# Sustainability Scan Report: SCAN: Spain - Issue number: #1 - Generated at: 2026-03-30T00:54:54.410Z - URLs requested: 100 - URLs scanned: 100 - Distinct sites scanned: 1 - Scan errors: 0 - Average performance score: 55/100 - Total transfer: 217.34 MB - Estimated CO2: 87.3041 g - Average transfer per page: 2.17 MB - Average CO2 per page: 0.8730 g - Average redundancy score: 68/100 - Pages with high redundancy urgency: 100 - Average modularization score: 46/100 - Pages with high modularization urgency: 100 - Average dead-code score: 30/100 - Pages with high dead-code urgency: 100 - Average non-critical resources score: 35/100 - Pages with high non-critical resource urgency: 100 - Average form validation score: 70/100 - Pages with high form validation urgency: 100 - Average metadata score: 31/100 - Pages with high metadata urgency: 0 - Average layout adaptation score: 34/100 - Pages with high layout urgency: 0 - Average lightweight security score: 32/100 - Pages with high security urgency: 0 - Average dependency maintenance score: 3/100 - Pages with high dependency maintenance urgency: 0 - Average expected-files score: 30/100 - Pages with high expected-files urgency: 0 - Average compression score: 99/100 - Pages with high compression urgency: 99 - Average optimization score: 100/100 - Pages with high optimization urgency: 100 - Average offline support score: 100/100 - Pages with high offline support urgency: 100 - Average language version score: 0/100 - Pages with high language version urgency: 0 ## WSG Form Validation and Tooling - WSG reference: Validate form errors and account for tooling requirements (https://www.w3.org/TR/web-sustainability-guidelines/#validate-form-errors-and-account-for-tooling-requirements) - Unique form element signatures assessed: 1 - Total form element occurrences observed: 100 - Reused assessments (not re-scanned repeats): 99 ### Recurring Form Elements (Assessed Once, Reused Across Pages) - text (q): appears on 100 page(s), risk 70/100, urgency HIGH ## WSG Metadata for Machine Readability - WSG reference: Structure metadata for machine readability (https://www.w3.org/TR/web-sustainability-guidelines/#structure-metadata-for-machine-readability) - Assessed pages: 100 - Average metadata score: 31/100 - Pages with high urgency: 0 - Missing metadata across pages: - Missing html lang: 0 - Missing meta description: 7 - Missing canonical URL: 49 - Missing Open Graph core tags: 100 - Missing twitter:card: 100 - Invalid or missing JSON-LD: 0 ## WSG Multi-Device Layout Support - WSG reference: Ensure layouts work for different devices and requirements (https://www.w3.org/TR/web-sustainability-guidelines/#ensure-layouts-work-for-different-devices-and-requirements) - Assessed pages: 100 - Average layout adaptation score: 34/100 - High urgency pages: 0 - Pages with mobile overflow: 0 - Pages with tablet overflow: 0 - Total small tap targets on mobile: 4172 - Total small tap targets on tablet: 7350 - Total fixed-width offenders: 217 ## WSG Lightweight Security Review - WSG reference: Ensure that your code is secure (https://www.w3.org/TR/web-sustainability-guidelines/#ensure-that-your-code-is-secure) - Assessed pages: 100 - Average lightweight security score: 32/100 - High urgency pages: 0 - Pages missing Content-Security-Policy: 100 - HTTPS pages missing Strict-Transport-Security: 0 - Pages with vulnerable JS library findings: 0 - External scripts missing SRI (total): 125 ## WSG Dependency Maintenance Review - WSG reference: Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - Assessed pages: 100 - Average dependency maintenance score: 3/100 - High urgency pages: 0 - Pages with vulnerable dependencies: 0 - Total vulnerable dependency findings: 0 ## WSG Expected and Beneficial Files - WSG reference: Include expected and beneficial files (https://www.w3.org/TR/web-sustainability-guidelines/#include-expected-and-beneficial-files) - Assessed pages: 100 - Average expected-files score: 30/100 - High urgency pages: 0 - Missing files across pages: - robots.txt missing: 0 - sitemap.xml missing: 0 - .well-known/security.txt missing: 100 - manifest.webmanifest missing: 100 - favicon.ico missing: 100 ## WSG Reduce Data Transfer With Compression - WSG reference: Reduce data transfer with compression (https://www.w3.org/TR/web-sustainability-guidelines/#reduce-data-transfer-with-compression) - Assessed pages: 100 - Average compression score: 99/100 - High urgency pages: 99 - Pages missing effective text compression: 100 - Aggregate potential compression savings: 231.24 MB - Recurring compression opportunities: - Enable Brotli/gzip for text assets: appears on 100 page(s), est. 124.20 MB total savings, urgency HIGH - Minify CSS before transfer: appears on 100 page(s), est. 85.06 MB total savings, urgency HIGH - Use modern image compression formats: appears on 100 page(s), est. 15.08 MB total savings, urgency HIGH - Minify JavaScript before transfer: appears on 100 page(s), est. 6.08 MB total savings, urgency MEDIUM - Improve image encoding quality/size: appears on 100 page(s), est. 832.19 KB total savings, urgency LOW ## WSG Efficient Solution Optimization Opportunities - WSG reference: Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - Assessed pages: 100 - Average optimization score: 100/100 - High urgency pages: 100 - Aggregate potential byte savings: 409.38 MB - Aggregate render-blocking reduction potential: 911514 ms - Recurring optimization opportunities: - Enable text compression: appears on 100 page(s), est. 124.20 MB total savings - Remove unused CSS: appears on 100 page(s), est. 114.13 MB total savings - Minify CSS: appears on 100 page(s), est. 85.06 MB total savings - Remove unused JavaScript: appears on 100 page(s), est. 51.15 MB total savings - Serve images in next-gen formats: appears on 100 page(s), est. 15.08 MB total savings - Lazy-load offscreen images: appears on 100 page(s), est. 10.10 MB total savings - Minify JavaScript: appears on 100 page(s), est. 6.08 MB total savings - Compress oversized image assets: appears on 100 page(s), est. 832.19 KB total savings - Eliminate render-blocking resources: appears on 100 page(s), est. 911514 ms unblock - Right-size images for viewport: appears on 94 page(s), est. 2.78 MB total savings ## WSG Offline Access and Caching Support - WSG reference: Optimize caching and support offline access (https://www.w3.org/TR/web-sustainability-guidelines/#optimize-caching-and-support-offline-access) - Assessed pages: 100 - Average offline support score: 100/100 - High urgency pages: 100 - Pages without service worker support: 100 - Pages without offline support: 100 - Pages with weak cache TTL signals: 100 - Recurring offline/caching opportunities: - Add service worker support: appears on 100 page(s), urgency HIGH - Ensure critical routes work offline: appears on 100 page(s), urgency HIGH - Improve web app manifest support: appears on 100 page(s), urgency MEDIUM - Strengthen static asset cache TTL: appears on 100 page(s), urgency MEDIUM - Support offline start URL behavior: appears on 100 page(s), urgency MEDIUM ## WSG Latest Stable Language Version - WSG reference: Use the latest stable language version (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-latest-stable-language-version) - Assessed pages: 100 - Average language-version score: 0/100 - High urgency pages: 0 - Pages exposing runtime/language version signals: 0 - Pages with outdated runtime/language signals: 0 ## WSG Third-Party JavaScript Assessment - WSG reference: Give third parties the same priority as first parties during assessment (https://www.w3.org/TR/web-sustainability-guidelines/#give-third-parties-the-same-priority-as-first-parties-during-assessment) - Average third-party JS risk score: 33/100 - Pages with high urgency: 1 - Distinct third-party script providers: 4 ### Top Third-Party Script Providers - www.googletagmanager.com: GREEN (Google Cloud); on 100 page(s), 189 request(s), 26.15 MB - egeovisor.redsara.es: NOT GREEN; on 1 page(s), 41 request(s), 3.16 MB - visitas-web.redsara.es: NOT GREEN; on 1 page(s), 2 request(s), 43.73 KB - www.google.com: GREEN (Google Cloud); on 1 page(s), 1 request(s), 1012.00 B ## Cross-Page Hosting Risk (Non-Green Providers) - Focus: recurring external CSS/JS providers with non-green or unknown hosting status. - Non-green providers were found, but none recur across multiple pages in this scan. ## Green Hosting Checks - Source: https://www.thegreenwebfoundation.org/tools/green-web-dataset/ - Submitted URL hosts checked: 100 - Submitted URL hosts on green energy: 0 - Submitted URL hosts not confirmed green: 100 - Submitted URL hosts unknown: 0 - External CSS/JS origins checked: 5 - External CSS/JS origins on green energy: 3 - External CSS/JS origins not confirmed green: 2 - External CSS/JS origins unknown: 0 ## WSG SC 3.1 Budget Guidance - WSG reference: Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - Sustainable Web Design benchmark: https://sustainablewebdesign.org/digital-carbon-ratings/ - Current transfer rating: E - Current CO2 rating: F - Recommended budget target: rating B - Budget max transfer/page: 975.85 KB - Budget max CO2/page: 0.1450 g - Transfer reduction needed: 1.22 MB (56.2%) - CO2 reduction needed: 0.7280 g (83.4%) - Stretch budget (rating A): 531.15 KB and 0.0790 g per page ## WSG SC 3.2 Redundancy Analysis - WSG reference: Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - Redundancy score: 0 (low redundancy) to 100 (high redundancy) - Urgency levels: low, medium, high ## WSG Remove Unnecessary Code Analysis - WSG reference: Remove unnecessary code (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-code) - Dead-code score: 0 (low unnecessary code) to 100 (high unnecessary code) - Includes unused CSS/JS, duplicated JS, and HTML complexity heuristics ## WSG Defer Non-Critical Resources Analysis - WSG reference: Defer the loading of non-critical resources (https://www.w3.org/TR/web-sustainability-guidelines/#defer-the-loading-of-non-critical-resources) - Non-critical score: 0 (few defer opportunities) to 100 (many deferrable resources) - Uses offscreen image savings, unused CSS/JS, render-blocking delay, and heavy likely-non-critical assets ## WSG Modularization Analysis - WSG reference: Modularize bandwidth-heavy components (https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components) - Modularization score: 0 (few obvious on-demand opportunities) to 100 (many heavy initial-load components) - This analysis looks for heavy scripts, images, styles, fonts, and media that should be split or loaded on demand. ## Cross-Page Patterns - This same heavy image pattern appears on 99 pages. Fix it once in the shared template, CMS block, or design system component to reduce load across the whole site. - These 2 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 administracion.gob.es recur across 100 pages. Review whether that dependency should be deferred, optimized, or loaded conditionally. ### Recurring Heavy Assets - script assets from www.googletagmanager.com/gtag appears on 100 pages (26.15 MB total) - stylesheet assets from administracion.gob.es/resources appears on 99 pages (115.28 MB total) - image assets from administracion.gob.es/resources appears on 99 pages (15.09 MB total) - script assets from administracion.gob.es/resources appears on 90 pages (22.18 MB total) - image assets from administracion.gob.es/dam appears on 4 pages (2.31 MB total) ### Recurring Modularization Targets - Modularize heavy stylesheet asset from administracion.gob.es affects 100 pages (est. 112.27 MB aggregate savings) - Split JavaScript by route or interaction affects 100 pages (est. 51.15 MB aggregate savings) - Lazy-load offscreen images and media galleries affects 100 pages (est. 10.10 MB aggregate savings) - Defer non-critical UI modules until after first render affects 100 pages - Modularize heavy image asset from administracion.gob.es