue testing form flows to ensure error handling remains clear across templates."
          }
        ]
      },
      "metadata": {
        "score": 85,
        "urgency": "high",
        "checks": {
          "hasTitle": false,
          "hasLang": false,
          "hasDescription": false,
          "hasCanonical": false,
          "hasOpenGraphCore": false,
          "hasTwitterCard": false,
          "hasViewport": false,
          "hasCharset": false,
          "hasValidStructuredData": true,
          "hasInvalidStructuredData": false
        },
        "observed": {
          "title": "",
          "lang": "",
          "charset": "",
          "viewport": "",
          "description": "",
          "robots": "",
          "canonical": "",
          "ogTitle": "",
          "ogDescription": "",
          "ogType": "",
          "ogUrl": "",
          "twitterCard": "",
          "ldJsonCount": 0,
          "validLdJsonCount": 0,
          "invalidLdJsonCount": 0
        },
        "recommendations": [
          {
            "title": "Add document language metadata",
            "urgency": "high",
            "detail": "Set the html lang attribute for machine readability and localization tooling."
          },
          {
            "title": "Add canonical URL metadata",
            "urgency": "medium",
            "detail": "Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling."
          },
          {
            "title": "Add meta description",
            "urgency": "medium",
            "detail": "Provide a concise description to improve machine interpretation and preview quality."
          },
          {
            "title": "Complete Open Graph metadata",
            "urgency": "medium",
            "detail": "Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata."
          },
          {
            "title": "Add twitter:card metadata",
            "urgency": "low",
            "detail": "Include twitter card metadata to improve cross-platform machine-readable previews."
          }
        ]
      },
      "layoutAdaptation": {
        "score": 0,
        "urgency": "low",
        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 0,
          "tabletSmallTapTargets": 0,
          "fixedWidthOffenders": 0,
          "oversizedMedia": 0,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
            "viewportWidth": 980,
            "viewportHeight": 2121,
            "contentWidth": 980,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 0,
            "oversizedMedia": 0
          },
          {
            "device": "tablet",
            "viewportWidth": 980,
            "viewportHeight": 1411,
            "contentWidth": 980,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 0,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Layout adaptation looks healthy",
            "urgency": "low",
            "detail": "No major mobile or tablet layout issues were detected in this sample."
          }
        ]
      },
      "securityLight": {
        "score": 29,
        "urgency": "low",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 0,
          "externalScriptsWithoutIntegrity": 0,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "accept": "application/pdf",
            "accept-ranges": "bytes",
            "age": "1017",
            "cache-control": "no-cache, private",
            "cache-tags": "HIT",
            "content-length": "349769",
            "content-security-policy": "",
            "content-type": "application/pdf",
            "date": "Sun, 22 Mar 2026 01:00:51 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_3_sn_61F2D833E6DA8AD74BE5DB91AB24EBF1_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "TNSaI0qAkAql2O2gVM6gWenxZrQa0CdbYsf2vG4XJfGE404tpQwMWQ==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Hit from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-frame-options": "SAMEORIGIN",
            "x-varnish": "11144189 10725036",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 0,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 0,
        "checks": {
          "hasEffectiveTextCompression": true
        },
        "opportunities": [],
        "recommendations": [
          {
            "title": "No major compression opportunity detected",
            "urgency": "low",
            "detail": "Compression signals look healthy in current Lighthouse audits; continue enforcing compression and asset encoding in CI/CD."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 0,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 0,
        "totalEstimatedBlockingMs": 0,
        "opportunities": [],
        "recommendations": [
          {
            "title": "No obvious optimization bloat signals",
            "urgency": "low",
            "detail": "No major easy-win optimization opportunities were detected from current Lighthouse signals."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 0,
        "urgency": "low",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 0,
        "recommendations": [
          {
            "title": "No dependency maintenance warnings detected",
            "urgency": "low",
            "detail": "No vulnerable dependency flags were found for this page in the current lightweight checks."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0,
          "cacheSavingsBytes": 0
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "high",
            "detail": "Improve long-lived cache headers for immutable static assets."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "high",
            "detail": "Improve long-lived cache headers for immutable static assets."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "css": {
          "unusedBytes": 0,
          "ratio": 0,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 0,
          "duplicatedBytes": 0,
          "ratio": 0,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "estimatedDeferrableBytes": 0,
        "renderBlockingMs": 0,
        "breakdown": {
          "offscreenImageSavings": 0,
          "unusedJavascriptSavings": 0,
          "unusedCssSavings": 0
        },
        "candidates": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 0,
        "urgency": "low",
        "providerCount": 0,
        "requestCount": 0,
        "transferBytes": 0,
        "notGreenCount": 0,
        "unknownCount": 0,
        "scripts": [],
        "recommendations": [
          {
            "title": "No major third-party JavaScript risk signals",
            "urgency": "low",
            "detail": "Continue periodic reviews so third-party additions are assessed with the same rigor as first-party code."
          }
        ]
      },
      "redundancy": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "estimatedRedundantBytes": 0,
        "redundancyRatio": 0,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [],
        "recommendations": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
      },
      "modularization": {
        "score": 0,
        "urgency": "low",
        "totalTransferBytes": 0,
        "heavyRequestCount": 0,
        "heavyBytes": 0,
        "heavyRatio": 0,
        "heavyRequests": [],
        "groupedByType": [],
        "groupedByOrigin": [],
        "onDemandCandidates": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
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            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 42,
        "urgency": "medium",
        "totalEstimatedSavingsBytes": 1365171.15,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "estimatedSavingsBytes": 940763.15,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "estimatedSavingsBytes": 418919,
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 918.71 KB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 409.10 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 3113311.15,
        "totalEstimatedBlockingMs": 258,
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 940763.15,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 919 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 907209,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 886 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 633375,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 619 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 418919,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 409 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 119111,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 116 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88445,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 86 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 258,
            "displayValue": "Est savings of 260 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 918.71 KB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 885.95 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "high",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 618.53 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 409.10 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 116.32 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.37 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 0,
        "urgency": "low",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 0,
        "recommendations": [
          {
            "title": "No dependency maintenance warnings detected",
            "urgency": "low",
            "detail": "No vulnerable dependency flags were found for this page in the current lightweight checks."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 230073.1248603351
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 224.68 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 224.68 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 13,
        "urgency": "high",
        "transferBytes": 3282611,
        "css": {
          "unusedBytes": 88445,
          "ratio": 0.026943491019801005,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 907209,
          "duplicatedBytes": 0,
          "ratio": 0.27636811062900846,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88445,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 907209,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 13,
        "urgency": "high",
        "transferBytes": 3282611,
        "estimatedDeferrableBytes": 1114765,
        "renderBlockingMs": 258,
        "breakdown": {
          "offscreenImageSavings": 119111,
          "unusedJavascriptSavings": 907209,
          "unusedCssSavings": 88445
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 119111,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 907209,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88445,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 258,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 689142,
            "url": "https://www.energy.gov/sites/default/files/styles/full_article_width/public/2017/06/f34/DOE_Seal_Color_1.jpg?itok=ICA2qENc",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348833,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.googletagmanager.com",
            "area": "script",
            "urgency": "medium",
            "estimatedSavingsBytes": 159221,
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 85,
        "urgency": "high",
        "providerCount": 5,
        "requestCount": 12,
        "transferBytes": 1197435,
        "notGreenCount": 2,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149765,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20793,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
              "error": null
            }
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          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.01,
          "displayValue": "8.5 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 8.5 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 886 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 886 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 86 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 86 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 919 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 919 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 409 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 409 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 260 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 260 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "server-response-time",
          "title": "Reduce initial server response time",
          "description": "Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).",
          "score": 0,
          "displayValue": "Root document took 1,400 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "4",
            "categoryName": "Hosting, Infrastructure, and Systems",
            "id": "11",
            "title": "Ensure infrastructure fits project requirements",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements",
            "subheading": "Maintain the infrastructure you require rather than over-provisioning. Autoscale to meet demand and preserve hardware resources."