affects 99 pages (est. 16.38 MB aggregate savings) ### Recurring Heavy Origins - administracion.gob.es is a recurring heavy source on 100 pages (157.26 MB total) - www.googletagmanager.com is a recurring heavy source on 100 pages (26.15 MB total) ## Site-Wide Guidance - This scan appears to target a single site. Shared recommendations below should typically be fixed once at platform/template level. ### https://administracion.gob.es - Sampled pages: 100 - Shared recommendations: - [LOW] Publish .well-known/security.txt - .well-known/security.txt is missing for all sampled pages on https://administracion.gob.es. - [HIGH] Apply Content-Security-Policy site-wide - CSP is absent across all sampled pages on https://administracion.gob.es. - [HIGH] Introduce service worker support - No sampled pages on https://administracion.gob.es indicate service worker support for offline resilience. - [HIGH] Support offline fallback behavior - Offline page behavior was not detected across sampled pages on https://administracion.gob.es. - [MEDIUM] Fix recurring optimization bloat at shared layer - Enable text compression recurs across 100 pages on https://administracion.gob.es (est. 124.20 MB aggregate savings). - [HIGH] Prioritize recurring compression fixes - Enable Brotli/gzip for text assets recurs across 100 pages on https://administracion.gob.es (est. 124.20 MB aggregate savings). - [HIGH] Prioritize recurring offline/caching improvements - Add service worker support is needed across 100 pages on https://administracion.gob.es. - Recurring offline/caching opportunities: - Add service worker support: 100 page(s), urgency HIGH - Ensure critical routes work offline: 100 page(s), urgency HIGH - Improve web app manifest support: 100 page(s), urgency MEDIUM - Strengthen static asset cache TTL: 100 page(s), urgency MEDIUM - Support offline start URL behavior: 100 page(s), urgency MEDIUM - Recurring compression opportunities: - Enable Brotli/gzip for text assets: 100 page(s), est. 124.20 MB total savings, urgency HIGH - Minify CSS before transfer: 100 page(s), est. 85.06 MB total savings, urgency HIGH - Use modern image compression formats: 100 page(s), est. 15.08 MB total savings, urgency HIGH - Minify JavaScript before transfer: 100 page(s), est. 6.08 MB total savings, urgency MEDIUM - Improve image encoding quality/size: 100 page(s), est. 832.19 KB total savings, urgency LOW - Recurring optimization opportunities: - Enable text compression: 100 page(s), est. 124.20 MB total savings - Remove unused CSS: 100 page(s), est. 114.13 MB total savings - Minify CSS: 100 page(s), est. 85.06 MB total savings - Remove unused JavaScript: 100 page(s), est. 51.15 MB total savings - Serve images in next-gen formats: 100 page(s), est. 15.08 MB total savings - Lazy-load offscreen images: 100 page(s), est. 10.10 MB total savings ## Page-Specific Guidance - Use this section for page-level exceptions after site-wide/platform fixes are planned. ### https://administracion.gob.es - https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/asistencia-sanitaria/centros-atencion-sociosanitaria - Combined urgency: HIGH - Compression score: 100/100, optimization score: 100/100, offline score: 100/100, dependency score: 4/100, language score: 0/100, security score: 33/100, expected-files score: 30/100 - [HIGH] Enable Brotli/gzip for text assets - [HIGH] Minify CSS before transfer - [MEDIUM] Use modern image compression formats - https://administracion.gob.es/pag_Home/ca/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/asistencia-sanitaria/centros-atencion-sociosanitaria - Combined urgency: HIGH - Compression score: 100/100, optimization score: 100/100, offline score: 100/100, dependency score: 4/100, language score: 0/100, security score: 33/100, expected-files score: 30/100 - [HIGH] Enable Brotli/gzip for text assets - [HIGH] Minify CSS before transfer - [MEDIUM] Use modern image compression formats - https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/asistencia-sanitaria/centros-atencion-sociosanitaria - Combined urgency: HIGH - Compression score: 100/100, optimization score: 100/100, offline score: 100/100, dependency score: 4/100, language score: 0/100, security score: 33/100, expected-files score: 30/100 - [HIGH] Enable Brotli/gzip for text assets - [HIGH] Minify CSS before transfer - [MEDIUM] Use modern image compression formats - https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/consumidores/conexion-servicios/telecomunicaciones - Combined urgency: HIGH - Compression score: 100/100, optimization score: 100/100, offline score: 100/100, dependency score: 4/100, language score: 0/100, security score: 33/100, expected-files score: 30/100 - [HIGH] Enable Brotli/gzip for text assets - [HIGH] Minify CSS before transfer - [MEDIUM] Use modern image compression formats - https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/viajes/pasajeros/combinados-vinculados - Combined urgency: HIGH - Compression score: 100/100, optimization score: 100/100, offline score: 100/100, dependency score: 4/100, language score: 0/100, security score: 33/100, expected-files score: 30/100 - [HIGH] Enable Brotli/gzip for text assets - [HIGH] Minify CSS before transfer - [MEDIUM] Use modern image compression formats - https://administracion.gob.es/pag_Home/ca/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/fiscalidad/doble-imposicion - Combined urgency: HIGH - Compression score: 100/100, optimization score: 100/100, offline score: 100/100, dependency score: 4/100, language score: 0/100, security score: 33/100, expected-files score: 30/100 - [HIGH] Enable Brotli/gzip for text assets - [HIGH] Minify CSS before transfer - [MEDIUM] Use modern image compression formats ## Priority Improvements ### https://administracion.gob.es/ - Performance: 55/100 - Transfer: 3.30 MB - CO2 estimate: 1.3264 g - Page host green energy status: NOT GREEN - Redundancy score: 61/100 - Redundancy urgency: HIGH - Modularization score: 42/100 - Modularization urgency: HIGH - Dead-code score: 20/100 - Dead-code urgency: HIGH - Non-critical resources score: 27/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 38/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 91/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 17/100 - Third-party JS urgency: LOW - Estimated redundant transfer: 1.54 MB (46.5% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.13 MB savings) - [HIGH] Reduce unused javascript (est. 411.67 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.39 MB savings) - [MEDIUM] Reduce DOM complexity and redundant markup - Heavy initial-load requests: 9 (2.45 MB total) - On-demand modularization candidates: - [HIGH] Lazy-load offscreen images and media galleries (est. 185.18 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 411.67 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 1 request(s), 142.31 KB - Third-party JS recommendations: - [LOW] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.13 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 411.67 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 185.18 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 411.67 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.13 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 10075 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 72 small targets on mobile and 120 on tablet. - [MEDIUM] Refactor fixed-width components - 4 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.39 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [HIGH] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 688.02 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 29.76 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.39 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.13 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 688.02 KB. - [HIGH] Right-size images for viewport - Avoid sending larger images than the rendered size needs. Estimated byte savings: 476.77 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 411.67 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 3.14 MB). - [HIGH] Largest Contentful Paint - Current value: 17.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 13.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 412 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,162 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Serve images in next-gen formats - Current value: Est savings of 688 KiB - WSG: 11 Optimize media to reduce resource use (https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 10,080 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) ### https://administracion.gob.es/pag_Home - Performance: 55/100 - Transfer: 3.30 MB - CO2 estimate: 1.3260 g - Page host green energy status: NOT GREEN - Redundancy score: 61/100 - Redundancy urgency: HIGH - Modularization score: 43/100 - Modularization urgency: HIGH - Dead-code score: 20/100 - Dead-code urgency: HIGH - Non-critical resources score: 28/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 38/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 91/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 17/100 - Third-party JS urgency: LOW - Estimated redundant transfer: 1.54 MB (46.6% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.13 MB savings) - [HIGH] Reduce unused javascript (est. 412.95 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.39 MB savings) - [MEDIUM] Reduce DOM complexity and redundant markup - Heavy initial-load requests: 9 (2.45 MB total) - On-demand modularization candidates: - [HIGH] Lazy-load offscreen images and media galleries (est. 228.80 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 412.95 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 1 request(s), 142.06 KB - Third-party JS recommendations: - [LOW] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.13 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 412.95 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 228.80 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 412.95 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.13 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9815 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 72 small targets on mobile and 120 on tablet. - [MEDIUM] Refactor fixed-width components - 4 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.39 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [HIGH] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 688.02 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 29.76 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.39 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.13 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 688.02 KB. - [HIGH] Right-size images for viewport - Avoid sending larger images than the rendered size needs. Estimated byte savings: 476.77 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 412.95 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 3.14 MB). - [HIGH] Largest Contentful Paint - Current value: 14.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 413 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,162 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Serve images in next-gen formats - Current value: Est savings of 688 KiB - WSG: 11 Optimize media to reduce resource use (https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,820 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) ### https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/asistencia-sanitaria/centros-atencion-sociosanitaria - Performance: 56/100 - Transfer: 1.87 MB - CO2 estimate: 0.7526 g - Page host green energy status: NOT GREEN - Redundancy score: 81/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 36/100 - Dead-code urgency: HIGH - Non-critical resources score: 37/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 38/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (87.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 518.55 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.06 MB savings) - [MEDIUM] Reduce DOM complexity and redundant markup - Heavy initial-load requests: 5 (1.59 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 116.90 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 518.55 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.23 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 518.55 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 116.90 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 518.55 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 7727 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 55 small targets on mobile and 85 on tablet. - [MEDIUM] Refactor fixed-width components - 4 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.06 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.06 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 518.55 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 7727 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.57 MB). - [HIGH] Largest Contentful Paint - Current value: 10.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 9.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 519 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,167 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 7,730 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,082 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/asistencia-sanitaria/estancia-TSE - Performance: 55/100 - Transfer: 1.84 MB - CO2 estimate: 0.7408 g - Page host green energy status: NOT GREEN - Redundancy score: 72/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 34/100 - Dead-code urgency: HIGH - Non-critical resources score: 38/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (90.1% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.47 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.06 MB savings) - Heavy initial-load requests: 5 (1.59 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 100.47 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.47 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.69 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.47 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 100.47 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.47 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 7973 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 38 small targets on mobile and 69 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.06 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.06 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.47 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 7973 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.55 MB). - [HIGH] Largest Contentful Paint - Current value: 10.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 13.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 7,970 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,082 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/asistencia-sanitaria/numeros-urgencia - Performance: 55/100 - Transfer: 1.88 MB - CO2 estimate: 0.7542 g - Page host green energy status: NOT GREEN - Redundancy score: 71/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 34/100 - Dead-code urgency: HIGH - Non-critical resources score: 38/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (88.5% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.46 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.06 MB savings) - Heavy initial-load requests: 5 (1.59 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 126.06 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.46 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.22 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.46 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 126.06 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.46 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 7742 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 47 small targets on mobile and 81 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.06 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.06 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.46 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 7742 ms. - [MEDIUM] Lazy-load offscreen images - Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 126.06 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.58 MB). - [HIGH] Largest Contentful Paint - Current value: 11.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 7,740 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,082 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/ca/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/asistencia-sanitaria/centros-atencion-sociosanitaria - Performance: 55/100 - Transfer: 1.87 MB - CO2 estimate: 0.7525 g - Page host green energy status: NOT GREEN - Redundancy score: 81/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 36/100 - Dead-code urgency: HIGH - Non-critical resources score: 37/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 38/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (87.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 518.06 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.06 MB savings) - [MEDIUM] Reduce DOM complexity and redundant markup - Heavy initial-load requests: 5 (1.59 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 116.90 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 518.06 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.23 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 518.06 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 116.90 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 518.06 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 7778 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 55 small targets on mobile and 85 on tablet. - [MEDIUM] Refactor fixed-width components - 4 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.06 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.06 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 518.06 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 7778 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.57 MB). - [HIGH] Largest Contentful Paint - Current value: 11.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 518 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,167 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 7,780 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,082 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/ca/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/asistencia-sanitaria/estancia-TSE - Performance: 56/100 - Transfer: 1.84 MB - CO2 estimate: 0.7406 g - Page host green energy status: NOT GREEN - Redundancy score: 72/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 34/100 - Dead-code urgency: HIGH - Non-critical resources score: 38/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (90.2% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.42 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.06 MB savings) - Heavy initial-load requests: 5 (1.59 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 100.47 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.42 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.22 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.42 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 100.47 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.42 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8062 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 38 small targets on mobile and 69 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.06 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.06 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.42 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8062 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.55 MB). - [HIGH] Largest Contentful Paint - Current value: 10.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,060 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,082 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/ca/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/asistencia-sanitaria/numeros-urgencia - Performance: 55/100 - Transfer: 2.12 MB - CO2 estimate: 0.8517 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.4% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.46 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.23 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 126.06 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.46 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.23 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.46 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 126.06 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.46 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8919 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 47 small targets on mobile and 81 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.23 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.23 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.46 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8919 ms. - [MEDIUM] Lazy-load offscreen images - Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 126.06 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.82 MB). - [HIGH] Largest Contentful Paint - Current value: 12.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,920 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,263 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/asistencia-sanitaria/centros-atencion-sociosanitaria - Performance: 55/100 - Transfer: 1.87 MB - CO2 estimate: 0.7523 g - Page host green energy status: NOT GREEN - Redundancy score: 81/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 36/100 - Dead-code urgency: HIGH - Non-critical resources score: 37/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 36/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (87.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 518.06 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.06 MB savings) - [MEDIUM] Reduce DOM complexity and redundant markup - Heavy initial-load requests: 5 (1.59 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 116.90 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 518.06 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.23 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 518.06 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 116.90 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 518.06 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 7757 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 58 small targets on mobile and 83 on tablet. - [MEDIUM] Refactor fixed-width components - 3 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.06 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.06 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 518.06 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 7757 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.57 MB). - [HIGH] Largest Contentful Paint - Current value: 11.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 15.