          },
          "issueTemplate": "## Improve Reduce initial server response time\n\n- Lighthouse audit: server-response-time\n- Current value: Root document took 1,400 ms\n- WSG guideline: 11 Ensure infrastructure fits project requirements\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements\n\n### Why this matters\nKeep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.74,
          "displayValue": "4.4 s",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 4.4 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 116 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 116 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 3,206 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 3,206 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/lm/articles/fehner-and-holl-department-energy-1977-1994-summary-history",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/lm/articles/fehner-and-holl-department-energy-1977-1994-summary-history",
      "performanceScore": null,
      "bestPracticesScore": null,
      "transferBytes": 0,
      "co2Grams": 0,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [],
        "summary": {
          "pageStatus": "not-green",
          "externalOriginCount": 0,
          "greenCount": 0,
          "notGreenCount": 1,
          "unknownCount": 0
        }
      },
      "formValidation": {
        "score": 0,
        "urgency": "low",
        "pageElementOccurrences": 0,
        "uniqueElementsAssessed": 0,
        "reusedFromCacheCount": 0,
        "components": [],
        "recommendations": [
          {
            "title": "No major form validation risks detected",
            "urgency": "low",
            "detail": "Continue testing form flows to ensure error handling remains clear across templates."
          }
        ]
      },
      "metadata": {
        "score": 85,
        "urgency": "high",
        "checks": {
          "hasTitle": false,
          "hasLang": false,
          "hasDescription": false,
          "hasCanonical": false,
          "hasOpenGraphCore": false,
          "hasTwitterCard": false,
          "hasViewport": false,
          "hasCharset": false,
          "hasValidStructuredData": true,
          "hasInvalidStructuredData": false
        },
        "observed": {
          "title": "",
          "lang": "",
          "charset": "",
          "viewport": "",
          "description": "",
          "robots": "",
          "canonical": "",
          "ogTitle": "",
          "ogDescription": "",
          "ogType": "",
          "ogUrl": "",
          "twitterCard": "",
          "ldJsonCount": 0,
          "validLdJsonCount": 0,
          "invalidLdJsonCount": 0
        },
        "recommendations": [
          {
            "title": "Add document language metadata",
            "urgency": "high",
            "detail": "Set the html lang attribute for machine readability and localization tooling."
          },
          {
            "title": "Add canonical URL metadata",
            "urgency": "medium",
            "detail": "Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling."
          },
          {
            "title": "Add meta description",
            "urgency": "medium",
            "detail": "Provide a concise description to improve machine interpretation and preview quality."
          },
          {
            "title": "Complete Open Graph metadata",
            "urgency": "medium",
            "detail": "Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata."
          },
          {
            "title": "Add twitter:card metadata",
            "urgency": "low",
            "detail": "Include twitter card metadata to improve cross-platform machine-readable previews."
          }
        ]
      },
      "layoutAdaptation": {
        "score": 0,
        "urgency": "low",
        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 0,
          "tabletSmallTapTargets": 0,
          "fixedWidthOffenders": 0,
          "oversizedMedia": 0,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
            "viewportWidth": 980,
            "viewportHeight": 2121,
            "contentWidth": 980,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 0,
            "oversizedMedia": 0
          },
          {
            "device": "tablet",
            "viewportWidth": 980,
            "viewportHeight": 1411,
            "contentWidth": 980,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 0,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Layout adaptation looks healthy",
            "urgency": "low",
            "detail": "No major mobile or tablet layout issues were detected in this sample."
          }
        ]
      },
      "securityLight": {
        "score": 29,
        "urgency": "low",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 0,
          "externalScriptsWithoutIntegrity": 0,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "accept": "application/pdf",
            "accept-ranges": "bytes",
            "age": "0",
            "cache-control": "no-cache, private",
            "cache-tags": "MISS",
            "content-length": "23224640",
            "content-security-policy": "",
            "content-type": "application/pdf",
            "date": "Sun, 22 Mar 2026 01:01:40 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"d3836ee684a2332d959189ee162f6cc4\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"-586072648\"",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_3_sn_4CDD339EF9146F44C76DBEDEAAD8CF41_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "Hqveo-QS-P_JUbNFAJqPLkB8LEArZrDpD4RgR5a2kitwdeCgRZGdqg==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-frame-options": "SAMEORIGIN",
            "x-varnish": "10358104",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 0,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 0,
        "checks": {
          "hasEffectiveTextCompression": true
        },
        "opportunities": [],
        "recommendations": [
          {
            "title": "No major compression opportunity detected",
            "urgency": "low",
            "detail": "Compression signals look healthy in current Lighthouse audits; continue enforcing compression and asset encoding in CI/CD."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 0,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 0,
        "totalEstimatedBlockingMs": 0,
        "opportunities": [],
        "recommendations": [
          {
            "title": "No obvious optimization bloat signals",
            "urgency": "low",
            "detail": "No major easy-win optimization opportunities were detected from current Lighthouse signals."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 0,
        "urgency": "low",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 0,
        "recommendations": [
          {
            "title": "No dependency maintenance warnings detected",
            "urgency": "low",
            "detail": "No vulnerable dependency flags were found for this page in the current lightweight checks."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0,
          "cacheSavingsBytes": 0
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "high",
            "detail": "Improve long-lived cache headers for immutable static assets."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "high",
            "detail": "Improve long-lived cache headers for immutable static assets."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "css": {
          "unusedBytes": 0,
          "ratio": 0,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 0,
          "duplicatedBytes": 0,
          "ratio": 0,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "estimatedDeferrableBytes": 0,
        "renderBlockingMs": 0,
        "breakdown": {
          "offscreenImageSavings": 0,
          "unusedJavascriptSavings": 0,
          "unusedCssSavings": 0
        },
        "candidates": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 0,
        "urgency": "low",
        "providerCount": 0,
        "requestCount": 0,
        "transferBytes": 0,
        "notGreenCount": 0,
        "unknownCount": 0,
        "scripts": [],
        "recommendations": [
          {
            "title": "No major third-party JavaScript risk signals",
            "urgency": "low",
            "detail": "Continue periodic reviews so third-party additions are assessed with the same rigor as first-party code."
          }
        ]
      },
      "redundancy": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "estimatedRedundantBytes": 0,
        "redundancyRatio": 0,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [],
        "recommendations": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
      },
      "modularization": {
        "score": 0,
        "urgency": "low",
        "totalTransferBytes": 0,
        "heavyRequestCount": 0,
        "heavyBytes": 0,
        "heavyRatio": 0,
        "heavyRequests": [],
        "groupedByType": [],
        "groupedByOrigin": [],
        "onDemandCandidates": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-rel-preconnect",
          "title": "Preconnect to required origins",
          "description": "Consider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. [Learn how to preconnect to required origins](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Preconnect to required origins\n\n- Lighthouse audit: uses-rel-preconnect\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nConsider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. [Learn how to preconnect to required origins](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "server-response-time",
          "title": "Initial server response time was short",
          "description": "Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "4",
            "categoryName": "Hosting, Infrastructure, and Systems",
            "id": "11",
            "title": "Ensure infrastructure fits project requirements",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements",
            "subheading": "Maintain the infrastructure you require rather than over-provisioning. Autoscale to meet demand and preserve hardware resources."
          },
          "issueTemplate": "## Improve Initial server response time was short\n\n- Lighthouse audit: server-response-time\n- WSG guideline: 11 Ensure infrastructure fits project requirements\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#ensure-infrastructure-fits-project-requirements\n\n### Why this matters\nKeep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoids enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoids enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoids an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoids an excessive DOM size\n\n- Lighthouse audit: dom-size\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    },
    {
      "url": "https://www.energy.gov/management/articles/gosling-and-fehner-closing-circle",
      "status": "ok",
      "finalUrl": "https://www.energy.gov/management/articles/gosling-and-fehner-closing-circle",
      "performanceScore": null,
      "bestPracticesScore": null,
      "transferBytes": 0,
      "co2Grams": 0,
      "greenWeb": {
        "page": {
          "hostname": "www.energy.gov",
          "checked": true,
          "status": "not-green",
          "green": false,
          "hostedBy": null,
          "hostedByWebsite": null,
          "listedProvider": null,
          "partner": null,
          "modified": "2026-03-22T00:37:04.494037",
          "supportingDocuments": [],
          "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.energy.gov",
          "error": null
        },
        "externalAssets": [],
        "summary": {
          "pageStatus": "not-green",
          "externalOriginCount": 0,
          "greenCount": 0,
          "notGreenCount": 1,
          "unknownCount": 0
        }
      },
      "formValidation": {
        "score": 0,
        "urgency": "low",
        "pageElementOccurrences": 0,
        "uniqueElementsAssessed": 0,
        "reusedFromCacheCount": 0,
        "components": [],
        "recommendations": [
          {
            "title": "No major form validation risks detected",
            "urgency": "low",
            "detail": "Continue testing form flows to ensure error handling remains clear across templates."