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 518 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,167 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 7,760 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,082 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/asistencia-sanitaria/estancia-TSE - Performance: 56/100 - Transfer: 1.84 MB - CO2 estimate: 0.7406 g - Page host green energy status: NOT GREEN - Redundancy score: 72/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 34/100 - Dead-code urgency: HIGH - Non-critical resources score: 38/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (90.2% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.56 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.06 MB savings) - Heavy initial-load requests: 5 (1.59 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 100.47 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.56 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.42 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.56 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 100.47 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.56 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8063 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 40 small targets on mobile and 66 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.06 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.06 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.56 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8063 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.55 MB). - [HIGH] Largest Contentful Paint - Current value: 10.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 9.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 535 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,060 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,082 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/asistencia-sanitaria/numeros-urgencia - Performance: 55/100 - Transfer: 2.12 MB - CO2 estimate: 0.8515 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.4% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.46 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.23 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 126.06 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.46 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.23 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.46 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 126.06 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.46 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9193 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 50 small targets on mobile and 78 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.23 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.23 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.46 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9193 ms. - [MEDIUM] Lazy-load offscreen images - Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 126.06 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.82 MB). - [HIGH] Largest Contentful Paint - Current value: 12.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,190 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,263 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/consumidores/conexion-servicios/telecomunicaciones - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8389 g - Page host green energy status: NOT GREEN - Redundancy score: 79/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 33/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 38/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.5% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 532.10 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.23 MB savings) - [MEDIUM] Reduce DOM complexity and redundant markup - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 102.47 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 532.10 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.23 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 532.10 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 102.47 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 532.10 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8958 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 76 small targets on mobile and 105 on tablet. - [MEDIUM] Refactor fixed-width components - 4 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.23 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.23 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 532.10 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8958 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 12.2 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 532 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,960 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,263 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/vehiculos/permiso-conduccion/validez-canje-reconocimiento - Performance: 55/100 - Transfer: 1.82 MB - CO2 estimate: 0.7331 g - Page host green energy status: NOT GREEN - Redundancy score: 72/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 34/100 - Dead-code urgency: HIGH - Non-critical resources score: 38/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (90.4% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 519.41 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.06 MB savings) - Heavy initial-load requests: 5 (1.59 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 519.41 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.23 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 519.41 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 519.41 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8056 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 26 small targets on mobile and 58 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.06 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.06 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 519.41 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8056 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.53 MB). - [HIGH] Largest Contentful Paint - Current value: 10.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.2 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 519 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,060 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,082 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/empresas/empleados/seguridad-social/alta-empresario - Performance: 56/100 - Transfer: 2.07 MB - CO2 estimate: 0.8303 g - Page host green energy status: NOT GREEN - Redundancy score: 69/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 31/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 40/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (80.5% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.52 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.23 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.52 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.23 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.52 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.52 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9299 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 42 small targets on mobile and 67 on tablet. - [MEDIUM] Refactor fixed-width components - 5 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.23 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.23 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.52 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9299 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.77 MB). - [HIGH] Largest Contentful Paint - Current value: 11.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 535 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,300 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,263 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/vehiculos/seguro-obligatorio/accidente-que-hacer - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8386 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.6% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 532.69 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 532.69 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.23 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 532.69 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 532.69 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9276 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 28 small targets on mobile and 61 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 532.69 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9276 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 11.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 533 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,280 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/consumidores/conexion-servicios/telecomunicaciones - Performance: 55/100 - Transfer: 2.11 MB - CO2 estimate: 0.8474 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 44/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.89 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 102.47 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.89 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.24 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.89 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 102.47 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.89 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9247 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 75 small targets on mobile and 108 on tablet. - [MEDIUM] Refactor fixed-width components - 7 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.89 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9247 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.81 MB). - [HIGH] Largest Contentful Paint - Current value: 12.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 13.2 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,250 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/viajes/pasajeros/combinados-vinculados - Performance: 55/100 - Transfer: 2.10 MB - CO2 estimate: 0.8431 g - Page host green energy status: NOT GREEN - Redundancy score: 69/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 40/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.2% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.42 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 94.36 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.42 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.42 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 94.36 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.42 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9299 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 45 small targets on mobile and 73 on tablet. - [MEDIUM] Refactor fixed-width components - 5 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.42 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9299 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 12.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 14.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,300 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/vehiculos/compraventa - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8396 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 34/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (78.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 518.54 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 518.54 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 518.54 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 518.54 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9251 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 30 small targets on mobile and 60 on tablet. - [MEDIUM] Refactor fixed-width components - 2 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 518.54 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9251 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 11.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 519 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,169 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,250 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/asistencia-sanitaria/estancia-TSE - Performance: 55/100 - Transfer: 2.10 MB - CO2 estimate: 0.8431 g - Page host green energy status: NOT GREEN - Redundancy score: 69/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.2% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.59 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 100.47 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.59 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.59 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 100.47 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.59 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9331 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 38 small targets on mobile and 69 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.59 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9331 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.81 MB). - [HIGH] Largest Contentful Paint - Current value: 12.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,330 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,277 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/viajes/transporte-animales - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8411 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.4% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.46 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 91.14 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.46 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.24 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.46 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 91.14 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.46 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9230 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 36 small targets on mobile and 69 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.46 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9230 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 11.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,230 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/residencia/estancia - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8376 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 34/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.67 MB (79.9% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.52 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 73.65 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.52 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.52 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 73.65 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.52 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9053 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 25 small targets on mobile and 52 on tablet. - [MEDIUM] Refactor fixed-width components - 2 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.52 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9053 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 11.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 14.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 535 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,050 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/ca/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/fiscalidad/doble-imposicion - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8383 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 38/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.65 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.65 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.45 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.65 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.65 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9232 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 32 small targets on mobile and 64 on tablet. - [MEDIUM] Refactor fixed-width components - 4 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.65 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9232 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 11.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 535 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,230 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/empresas/inicio-gestion-cierre/derechos/denominaciones-origen - Performance: 55/100 - Transfer: 2.19 MB - CO2 estimate: 0.8787 g - Page host green energy status: NOT GREEN - Redundancy score: 64/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 29/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 38/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (75.9% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 531.72 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [HIGH] Lazy-load offscreen images and media galleries (est. 168.17 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 531.72 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.24 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 531.72 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 168.17 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 531.72 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9257 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 52 small targets on mobile and 85 on tablet. - [MEDIUM] Refactor fixed-width components - 4 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 158.13 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 531.72 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9257 ms. - [MEDIUM] Lazy-load offscreen images - Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 168.17 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.89 MB). - [HIGH] Largest Contentful Paint - Current value: 12.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 15.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 532 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,167 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,260 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,284 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/consumidores/conexion-servicios/gas - Performance: 56/100 - Transfer: 2.11 MB - CO2 estimate: 0.8479 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.46 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 102.52 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.46 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.46 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 102.52 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.46 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9242 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 51 small targets on mobile and 82 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.46 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9242 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.81 MB). - [HIGH] Largest Contentful Paint - Current value: 12.2 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,240 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/ca/Tu-espacio-europeo/derechos-obligaciones/empresas/impuestos/especiales/electricidad - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8381 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.99 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.99 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.99 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.99 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8933 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 33 small targets on mobile and 66 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.99 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8933 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 11.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,930 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/residencia/obtencion-residencia/inscribirte-residente - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8394 g - Page host green energy status: NOT GREEN - Redundancy score: 69/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.6% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 532.69 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 532.69 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 532.69 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 532.69 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9239 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 33 small targets on mobile and 62 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 532.69 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9239 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 11.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 533 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,240 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,284 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/viajes/documentos/pasaportes-perdidos - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8393 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 42/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (78.9% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 519.31 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 519.31 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 519.31 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 519.31 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9267 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 31 small targets on mobile and 60 on tablet. - [MEDIUM] Refactor fixed-width components - 6 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 519.31 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9267 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 11.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 519 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,270 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/ca/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/seguridad-social-pensiones/Pensiones-clases-pasivas/coordinacion - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8379 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.52 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.52 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.52 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.52 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8950 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 31 small targets on mobile and 63 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.52 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8950 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 11.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 14.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 535 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,950 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/viajes/pasajeros/tren-autobus - Performance: 55/100 - Transfer: 1.93 MB - CO2 estimate: 0.7754 g - Page host green energy status: NOT GREEN - Redundancy score: 71/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 32/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 45/100 - Metadata urgency: MEDIUM - Layout adaptation score: 26/100 - Layout adaptation urgency: LOW - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 17/100 - Third-party JS urgency: LOW - Estimated redundant transfer: 1.61 MB (83.2% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.15 MB savings) - [HIGH] Reduce unused javascript (est. 470.57 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 5 (1.70 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 73.65 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 470.57 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 1 request(s), 141.96 KB - Third-party JS recommendations: - [LOW] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.15 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 470.57 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 73.65 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 470.57 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.15 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9167 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Add meta description - Provide a concise description to improve machine interpretation and preview quality. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [MEDIUM] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 9 small targets on mobile and 41 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.15 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 470.57 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9167 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.78 MB). - [HIGH] Largest Contentful Paint - Current value: 11.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.2 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 471 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,174 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,170 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/empresas/inicio-gestion-cierre/fusion-venta/sector-farmaceutico - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8383 g - Page host green energy status: NOT GREEN - Redundancy score: 69/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 40/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.6% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 532.16 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 532.16 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 532.16 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 532.16 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9457 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 37 small targets on mobile and 75 on tablet. - [MEDIUM] Refactor fixed-width components - 5 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 532.16 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9457 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 12.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 532 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,460 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/empresas/inicio-gestion-cierre/registro-cambio-cierre/sector-farmaceutico - Performance: 56/100 - Transfer: 2.12 MB - CO2 estimate: 0.8500 g - Page host green energy status: NOT GREEN - Redundancy score: 75/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 32/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 38/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (77.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 519.89 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - [MEDIUM] Reduce DOM complexity and redundant markup - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 105.05 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 519.89 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 519.89 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 105.05 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 519.89 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8909 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 54 small targets on mobile and 89 on tablet. - [MEDIUM] Refactor fixed-width components - 4 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 519.89 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8909 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.82 MB). - [HIGH] Largest Contentful Paint - Current value: 11.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 520 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,167 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,910 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/empresas/contratacion-publica/participar-licitaciones/asistencia-informacion - Performance: 56/100 - Transfer: 1.83 MB - CO2 estimate: 0.7350 g - Page host green energy status: NOT GREEN - Redundancy score: 72/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 35/100 - Dead-code urgency: HIGH - Non-critical resources score: 38/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (90.9% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.46 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.04 MB savings) - Heavy initial-load requests: 5 (1.59 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 98.91 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.46 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.24 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.46 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 98.91 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.46 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 7701 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 44 small targets on mobile and 70 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.04 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.04 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.46 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 7701 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.54 MB). - [HIGH] Largest Contentful Paint - Current value: 9.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 9.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 7,700 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,065 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/empresas/productos/defectuosos-seguridad - Performance: 56/100 - Transfer: 2.13 MB - CO2 estimate: 0.8541 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.1% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.55 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 114.20 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.55 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.55 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 114.20 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.55 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9126 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 41 small targets on mobile and 72 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.55 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9126 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.83 MB). - [HIGH] Largest Contentful Paint - Current value: 11.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,130 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/index.html - Performance: 55/100 - Transfer: 3.10 MB - CO2 estimate: 1.2461 g - Page host green energy status: NOT GREEN - Redundancy score: 60/100 - Redundancy urgency: HIGH - Modularization score: 40/100 - Modularization urgency: HIGH - Dead-code score: 21/100 - Dead-code urgency: HIGH - Non-critical resources score: 29/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 38/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 92/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 17/100 - Third-party JS urgency: LOW - Estimated redundant transfer: 1.54 MB (49.5% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.13 MB savings) - [HIGH] Reduce unused javascript (est. 411.49 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - [MEDIUM] Reduce DOM complexity and redundant markup - Heavy initial-load requests: 7 (2.28 MB total) - On-demand modularization candidates: - [HIGH] Lazy-load offscreen images and media galleries (est. 241.58 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 411.49 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 1 request(s), 141.96 KB - Third-party JS recommendations: - [LOW] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.13 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 411.49 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 241.58 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 411.49 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.13 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8879 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 72 small targets on mobile and 120 on tablet. - [MEDIUM] Refactor fixed-width components - 4 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [HIGH] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 688.02 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 29.76 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.13 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 688.02 KB. - [HIGH] Right-size images for viewport - Avoid sending larger images than the rendered size needs. Estimated byte savings: 476.77 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 411.49 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 2.95 MB). - [HIGH] Largest Contentful Paint - Current value: 17.2 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 411 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,162 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Serve images in next-gen formats - Current value: Est savings of 688 KiB - WSG: 11 Optimize media to reduce resource use (https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use) - [HIGH] Defer offscreen images - Current value: Est savings of 242 KiB - WSG: 3 Modularize bandwidth-heavy components (https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/incorporacion - Performance: 56/100 - Transfer: 2.15 MB - CO2 estimate: 0.8637 g - Page host green energy status: NOT GREEN - Redundancy score: 65/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 29/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (77.3% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.50 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 118.23 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.50 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.50 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 118.23 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.50 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8925 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 51 small targets on mobile and 77 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.50 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8925 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.85 MB). - [HIGH] Largest Contentful Paint - Current value: 11.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 535 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,930 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/consumidores/compraventa/resolucion-conflictos - Performance: 55/100 - Transfer: 2.14 MB - CO2 estimate: 0.8606 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 34/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (77.6% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.46 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 127.76 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.46 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.46 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 127.76 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.46 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9159 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 46 small targets on mobile and 76 on tablet. - [MEDIUM] Refactor fixed-width components - 2 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.46 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9159 ms. - [MEDIUM] Lazy-load offscreen images - Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 127.76 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.85 MB). - [HIGH] Largest Contentful Paint - Current value: 12.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 14.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,160 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/empresas/inicio-gestion-cierre/derechos/patentes-marcas/servicios-oepm - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8400 g - Page host green energy status: NOT GREEN - Redundancy score: 78/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 33/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (78.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 519.07 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - [MEDIUM] Reduce DOM complexity and redundant markup - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 519.07 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 519.07 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 519.07 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9466 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 30 small targets on mobile and 70 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 519.07 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9466 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 12.