          }
        ]
      },
      "metadata": {
        "score": 85,
        "urgency": "high",
        "checks": {
          "hasTitle": false,
          "hasLang": false,
          "hasDescription": false,
          "hasCanonical": false,
          "hasOpenGraphCore": false,
          "hasTwitterCard": false,
          "hasViewport": false,
          "hasCharset": false,
          "hasValidStructuredData": true,
          "hasInvalidStructuredData": false
        },
        "observed": {
          "title": "",
          "lang": "",
          "charset": "",
          "viewport": "",
          "description": "",
          "robots": "",
          "canonical": "",
          "ogTitle": "",
          "ogDescription": "",
          "ogType": "",
          "ogUrl": "",
          "twitterCard": "",
          "ldJsonCount": 0,
          "validLdJsonCount": 0,
          "invalidLdJsonCount": 0
        },
        "recommendations": [
          {
            "title": "Add document language metadata",
            "urgency": "high",
            "detail": "Set the html lang attribute for machine readability and localization tooling."
          },
          {
            "title": "Add canonical URL metadata",
            "urgency": "medium",
            "detail": "Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling."
          },
          {
            "title": "Add meta description",
            "urgency": "medium",
            "detail": "Provide a concise description to improve machine interpretation and preview quality."
          },
          {
            "title": "Complete Open Graph metadata",
            "urgency": "medium",
            "detail": "Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata."
          },
          {
            "title": "Add twitter:card metadata",
            "urgency": "low",
            "detail": "Include twitter card metadata to improve cross-platform machine-readable previews."
          }
        ]
      },
      "layoutAdaptation": {
        "score": 0,
        "urgency": "low",
        "checks": {
          "testedMobile": true,
          "testedTablet": true,
          "horizontalOverflowOnMobile": false,
          "horizontalOverflowOnTablet": false,
          "mobileSmallTapTargets": 0,
          "tabletSmallTapTargets": 0,
          "fixedWidthOffenders": 0,
          "oversizedMedia": 0,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
            "viewportWidth": 980,
            "viewportHeight": 2121,
            "contentWidth": 980,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 0,
            "oversizedMedia": 0
          },
          {
            "device": "tablet",
            "viewportWidth": 980,
            "viewportHeight": 1411,
            "contentWidth": 980,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 0,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Layout adaptation looks healthy",
            "urgency": "low",
            "detail": "No major mobile or tablet layout issues were detected in this sample."
          }
        ]
      },
      "securityLight": {
        "score": 29,
        "urgency": "low",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 0,
          "externalScriptsWithoutIntegrity": 0,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "accept": "application/pdf",
            "accept-ranges": "bytes",
            "cache-control": "no-cache, private",
            "cache-tags": "MISS",
            "content-length": "6595462",
            "content-security-policy": "",
            "content-type": "application/pdf",
            "date": "Sun, 22 Mar 2026 01:02:13 GMT",
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            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
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            "x-cache": "Hit from cloudfront",
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            "x-drupal-cache": "HIT",
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          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
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            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
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          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
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          {
            "path": "/manifest.webmanifest",
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        "recommendations": [
          {
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      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
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        "checks": {
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          {
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      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
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        "opportunities": [],
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          {
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            "detail": "No major easy-win optimization opportunities were detected from current Lighthouse signals."
          }
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      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
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        "vulnerableLibraries": [],
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        "recommendations": [
          {
            "title": "No dependency maintenance warnings detected",
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          }
        ]
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      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
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          "cacheSavingsBytes": 0
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
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          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
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            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "high",
            "detail": "Improve long-lived cache headers for immutable static assets."
          }
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          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
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          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "high",
            "detail": "Improve long-lived cache headers for immutable static assets."
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        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
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        "urgency": "low",
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        "css": {
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          "ratio": 0,
          "auditId": "unused-css-rules"
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          "duplicatedBytes": 0,
          "ratio": 0,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
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        },
        "html": {
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          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
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      "nonCriticalResources": {
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        "urgency": "low",
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        "renderBlockingMs": 0,
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          "unusedJavascriptSavings": 0,
          "unusedCssSavings": 0
        },
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        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 0,
        "urgency": "low",
        "providerCount": 0,
        "requestCount": 0,
        "transferBytes": 0,
        "notGreenCount": 0,
        "unknownCount": 0,
        "scripts": [],
        "recommendations": [
          {
            "title": "No major third-party JavaScript risk signals",
            "urgency": "low",
            "detail": "Continue periodic reviews so third-party additions are assessed with the same rigor as first-party code."
          }
        ]
      },
      "redundancy": {
        "score": 0,
        "urgency": "low",
        "transferBytes": 0,
        "estimatedRedundantBytes": 0,
        "redundancyRatio": 0,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [],
        "recommendations": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
      },
      "modularization": {
        "score": 0,
        "urgency": "low",
        "totalTransferBytes": 0,
        "heavyRequestCount": 0,
        "heavyBytes": 0,
        "heavyRatio": 0,
        "heavyRequests": [],
        "groupedByType": [],
        "groupedByOrigin": [],
        "onDemandCandidates": [],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": null,
          "displayValue": "",
          "impact": "investigate",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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        "urgency": "high",
        "totalEstimatedSavingsBytes": 1152747,
        "totalEstimatedBlockingMs": 215,
        "opportunities": [
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 906687,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 885 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88704,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 87 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 71216,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 70 KiB",
            "urgency": "medium",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 215,
            "displayValue": "Est savings of 220 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 885.44 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.63 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "medium",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 69.55 KB."
          },
          {
            "title": "Enable text compression",
            "urgency": "low",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 5.36 KB."
          },
          {
            "title": "Eliminate render-blocking resources",
            "urgency": "low",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 215 ms."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 123931.34329608937
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 121.03 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 121.03 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 21,
        "urgency": "high",
        "transferBytes": 2119885,
        "css": {
          "unusedBytes": 88704,
          "ratio": 0.04184377926161089,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 906687,
          "duplicatedBytes": 0,
          "ratio": 0.4277057481891706,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88704,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 906687,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 16,
        "urgency": "high",
        "transferBytes": 2119885,
        "estimatedDeferrableBytes": 995391,
        "renderBlockingMs": 215,
        "breakdown": {
          "offscreenImageSavings": 0,
          "unusedJavascriptSavings": 906687,
          "unusedCssSavings": 88704
        },
        "candidates": [
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 906687,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88704,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 215,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348778,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.googletagmanager.com",
            "area": "script",
            "urgency": "medium",
            "estimatedSavingsBytes": 159216,
            "url": "https://www.googletagmanager.com/gtag/js?id=G-VEJ5DJ7LND&cx=c&gtm=4e63i0",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224925,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149760,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26730,
            "sampleUrl": "https://scripts.clarity.ms/0.8.57/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
            }
          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20793,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
              "error": null
            }
          },
          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17256,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
              "error": null
            }
          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9498,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
              "error": null
            }
          },
          {
            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 888,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
              "error": null
            }
          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 33,
        "urgency": "high",
        "transferBytes": 2119885,
        "estimatedRedundantBytes": 995391,
        "redundancyRatio": 0.46954952745078155,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 906687,
            "displayValue": "Est savings of 885 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 88704,
            "displayValue": "Est savings of 87 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
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            "title": "Set goals based on performance and energy impact",
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          "title": "Modularize bandwidth-heavy components",
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          "impact": "high",
          "wsg": {
            "categoryId": "3",
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            "title": "Set goals based on performance and energy impact",
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          "impact": "high",
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            "categoryName": "Web Development",
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            "title": "Use dependencies appropriately and ensure maintenance",
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          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 887 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
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          "impact": "high",
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          "impact": "high",
          "wsg": {
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            "title": "Set goals based on performance and energy impact",
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          "title": "Defer offscreen images",
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          "score": 0.5,
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            "categoryId": "3",
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          "oversizedMedia": 0,
          "scanErrors": 0
        },
        "perDevice": [
          {
            "device": "mobile",
            "viewportWidth": 390,
            "viewportHeight": 844,
            "contentWidth": 390,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 49,
            "oversizedMedia": 0
          },
          {
            "device": "tablet",
            "viewportWidth": 820,
            "viewportHeight": 1180,
            "contentWidth": 820,
            "horizontalOverflowPx": 0,
            "hasHorizontalOverflow": false,
            "fixedWidthOffenders": 0,
            "smallTapTargets": 57,
            "oversizedMedia": 0
          }
        ],
        "recommendations": [
          {
            "title": "Increase touch target sizes",
            "urgency": "high",
            "detail": "Ensure interactive controls are at least 44x44 CSS px. Detected 49 small targets on mobile and 57 on tablet."
          }
        ]
      },
      "securityLight": {
        "score": 37,
        "urgency": "medium",
        "checks": {
          "isHttps": true,
          "hasHsts": true,
          "hasCsp": false,
          "hasXContentTypeOptions": true,
          "hasReferrerPolicy": true,
          "hasPermissionsPolicy": false,
          "exposesServerFingerprint": true,
          "externalScriptCount": 4,
          "externalScriptsWithoutIntegrity": 4,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "age": "0",
            "cache-control": "max-age=2764800, public",
            "cache-tags": "MISS",
            "content-language": "en",
            "content-security-policy": "",
            "date": "Sun, 22 Mar 2026 01:02:55 GMT",
            "etag": "\"1774131378:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
            "last-modified": "Sat, 21 Mar 2026 22:16:17 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"e2d1441546781b376bcf57719a5d4bed\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"870874299\"",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_2_sn_BD19E54E6FBC9C2621A12829BA6DC6DF_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "3bbU5BXIkrSDHZGCj_R5-OrzGJOY0LNO6p_o40uFo5ygQzae7wAMaA==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "9578183",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 33,
        "urgency": "medium",
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        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "estimatedSavingsBytes": 779539.9000000001,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "estimatedSavingsBytes": 279175,
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 761.27 KB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 272.63 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 2204448.9000000004,
        "totalEstimatedBlockingMs": 274,
        "opportunities": [
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 907800,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 887 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 779539.9000000001,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 761 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 279175,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 273 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 88757,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 87 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 63037,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 62 KiB",
            "urgency": "medium",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 274,
            "displayValue": "Est savings of 270 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 886.52 KB."
          },
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 761.27 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 272.63 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 86.68 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "medium",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 61.56 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 235418.8379888267
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 229.90 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 229.90 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 13,
        "urgency": "high",
        "transferBytes": 3256195,
        "css": {
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          "ratio": 0.02725788842498683,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 907800,
          "duplicatedBytes": 0,
          "ratio": 0.2787916571335562,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
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          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 88757,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 907800,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 12,
        "urgency": "high",
        "transferBytes": 3256195,
        "estimatedDeferrableBytes": 1059594,
        "renderBlockingMs": 274,
        "breakdown": {
          "offscreenImageSavings": 63037,
          "unusedJavascriptSavings": 907800,
          "unusedCssSavings": 88757
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "medium",
            "estimatedSavingsBytes": 63037,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 907800,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 88757,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 274,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 600408,
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2017/06/f34/Grils%2520at%2520Y-12%2520Gate%2520crop_7_0.jpg?itok=aiNatLT3",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348794,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224883,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149765,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
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          "impact": "high",
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            "title": "Add integrity attributes for external dependencies",
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            "detail": "Provide an offline fallback strategy for key pages and shell assets."
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            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
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          },
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              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
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          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 913619,
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            "wsg": {
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              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
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          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 87103,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
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          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
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      "modularization": {
        "score": 49,
        "urgency": "high",
        "totalTransferBytes": 5764258,
        "heavyRequestCount": 20,
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            "transferSize": 57907,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.youtube.com"
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        "groupedByType": [
          {
            "resourceType": "script",
            "count": 14,
            "transferBytes": 3160007
          },
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            "count": 4,
            "transferBytes": 1656571
          },
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            "resourceType": "stylesheet",
            "count": 2,
            "transferBytes": 149864
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        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 7,
            "transferBytes": 2195627
          },
          {
            "domain": "www.youtube.com",
            "count": 5,
            "transferBytes": 1621055
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149760
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 350550,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 913619,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 847867,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/supercomputing-homepage-hero_0.jpg?itok=BkJNEVzY",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.youtube.com",
            "urgency": "high",
            "estimatedSavingsBytes": 702224,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_ias.vflset/en_US/base.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "15.3 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 15.3 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.29,
          "displayValue": "7.3 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 7.3 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 892 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 892 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 85 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 85 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,202 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,202 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 449 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 449 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 160 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 160 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-rel-preconnect",
          "title": "Preconnect to required origins",
          "description": "Consider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. [Learn how to preconnect to required origins](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/).",
          "score": 0,
          "displayValue": "Est savings of 180 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
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            "title": "Serve images in next-gen formats",
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            "estimatedSavingsBytes": 1457826.5,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,424 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 915647,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 894 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 285181,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 278 KiB",
            "urgency": "high",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 270534,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 264 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87107,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 85 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 162,
            "displayValue": "Est savings of 160 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.39 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 894.19 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "high",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 278.50 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 264.19 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.07 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 290401.8114525138
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        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 283.60 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 283.60 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 12,
        "urgency": "high",
        "transferBytes": 3817922,
        "css": {
          "unusedBytes": 87107,
          "ratio": 0.022815290621442764,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 915647,
          "duplicatedBytes": 0,
          "ratio": 0.23982862929101223,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87107,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 915647,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 12,
        "urgency": "high",
        "transferBytes": 3817922,
        "estimatedDeferrableBytes": 1287935,
        "renderBlockingMs": 162,
        "breakdown": {
          "offscreenImageSavings": 285181,
          "unusedJavascriptSavings": 915647,
          "unusedCssSavings": 87107
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 285181,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 915647,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87107,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 162,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 641545,
            "url": "https://www.energy.gov/sites/default/files/styles/collection_tall/public/2024-07/doe-explains-quantum-computing.png?itok=nBc0ODHJ",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348870,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
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        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1224878,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
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            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1149760,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
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                  "title": "Sustainability at Google",
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                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
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                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26729,
            "sampleUrl": "https://scripts.clarity.ms/0.8.57/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
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          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20793,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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              "modified": "2025-11-25T09:52:18",
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                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
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                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
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                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17256,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
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                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
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            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9498,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
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              "modified": "2026-03-21T14:34:28.933004",
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            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 842,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
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              "status": "not-green",
              "green": false,
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              "partner": null,
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        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
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        ]
      },
      "redundancy": {
        "score": 22,
        "urgency": "high",
        "transferBytes": 3817922,
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        "redundancyRatio": 0.262643919912455,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 915647,
            "displayValue": "Est savings of 894 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 87107,
            "displayValue": "Est savings of 85 KiB"
          }
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        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 915647,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 87107,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
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          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
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      "modularization": {
        "score": 52,
        "urgency": "high",
        "totalTransferBytes": 3817922,
        "heavyRequestCount": 16,
        "heavyBytes": 3387549,
        "heavyRatio": 0.8872755912771397,
        "heavyRequests": [
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            "transferSize": 148120,
            "resourceType": "script",
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            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L",
            "transferSize": 148102,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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            "transferSize": 136245,
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            "domain": "www.googletagmanager.com"
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            "transferSize": 126169,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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            "transferSize": 115795,
            "resourceType": "script",
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            "domain": "www.googletagmanager.com"
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          {
            "url": "https://www.energy.gov/sites/default/files/js/js_zKKF6aMALZ8I4xNBLCovOiSmbp8brvk35JuqYftzvUo.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJxtjUEOwjAMBD9U4Qv_iUxipVYtJ7JNIL-nhwYuHHd3RlswUHCSwYN2HNzMN1KyOhMqygzODhXviQZppDDMB2v9w7RWhX7FInLTOE24Ir1DWI-11jYA3Sm-vBNa3gF73y4Wij07ym2pzkEvLueXkAWwcnwAqu9OzQ",
            "transferSize": 98295,
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            "transferSize": 91956,
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        "groupedByType": [
          {
            "resourceType": "image",
            "count": 5,
            "transferBytes": 1698668
          },
          {
            "resourceType": "script",
            "count": 10,
            "transferBytes": 1596925
          },
          {
            "resourceType": "stylesheet",
            "count": 1,
            "transferBytes": 91956
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 8,
            "transferBytes": 2237789
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149760
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        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 285181,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 915647,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 641545,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/collection_tall/public/2024-07/doe-explains-quantum-computing.png?itok=nBc0ODHJ",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348870,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0.08,
          "displayValue": "6.6 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 6.6 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 894 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 894 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 85 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 85 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,424 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,424 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 264 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 264 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 160 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 160 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 278 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 278 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
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            "displayValue": "Est savings of 190 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.23 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 893.16 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 443.64 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "high",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 342.33 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.09 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 293662.2337988826
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 286.78 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 286.78 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 14,
        "urgency": "high",
        "transferBytes": 3851559,
        "css": {
          "unusedBytes": 87130,
          "ratio": 0.022622008386733786,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 914596,
          "duplicatedBytes": 0,
          "ratio": 0.23746124621224807,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0.125,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87130,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 914596,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 13,
        "urgency": "high",
        "transferBytes": 3851559,
        "estimatedDeferrableBytes": 1352276,
        "renderBlockingMs": 192,
        "breakdown": {
          "offscreenImageSavings": 350550,
          "unusedJavascriptSavings": 914596,
          "unusedCssSavings": 87130
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 350550,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914596,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87130,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 192,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 701593,
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/space-exploration-homepage-hero_0.jpg?itok=LHsWvcXx",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348771,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 6,
        "requestCount": 13,
        "transferBytes": 1225304,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.googletagmanager.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1150186,
            "sampleUrl": "https://www.googletagmanager.com/gtag/js?id=G-GS1KB7R8DY",
            "greenCheck": {
              "hostname": "www.googletagmanager.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-03-06T00:36:18",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.googletagmanager.com",
              "error": null
            }
          },
          {
            "hostname": "scripts.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 26729,
            "sampleUrl": "https://scripts.clarity.ms/0.8.57/clarity.js",
            "greenCheck": {
              "hostname": "scripts.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T20:44:41.287420",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/scripts.clarity.ms",
              "error": null
            }
          },
          {
            "hostname": "www.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 20794,
            "sampleUrl": "https://www.google-analytics.com/analytics.js",
            "greenCheck": {
              "hostname": "www.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:52:18",
              "supportingDocuments": [
                {
                  "id": 108,
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                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.google-analytics.com",
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          },
          {
            "hostname": "ssl.google-analytics.com",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 17256,
            "sampleUrl": "https://ssl.google-analytics.com/ga.js",
            "greenCheck": {
              "hostname": "ssl.google-analytics.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2025-11-25T09:13:07",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
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                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
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                {
                  "id": 1365,
                  "title": "Alphabet 2024 CDP Climate Change Response",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-2024-cdp-climate-change-response.pdf"
                },
                {
                  "id": 1366,
                  "title": "Google 2024 Supplier Responsibility Report.",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-supplier-responsibility-report.pdf"
                },
                {
                  "id": 1367,
                  "title": "Alphabet FY2023 Environmental Indicators Assurance Letter",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/alphabet-fy2023-environmental-indicators-assurance-letter.pdf"
                },
                {
                  "id": 1368,
                  "title": "3Degrees Cloud Services Review Statement",
                  "link": "https://services.google.com/fh/files/misc/3degrees_cloud_services_review_statement_final.pdf"
                }
              ],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/ssl.google-analytics.com",
              "error": null
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          },
          {
            "hostname": "dap.digitalgov.gov",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 9497,
            "sampleUrl": "https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=DOE",
            "greenCheck": {
              "hostname": "dap.digitalgov.gov",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
              "listedProvider": null,
              "partner": null,
              "modified": "2026-03-21T14:34:28.933004",
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              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/dap.digitalgov.gov",
              "error": null
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          },
          {
            "hostname": "www.clarity.ms",
            "resourceType": "script",
            "requestCount": 1,
            "transferBytes": 842,
            "sampleUrl": "https://www.clarity.ms/tag/k92idz2uaf?ref=gtm2",
            "greenCheck": {
              "hostname": "www.clarity.ms",
              "checked": true,
              "status": "not-green",
              "green": false,
              "hostedBy": null,
              "hostedByWebsite": null,
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              "partner": null,
              "modified": "2026-03-21T14:43:53.340642",
              "supportingDocuments": [],
              "source": "https://api.thegreenwebfoundation.org/api/v3/greencheck/www.clarity.ms",
              "error": null
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          }
        ],
        "recommendations": [
          {
            "title": "Maintain a third-party JavaScript inventory",
            "urgency": "high",
            "detail": "Track 6 third-party script origin(s) and assign an owner plus business justification for each."
          },
          {
            "title": "Reduce third-party script payload and requests",
            "urgency": "high",
            "detail": "Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction."
          },
          {
            "title": "Prioritize greener alternatives for third-party providers",
            "urgency": "high",
            "detail": "3 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset."
          }
        ]
      },
      "redundancy": {
        "score": 32,
        "urgency": "high",
        "transferBytes": 3851559,
        "estimatedRedundantBytes": 1001726,
        "redundancyRatio": 0.26008325459898185,
        "relatedAuditIds": [
          "unused-css-rules",
          "unused-javascript",
          "duplicated-javascript",
          "dom-size",
          "uses-text-compression",
          "unminified-css",
          "unminified-javascript"
        ],
        "wasteByAudit": [
          {
            "auditId": "unused-javascript",
            "title": "Reduce unused JavaScript",
            "savingsBytes": 914596,
            "displayValue": "Est savings of 893 KiB"
          },
          {
            "auditId": "unused-css-rules",
            "title": "Reduce unused CSS",
            "savingsBytes": 87130,
            "displayValue": "Est savings of 85 KiB"
          }
        ],
        "recommendations": [
          {
            "title": "Reduce unused javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 914596,
            "auditId": "unused-javascript",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce unused css",
            "urgency": "medium",
            "estimatedSavingsBytes": 87130,
            "auditId": "unused-css-rules",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Enable and verify text compression",
            "urgency": "medium",
            "estimatedSavingsBytes": 5489,
            "auditId": "uses-text-compression",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          },
          {
            "title": "Reduce DOM complexity and redundant markup",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "auditId": "dom-size",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "2",
              "title": "Remove unnecessary or redundant information",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
              "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "2",
          "title": "Remove unnecessary or redundant information",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
          "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
        }
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      "modularization": {
        "score": 52,
        "urgency": "high",
        "totalTransferBytes": 3851559,
        "heavyRequestCount": 16,
        "heavyBytes": 3421235,
        "heavyRatio": 0.8882727747387487,
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            "url": "https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L",
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            "transferSize": 115795,
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            "count": 5,
            "transferBytes": 1732032
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            "transferBytes": 1597245
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            "transferBytes": 91958
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        "groupedByOrigin": [
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            "count": 8,
            "transferBytes": 2271049
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            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1150186
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        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 350550,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 914596,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 701593,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2024-11/space-exploration-homepage-hero_0.jpg?itok=LHsWvcXx",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 348771,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "11.6 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 11.6 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 893 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 893 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 85 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 85 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,255 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,255 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 444 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 444 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 190 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 190 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 342 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 342 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 3,761 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 3,761 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
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          "externalScriptCount": 4,
          "externalScriptsWithoutIntegrity": 4,
          "vulnerableLibraryCount": 0
        },
        "observed": {
          "headers": {
            "age": "0",
            "cache-control": "max-age=2764800, public",
            "cache-tags": "HIT",
            "content-language": "en",
            "content-security-policy": "",
            "date": "Sun, 22 Mar 2026 01:03:56 GMT",
            "etag": "\"1774134257:dtagent10331260218130851G5N9\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
            "last-modified": "Sat, 21 Mar 2026 23:04:16 GMT",
            "nrgenv": "nrg-prod",
            "referrer-policy": "same-origin",
            "server": "Apache",
            "server-timing": "dtTrId;desc=\"c0f1b99d58cec0094b35a0e429de873c\", dtSInfo;desc=\"0\"\ndtRpid;desc=\"-523014266\"",
            "set-cookie": "dtCookiedgtcdnr2=v_4_srv_3_sn_628A58E7BD70179C8EB87BD28C174E02_perc_100000_ol_0_mul_1_app-3Acff6532c80af1c10_1; Path=/; Domain=.energy.gov",
            "strict-transport-security": "max-age=63072000; includeSubdomains; preload",
            "vary": "Cookie,Accept-Encoding",
            "via": "1.1 3801c1756029d7785c1b1ccb7897ebfc.cloudfront.net (CloudFront)",
            "x-amz-cf-id": "T3zhwpCDtBzbc-j6-C6R_gRypY4gGGDYgP3vd99rlmlLleOi8nBfxA==",
            "x-amz-cf-pop": "IAD61-P4",
            "x-cache": "Miss from cloudfront",
            "x-content-type-options": "nosniff",
            "x-drupal-cache": "HIT",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "x-oneagent-js-injection": "true",
            "x-ruxit-js-agent": "true",
            "x-varnish": "9616680 10294571",
            "x-xss-protection": "1; mode=block"
          },
          "vulnerableLibrariesAuditScore": null,
          "vulnerableLibraries": []
        },
        "recommendations": [
          {
            "title": "Add a Content-Security-Policy header",
            "urgency": "high",
            "detail": "Add an appropriate CSP to reduce script injection and resource loading risk."
          },
          {
            "title": "Define a Permissions-Policy",
            "urgency": "low",
            "detail": "Restrict browser capabilities to only what the application needs."
          },
          {
            "title": "Add SRI to external scripts",
            "urgency": "medium",
            "detail": "4 external script tag(s) are missing integrity attributes."
          }
        ]
      },
      "expectedFiles": {
        "score": 30,
        "urgency": "medium",
        "origin": "https://www.energy.gov",
        "checks": [
          {
            "path": "/robots.txt",
            "kind": "expected",
            "url": "https://www.energy.gov/robots.txt",
            "found": true,
            "status": 200,
            "contentType": "text/plain; charset=UTF-8"
          },
          {
            "path": "/sitemap.xml",
            "kind": "beneficial",
            "url": "https://www.energy.gov/sitemap.xml",
            "found": true,
            "status": 200,
            "contentType": "application/xml; charset=utf-8"
          },
          {
            "path": "/.well-known/security.txt",
            "kind": "beneficial",
            "url": "https://www.energy.gov/.well-known/security.txt",
            "found": false,
            "status": 403,
            "contentType": "text/html; charset=iso-8859-1"
          },
          {
            "path": "/manifest.webmanifest",
            "kind": "beneficial",
            "url": "https://www.energy.gov/manifest.webmanifest",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=UTF-8"
          },
          {
            "path": "/favicon.ico",
            "kind": "beneficial",
            "url": "https://www.energy.gov/favicon.ico",
            "found": false,
            "status": 404,
            "contentType": "text/html; charset=iso-8859-1"
          }
        ],
        "recommendations": [
          {
            "title": "Add beneficial discoverability and maintenance files",
            "urgency": "medium",
            "detail": "Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico."
          }
        ]
      },
      "compressionOpportunities": {
        "wsgReference": {
          "title": "Reduce data transfer with compression",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression"
        },
        "score": 25,
        "urgency": "low",
        "totalEstimatedSavingsBytes": 1358374.25,
        "checks": {
          "hasEffectiveTextCompression": false
        },
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Use modern image compression formats",
            "urgency": "high",
            "estimatedSavingsBytes": 1060526.25,
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size."
          },
          {
            "id": "uses-optimized-images",
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "estimatedSavingsBytes": 292359,
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings."
          },
          {
            "id": "uses-text-compression",
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "estimatedSavingsBytes": 5489,
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip."
          }
        ],
        "recommendations": [
          {
            "title": "Use modern image compression formats",
            "urgency": "high",
            "detail": "Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 1.01 MB."
          },
          {
            "title": "Improve image encoding quality/size",
            "urgency": "high",
            "detail": "Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 285.51 KB."
          },
          {
            "title": "Enable Brotli/gzip for text assets",
            "urgency": "low",
            "detail": "Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 5.36 KB."
          }
        ]
      },
      "optimizationOpportunities": {
        "wsgReference": {
          "title": "Use the most efficient solution for your service",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service"
        },
        "score": 100,
        "urgency": "high",
        "totalEstimatedSavingsBytes": 2789342.25,
        "totalEstimatedBlockingMs": 150,
        "opportunities": [
          {
            "id": "modern-image-formats",
            "title": "Serve images in next-gen formats",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP.",
            "estimatedSavingsBytes": 1060526.25,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 1,036 KiB",
            "urgency": "high",
            "sourceAuditId": "modern-image-formats"
          },
          {
            "id": "unused-javascript",
            "title": "Remove unused JavaScript",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code.",
            "estimatedSavingsBytes": 912711,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 891 KiB",
            "urgency": "high",
            "sourceAuditId": "unused-javascript"
          },
          {
            "id": "offscreen-images",
            "title": "Lazy-load offscreen images",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed.",
            "estimatedSavingsBytes": 350550,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 342 KiB",
            "urgency": "high",
            "sourceAuditId": "offscreen-images"
          },
          {
            "id": "uses-optimized-images",
            "title": "Compress oversized image assets",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss.",
            "estimatedSavingsBytes": 292359,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 286 KiB",
            "urgency": "high",
            "sourceAuditId": "uses-optimized-images"
          },
          {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped.",
            "estimatedSavingsBytes": 87056,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 85 KiB",
            "urgency": "medium",
            "sourceAuditId": "unused-css-rules"
          },
          {
            "id": "uses-responsive-images",
            "title": "Right-size images for viewport",
            "detail": "Avoid sending larger images than the rendered size needs.",
            "estimatedSavingsBytes": 80651,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 79 KiB",
            "urgency": "medium",
            "sourceAuditId": "uses-responsive-images"
          },
          {
            "id": "uses-text-compression",
            "title": "Enable text compression",
            "detail": "Serve text assets with Brotli or gzip to remove avoidable transfer bloat.",
            "estimatedSavingsBytes": 5489,
            "estimatedBlockingMs": 0,
            "displayValue": "Est savings of 5 KiB",
            "urgency": "low",
            "sourceAuditId": "uses-text-compression"
          },
          {
            "id": "render-blocking-resources",
            "title": "Eliminate render-blocking resources",
            "detail": "Inline critical assets and defer non-critical scripts/styles for faster rendering.",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 150,
            "displayValue": "Est savings of 150 ms",
            "urgency": "low",
            "sourceAuditId": "render-blocking-resources"
          }
        ],
        "recommendations": [
          {
            "title": "Serve images in next-gen formats",
            "urgency": "high",
            "detail": "Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 1.01 MB."
          },
          {
            "title": "Remove unused JavaScript",
            "urgency": "high",
            "detail": "Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 891.32 KB."
          },
          {
            "title": "Lazy-load offscreen images",
            "urgency": "high",
            "detail": "Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 342.33 KB."
          },
          {
            "title": "Compress oversized image assets",
            "urgency": "high",
            "detail": "Re-encode large images to reduce transfer weight without visible quality loss. Estimated byte savings: 285.51 KB."
          },
          {
            "title": "Remove unused CSS",
            "urgency": "medium",
            "detail": "Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 85.02 KB."
          },
          {
            "title": "Right-size images for viewport",
            "urgency": "medium",
            "detail": "Avoid sending larger images than the rendered size needs. Estimated byte savings: 78.76 KB."
          }
        ]
      },
      "dependencyMaintenance": {
        "wsgReference": {
          "title": "Use dependencies appropriately and ensure maintenance",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance"
        },
        "score": 8,
        "urgency": "medium",
        "vulnerableLibraryCount": 0,
        "vulnerableLibraries": [],
        "externalScriptsWithoutIntegrity": 4,
        "recommendations": [
          {
            "title": "Add integrity attributes for external dependencies",
            "urgency": "medium",
            "detail": "4 external script dependency URL(s) are missing SRI integrity attributes."
          }
        ]
      },
      "offlineSupport": {
        "wsgReference": {
          "title": "Optimize caching and support offline access",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access"
        },
        "score": 100,
        "urgency": "high",
        "checks": {
          "hasServiceWorker": false,
          "worksOffline": false,
          "hasInstallableManifest": false,
          "hasOfflineStartUrl": false,
          "longCacheTtlScore": 0.5,
          "cacheSavingsBytes": 285093.73383379873
        },
        "opportunities": [
          {
            "id": "service-worker",
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "id": "works-offline",
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "id": "installable-manifest",
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "id": "offline-start-url",
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "id": "uses-long-cache-ttl",
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 278.41 KB)."
          }
        ],
        "recommendations": [
          {
            "title": "Add service worker support",
            "urgency": "high",
            "detail": "Register a service worker to support resilient caching and offline behavior for key routes."
          },
          {
            "title": "Ensure critical routes work offline",
            "urgency": "high",
            "detail": "Provide an offline fallback strategy for key pages and shell assets."
          },
          {
            "title": "Improve web app manifest support",
            "urgency": "medium",
            "detail": "Complete manifest fields so clients can install and run an app-like experience."
          },
          {
            "title": "Support offline start URL behavior",
            "urgency": "medium",
            "detail": "Ensure start URL and shell routing can load in disconnected conditions."
          },
          {
            "title": "Strengthen static asset cache TTL",
            "urgency": "medium",
            "detail": "Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 278.41 KB)."
          }
        ]
      },
      "languageVersionGuidance": {
        "wsgReference": {
          "title": "Use the latest stable language version",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version"
        },
        "score": 0,
        "urgency": "low",
        "observedTechnologies": [],
        "outdatedTechnologies": [],
        "vulnerableLibraryCount": 0,
        "recommendations": [
          {
            "title": "No obvious outdated runtime version disclosed",
            "urgency": "low",
            "detail": "No clearly outdated runtime version signals were exposed in sampled HTTP headers. Verify language/runtime versions in source and CI since backend versions are not always externally visible."
          }
        ]
      },
      "deadCode": {
        "score": 11,
        "urgency": "high",
        "transferBytes": 5339132,
        "css": {
          "unusedBytes": 87056,
          "ratio": 0.016305272092916975,
          "auditId": "unused-css-rules"
        },
        "javascript": {
          "unusedBytes": 912711,
          "duplicatedBytes": 0,
          "ratio": 0.1709474498851124,
          "auditIds": [
            "unused-javascript",
            "duplicated-javascript"
          ]
        },
        "html": {
          "estimatedPenalty": 0.125,
          "totalBodyElements": 0,
          "maxDepth": 0,
          "maxChildElements": 0,
          "note": "HTML dead code cannot be measured directly from Lighthouse. This score estimates unnecessary markup from DOM size and complexity signals."
        },
        "recommendations": [
          {
            "area": "css",
            "title": "Remove unused CSS selectors and component styles",
            "urgency": "high",
            "estimatedSavingsBytes": 87056,
            "strategy": "Trim styles that never match rendered markup and split component CSS so only used styles are shipped.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          },
          {
            "area": "javascript",
            "title": "Remove unused JavaScript and feature bundles",
            "urgency": "high",
            "estimatedSavingsBytes": 912711,
            "strategy": "Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "4",
              "title": "Remove unnecessary code",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
              "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "4",
          "title": "Remove unnecessary code",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code",
          "subheading": "Clear out dead or unused code as it builds up in a project to reduce the amount of wasted data being transferred."
        }
      },
      "nonCriticalResources": {
        "score": 9,
        "urgency": "high",
        "transferBytes": 5339132,
        "estimatedDeferrableBytes": 1350317,
        "renderBlockingMs": 150,
        "breakdown": {
          "offscreenImageSavings": 350550,
          "unusedJavascriptSavings": 912711,
          "unusedCssSavings": 87056
        },
        "candidates": [
          {
            "title": "Lazy-load offscreen images",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 350550,
            "strategy": "Load below-the-fold images only when they approach the viewport.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Defer non-critical JavaScript",
            "area": "javascript",
            "urgency": "high",
            "estimatedSavingsBytes": 912711,
            "strategy": "Split bundles and load feature code on interaction or route transition.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Inline critical CSS and defer remainder",
            "area": "stylesheet",
            "urgency": "high",
            "estimatedSavingsBytes": 87056,
            "strategy": "Ship only above-the-fold CSS in initial render path and defer non-critical styles.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Eliminate render-blocking resources",
            "area": "render-path",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "estimatedBlockingMs": 150,
            "strategy": "Defer scripts/styles not required for first paint and preload only truly critical assets.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.youtube.com",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 702233,
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_ias.vflset/en_US/base.js",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy image from www.energy.gov",
            "area": "image",
            "urgency": "high",
            "estimatedSavingsBytes": 390606,
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2023-09/090623-ip-radium223_1.jpg?itok=g9sA9Yt_",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          },
          {
            "title": "Evaluate deferred loading for heavy script from www.energy.gov",
            "area": "script",
            "urgency": "high",
            "estimatedSavingsBytes": 348787,
            "url": "https://www.energy.gov/modules/custom/energy_search/js/search-uswds/build/static/js/bundle.js?tc8prb",
            "strategy": "Confirm this asset is required for first paint; defer or lazy-load if not critical.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "8",
              "title": "Defer the loading of non-critical resources",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
              "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "8",
          "title": "Defer the loading of non-critical resources",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources",
          "subheading": "Avoid render-blocking slowdowns by asynchronously loading, deferring, or prioritizing external resources as appropriate."
        }
      },
      "thirdPartyJs": {
        "wsgReference": {
          "title": "Give third parties the same priority as first parties during assessment",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment"
        },
        "score": 90,
        "urgency": "high",
        "providerCount": 10,
        "requestCount": 27,
        "transferBytes": 2883954,
        "notGreenCount": 3,
        "unknownCount": 0,
        "scripts": [
          {
            "hostname": "www.youtube.com",
            "resourceType": "script",
            "requestCount": 8,
            "transferBytes": 1619729,
            "sampleUrl": "https://www.youtube.com/s/embeds/c5dd6dc7/www-embed-player-pc-es6.vflset/www-embed-player-pc-es6.js",
            "greenCheck": {
              "hostname": "www.youtube.com",
              "checked": true,
              "status": "green",
              "green": true,
              "hostedBy": "Google Cloud",
              "hostedByWebsite": "https://cloud.google.com",
              "listedProvider": true,
              "partner": null,
              "modified": "2026-01-10T15:09:17",
              "supportingDocuments": [
                {
                  "id": 108,
                  "title": "Sustainability at Google",
                  "link": "https://sustainability.google"
                },
                {
                  "id": 1364,
                  "title": "Google 2024 Environmental Report",
                  "link": "https://www.gstatic.com/gumdrop/sustainability/google-2024-environmental-report.pdf"
                },
                {
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            "resourceType": "script",
            "mimeType": "text/javascript",
            "domain": "www.youtube.com"
          },
          {
            "url": "https://www.googletagmanager.com/gtag/js?id=UA-17192165-1&cx=c&gtm=4e63i0",
            "transferSize": 115795,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.googletagmanager.com"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/styles/banner_tall/public/2023-09/090623-ip-radium223_1.jpg?itok=emZhW4Vg",
            "transferSize": 108569,
            "resourceType": "image",
            "mimeType": "image/jpeg",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/js/js_zKKF6aMALZ8I4xNBLCovOiSmbp8brvk35JuqYftzvUo.js?scope=footer&delta=0&language=en&theme=energy_gov&include=eJxtjUEOwjAMBD9U4Qv_iUxipVYtJ7JNIL-nhwYuHHd3RlswUHCSwYN2HNzMN1KyOhMqygzODhXviQZppDDMB2v9w7RWhX7FInLTOE24Ir1DWI-11jYA3Sm-vBNa3gF73y4Wij07ym2pzkEvLueXkAWwcnwAqu9OzQ",
            "transferSize": 98287,
            "resourceType": "script",
            "mimeType": "application/javascript",
            "domain": "www.energy.gov"
          },
          {
            "url": "https://www.energy.gov/sites/default/files/css/css_O5fVRBFfj6fhEreA1DF4tUTO_NSTGRwryb9guQTJH-o.css?delta=1&language=en&theme=energy_gov&include=eJxNi1EKwzAMQy9kkiMVtxGpWZoE22nX24-Nhe1HSO-hrSli0tG5hCRcWiZUaL6X7W3--uS5nZHN4EZ4epH6mP_vpM7KWbnvNs2PhFH7WIvYjkQmjksSFi5Qj1LFyW5zHHFlA52Cy-Inw9HSKHgBn6ZEzg",
            "transferSize": 91955,
            "resourceType": "stylesheet",
            "mimeType": "text/css",
            "domain": "www.energy.gov"
          }
        ],
        "groupedByType": [
          {
            "resourceType": "script",
            "count": 14,
            "transferBytes": 3160192
          },
          {
            "resourceType": "image",
            "count": 5,
            "transferBytes": 1242600
          },
          {
            "resourceType": "stylesheet",
            "count": 2,
            "transferBytes": 149873
          }
        ],
        "groupedByOrigin": [
          {
            "domain": "www.energy.gov",
            "count": 8,
            "transferBytes": 1781629
          },
          {
            "domain": "www.youtube.com",
            "count": 5,
            "transferBytes": 1621108
          },
          {
            "domain": "www.googletagmanager.com",
            "count": 8,
            "transferBytes": 1149928
          }
        ],
        "onDemandCandidates": [
          {
            "title": "Lazy-load offscreen images and media galleries",
            "urgency": "high",
            "estimatedSavingsBytes": 350550,
            "strategy": "Load imagery only when it enters the viewport or when a user opens the relevant section.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Split JavaScript by route or interaction",
            "urgency": "high",
            "estimatedSavingsBytes": 912711,
            "strategy": "Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Defer non-critical UI modules until after first render",
            "urgency": "medium",
            "estimatedSavingsBytes": 0,
            "strategy": "Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later.",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy script asset from www.youtube.com",
            "urgency": "high",
            "estimatedSavingsBytes": 702233,
            "strategy": "Load this script only on pages or interactions that require it; prefer dynamic import and feature-level bundles.",
            "url": "https://www.youtube.com/s/player/1ebf2aa6/player_ias.vflset/en_US/base.js",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          },
          {
            "title": "Modularize heavy image asset from www.energy.gov",
            "urgency": "high",
            "estimatedSavingsBytes": 390606,
            "strategy": "Serve a smaller placeholder first and load this asset only when the user scrolls to or requests the component.",
            "url": "https://www.energy.gov/sites/default/files/styles/banner_wide/public/2023-09/090623-ip-radium223_1.jpg?itok=g9sA9Yt_",
            "wsg": {
              "categoryId": "3",
              "categoryName": "Web Development",
              "id": "3",
              "title": "Modularize bandwidth-heavy components",
              "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
              "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
            }
          }
        ],
        "wsg": {
          "categoryId": "3",
          "categoryName": "Web Development",
          "id": "3",
          "title": "Modularize bandwidth-heavy components",
          "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
          "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
        }
      },
      "findings": [
        {
          "auditId": "largest-contentful-paint",
          "title": "Largest Contentful Paint",
          "description": "Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)",
          "score": 0,
          "displayValue": "12.6 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Largest Contentful Paint\n\n- Lighthouse audit: largest-contentful-paint\n- Current value: 12.6 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nLargest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "speed-index",
          "title": "Speed Index",
          "description": "Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).",
          "score": 0.31,
          "displayValue": "7.1 s",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "1",
            "title": "Set goals based on performance and energy impact",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact",
            "subheading": "Account for the difference in energy intensity that different types of content may have on a project and set goals based on what you would like to achieve."
          },
          "issueTemplate": "## Improve Speed Index\n\n- Lighthouse audit: speed-index\n- Current value: 7.1 s\n- WSG guideline: 1 Set goals based on performance and energy impact\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact\n\n### Why this matters\nSpeed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-javascript",
          "title": "Reduce unused JavaScript",
          "description": "Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).",
          "score": 0,
          "displayValue": "Est savings of 891 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "16",
            "title": "Use dependencies appropriately and ensure maintenance",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance",
            "subheading": "Use libraries and frameworks only where necessary, when plain code or smaller packages are inappropriate for the use case, and they are kept up to date."
          },
          "issueTemplate": "## Improve Reduce unused JavaScript\n\n- Lighthouse audit: unused-javascript\n- Current value: Est savings of 891 KiB\n- WSG guideline: 16 Use dependencies appropriately and ensure maintenance\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance\n\n### Why this matters\nReduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. [Learn how to reduce unused JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unused-javascript/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "unused-css-rules",
          "title": "Reduce unused CSS",
          "description": "Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).",
          "score": 0,
          "displayValue": "Est savings of 85 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Reduce unused CSS\n\n- Lighthouse audit: unused-css-rules\n- Current value: Est savings of 85 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nReduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS](https://developer.chrome.com/docs/lighthouse/performance/unused-css-rules/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "modern-image-formats",
          "title": "Serve images in next-gen formats",
          "description": "Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).",
          "score": 0,
          "displayValue": "Est savings of 1,036 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Serve images in next-gen formats\n\n- Lighthouse audit: modern-image-formats\n- Current value: Est savings of 1,036 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nImage formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. [Learn more about modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-optimized-images",
          "title": "Efficiently encode images",
          "description": "Optimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).",
          "score": 0,
          "displayValue": "Est savings of 286 KiB",
          "impact": "high",
          "wsg": {
            "categoryId": "2",
            "categoryName": "User Experience Design",
            "id": "11",
            "title": "Optimize media to reduce resource use",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use",
            "subheading": "Ensure all media - including audio, video, animation, images, and other novel formats, when deemed necessary in the design, are optimized, correctly sized and formatted, use lazy loading where appropriate, with a usage policy in place."
          },
          "issueTemplate": "## Improve Efficiently encode images\n\n- Lighthouse audit: uses-optimized-images\n- Current value: Est savings of 286 KiB\n- WSG guideline: 11 Optimize media to reduce resource use\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use\n\n### Why this matters\nOptimized images load faster and consume less cellular data. [Learn how to efficiently encode images](https://developer.chrome.com/docs/lighthouse/performance/uses-optimized-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "render-blocking-resources",
          "title": "Eliminate render-blocking resources",
          "description": "Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).",
          "score": 0,
          "displayValue": "Est savings of 150 ms",
          "impact": "high",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "18",
            "title": "Use the most efficient solution for your service",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service",
            "subheading": "Identify the project requirements, use the most efficient approach, aim for static over dynamic where possible, and consider the impact of extensions and components."
          },
          "issueTemplate": "## Improve Eliminate render-blocking resources\n\n- Lighthouse audit: render-blocking-resources\n- Current value: Est savings of 150 ms\n- WSG guideline: 18 Use the most efficient solution for your service\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service\n\n### Why this matters\nResources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. [Learn how to eliminate render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "offscreen-images",
          "title": "Defer offscreen images",
          "description": "Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).",
          "score": 0.5,
          "displayValue": "Est savings of 342 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "3",
            "title": "Modularize bandwidth-heavy components",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components",
            "subheading": "Break down large components into smaller, self-contained pieces that can be requested only when required to save bandwidth."
          },
          "issueTemplate": "## Improve Defer offscreen images\n\n- Lighthouse audit: offscreen-images\n- Current value: Est savings of 342 KiB\n- WSG guideline: 3 Modularize bandwidth-heavy components\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components\n\n### Why this matters\nConsider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. [Learn how to defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "uses-text-compression",
          "title": "Enable text compression",
          "description": "Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).",
          "score": 0.5,
          "displayValue": "Est savings of 5 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Enable text compression\n\n- Lighthouse audit: uses-text-compression\n- Current value: Est savings of 5 KiB\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nText-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. [Learn more about text compression](https://developer.chrome.com/docs/lighthouse/performance/uses-text-compression/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "total-byte-weight",
          "title": "Avoid enormous network payloads",
          "description": "Large network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).",
          "score": 0.5,
          "displayValue": "Total size was 5,214 KiB",
          "impact": "medium",
          "wsg": {
            "categoryId": "5",
            "categoryName": "Business Strategy And Product Management",
            "id": "25",
            "title": "Define performance and environmental budgets",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets",
            "subheading": "Set budgets, taking people, planet, and performance into account alongside baselines, targets, evidence, and resources to help meet KPIs."
          },
          "issueTemplate": "## Improve Avoid enormous network payloads\n\n- Lighthouse audit: total-byte-weight\n- Current value: Total size was 5,214 KiB\n- WSG guideline: 25 Define performance and environmental budgets\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#define-performance-and-environmental-budgets\n\n### Why this matters\nLarge network payloads cost users real money and are highly correlated with long load times. [Learn how to reduce payload sizes](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        },
        {
          "auditId": "dom-size",
          "title": "Avoid an excessive DOM size",
          "description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).",
          "score": 0.5,
          "displayValue": "827 elements",
          "impact": "medium",
          "wsg": {
            "categoryId": "3",
            "categoryName": "Web Development",
            "id": "2",
            "title": "Remove unnecessary or redundant information",
            "url": "https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information",
            "subheading": "Remove redundant characters from code to reduce the amount of data being stored and transferred to devices."
          },
          "issueTemplate": "## Improve Avoid an excessive DOM size\n\n- Lighthouse audit: dom-size\n- Current value: 827 elements\n- WSG guideline: 2 Remove unnecessary or redundant information\n- WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information\n\n### Why this matters\nA large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn how to avoid an excessive DOM size](https://developer.chrome.com/docs/lighthouse/performance/dom-size/).\n\n### Definition of done\n- [ ] Metric improves in Lighthouse on key templates\n- [ ] Changes documented in release notes\n- [ ] Re-scan confirms improvement"
        }
      ]
    }
  ]
}