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 14.2 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 519 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,169 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,470 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/reconocimiento-cualificaciones/asistencia - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8386 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.04 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 73.65 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.04 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.04 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 73.65 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.04 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9171 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 22 small targets on mobile and 54 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.04 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9171 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 11.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 533 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,170 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,284 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/familia/pareja/matrimonio - Performance: 55/100 - Transfer: 2.11 MB - CO2 estimate: 0.8484 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 36/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.46 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 100.13 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.46 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.46 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 100.13 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.46 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9177 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 47 small targets on mobile and 78 on tablet. - [MEDIUM] Refactor fixed-width components - 3 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.46 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9177 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.82 MB). - [HIGH] Largest Contentful Paint - Current value: 12.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,167 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,180 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,284 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/consumidores/conexion-servicios/residuos - Performance: 56/100 - Transfer: 2.13 MB - CO2 estimate: 0.8552 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.0% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.59 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 114.38 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.59 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.59 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 114.38 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.59 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9220 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 55 small targets on mobile and 83 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.59 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9220 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.83 MB). - [HIGH] Largest Contentful Paint - Current value: 12.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.2 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,220 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/empresas/productos/gestion-residuos - Performance: 55/100 - Transfer: 2.14 MB - CO2 estimate: 0.8611 g - Page host green energy status: NOT GREEN - Redundancy score: 77/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 32/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 34/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (76.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 518.94 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - [MEDIUM] Reduce DOM complexity and redundant markup - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 120.67 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 518.94 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 518.94 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 120.67 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 518.94 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9252 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 69 small targets on mobile and 99 on tablet. - [MEDIUM] Refactor fixed-width components - 2 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 518.94 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9252 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.84 MB). - [HIGH] Largest Contentful Paint - Current value: 12.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 15.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 519 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,166 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,250 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/residencia/elecciones/europeas - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8394 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 42/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (78.9% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 519.41 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 519.41 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 519.41 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 519.41 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9255 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 32 small targets on mobile and 64 on tablet. - [MEDIUM] Refactor fixed-width components - 6 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 519.41 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9255 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 11.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 519 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,169 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,260 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tramites/hechos-vitales.html - Performance: 55/100 - Transfer: 2.46 MB - CO2 estimate: 0.9890 g - Page host green energy status: NOT GREEN - Redundancy score: 61/100 - Redundancy urgency: HIGH - Modularization score: 40/100 - Modularization urgency: HIGH - Dead-code score: 25/100 - Dead-code urgency: HIGH - Non-critical resources score: 32/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 45/100 - Metadata urgency: MEDIUM - Layout adaptation score: 28/100 - Layout adaptation urgency: LOW - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 17/100 - Third-party JS urgency: LOW - Estimated redundant transfer: 1.61 MB (65.3% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.15 MB savings) - [HIGH] Reduce unused javascript (est. 470.42 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.80 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 116.30 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 470.42 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 1 request(s), 141.96 KB - Third-party JS recommendations: - [LOW] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.15 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 470.42 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 116.30 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 470.42 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.15 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9589 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Add meta description - Provide a concise description to improve machine interpretation and preview quality. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [MEDIUM] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 10 small targets on mobile and 42 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [HIGH] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 598.44 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.15 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 598.44 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 470.42 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9589 ms. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 2.22 MB). - [HIGH] Largest Contentful Paint - Current value: 13.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 470 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,175 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,590 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/fiscalidad/pensionistas-transfronterizos - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8383 g - Page host green energy status: NOT GREEN - Redundancy score: 69/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 40/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 532.70 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 532.70 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 532.70 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 532.70 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9289 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 36 small targets on mobile and 70 on tablet. - [MEDIUM] Refactor fixed-width components - 5 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 532.70 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9289 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 12.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 533 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,290 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/atencionCiudadana/encuentraTuOficina.html - Performance: 51/100 - Transfer: 7.37 MB - CO2 estimate: 2.9590 g - Page host green energy status: NOT GREEN - Redundancy score: 38/100 - Redundancy urgency: HIGH - Modularization score: 43/100 - Modularization urgency: HIGH - Dead-code score: 9/100 - Dead-code urgency: HIGH - Non-critical resources score: 21/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 45/100 - Metadata urgency: MEDIUM - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 42/100 - Compression urgency: MEDIUM - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 85/100 - Third-party JS urgency: HIGH - Estimated redundant transfer: 1.78 MB (24.2% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.15 MB savings) - [HIGH] Reduce unused javascript (est. 643.46 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.77 MB savings) - Heavy initial-load requests: 22 (5.77 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 94.62 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 643.46 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT egeovisor.redsara.es: NOT GREEN; 41 request(s), 3.16 MB - STYLESHEET egeovisor.redsara.es: NOT GREEN; 17 request(s), 446.32 KB - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 1 request(s), 142.07 KB - SCRIPT visitas-web.redsara.es: NOT GREEN; 2 request(s), 43.73 KB - STYLESHEET use.fontawesome.com: GREEN (Cloudflare); 1 request(s), 12.82 KB - SCRIPT www.google.com: GREEN (Google Cloud); 1 request(s), 1012.00 B - Third-party JS recommendations: - [HIGH] Maintain a third-party JavaScript inventory - Track 4 third-party script origin(s) and assign an owner plus business justification for each. - [HIGH] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - [HIGH] Prioritize greener alternatives for third-party providers - 2 third-party script origin(s) are not confirmed green in the Green Web Foundation dataset. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.15 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 643.46 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 94.62 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 643.46 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.15 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 11729 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Add meta description - Provide a concise description to improve machine interpretation and preview quality. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [MEDIUM] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 18 small targets on mobile and 51 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.77 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.14 KB. - [HIGH] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 397.73 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 63.38 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.77 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.15 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.14 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 643.46 KB. - [HIGH] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 397.73 KB. - [HIGH] Right-size images for viewport - Avoid sending larger images than the rendered size needs. Estimated byte savings: 354.46 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 6.78 MB). - [HIGH] Largest Contentful Paint - Current value: 15.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 22.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 643 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,182 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 11,730 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,814 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/ca/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/viajes/documentos/pasaportes-perdidos - Performance: 56/100 - Transfer: 2.08 MB - CO2 estimate: 0.8363 g - Page host green energy status: NOT GREEN - Redundancy score: 69/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 46/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (79.2% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 518.99 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 518.99 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 518.99 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 518.99 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9091 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 31 small targets on mobile and 62 on tablet. - [MEDIUM] Refactor fixed-width components - 8 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 518.99 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9091 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 11.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.2 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 519 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,090 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,277 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/reconocimiento-cualificaciones - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8382 g - Page host green energy status: NOT GREEN - Redundancy score: 69/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 34/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.65 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.65 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.65 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.65 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8990 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 40 small targets on mobile and 72 on tablet. - [MEDIUM] Refactor fixed-width components - 2 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.65 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8990 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 11.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 13.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,990 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/empresas/productos/normas-requisitos/productos-industriales - Performance: 56/100 - Transfer: 2.11 MB - CO2 estimate: 0.8493 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 34/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.6% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.46 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 104.49 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.46 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.46 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 104.49 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.46 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9197 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 68 small targets on mobile and 102 on tablet. - [MEDIUM] Refactor fixed-width components - 2 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.46 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9197 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.82 MB). - [HIGH] Largest Contentful Paint - Current value: 11.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,167 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,200 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/empresas/financiacion/nacional/info-general - Performance: 55/100 - Transfer: 2.10 MB - CO2 estimate: 0.8439 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 38/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.1% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.51 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 98.48 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.51 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.25 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.51 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 98.48 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.51 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9526 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 38 small targets on mobile and 69 on tablet. - [MEDIUM] Refactor fixed-width components - 4 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.51 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9526 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.81 MB). - [HIGH] Largest Contentful Paint - Current value: 12.2 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,530 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/condiciones-trabajo/prestaciones-desempleo - Performance: 56/100 - Transfer: 2.15 MB - CO2 estimate: 0.8645 g - Page host green energy status: NOT GREEN - Redundancy score: 67/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 29/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (77.2% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.68 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [HIGH] Lazy-load offscreen images and media galleries (est. 131.19 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.68 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.46 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.68 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 131.19 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.68 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9276 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 53 small targets on mobile and 85 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.68 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9276 ms. - [MEDIUM] Lazy-load offscreen images - Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 131.19 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.86 MB). - [HIGH] Largest Contentful Paint - Current value: 12.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,167 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,280 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/residencia/obtencion-residencia/info-general - Performance: 55/100 - Transfer: 2.11 MB - CO2 estimate: 0.8467 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 532.95 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 101.75 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 532.95 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.26 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 532.95 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 101.75 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 532.95 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9149 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 40 small targets on mobile and 66 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 532.95 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9149 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.81 MB). - [HIGH] Largest Contentful Paint - Current value: 12.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 13.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 533 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,150 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/empresas/inicio-gestion-cierre/derechos/patentes-marcas/diseno-industrial - Performance: 56/100 - Transfer: 2.11 MB - CO2 estimate: 0.8484 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.59 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 102.71 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.59 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.59 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 102.71 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.59 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9255 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 56 small targets on mobile and 94 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.59 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9255 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.82 MB). - [HIGH] Largest Contentful Paint - Current value: 12.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,260 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/empresas/impuestos/especiales/info-general - Performance: 55/100 - Transfer: 2.10 MB - CO2 estimate: 0.8450 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 40/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.0% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.05 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 96.31 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.05 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.05 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 96.31 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.05 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8921 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 56 small targets on mobile and 82 on tablet. - [MEDIUM] Refactor fixed-width components - 5 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.05 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8921 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.81 MB). - [HIGH] Largest Contentful Paint - Current value: 12.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 13.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 533 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,920 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/empresas/empleados/desplazados/laboral - Performance: 55/100 - Transfer: 2.11 MB - CO2 estimate: 0.8491 g - Page host green energy status: NOT GREEN - Redundancy score: 78/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 32/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 57/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.6% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.93 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - [MEDIUM] Reduce DOM complexity and redundant markup - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 101.64 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.93 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.93 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 101.64 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.93 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9207 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 63 small targets on mobile and 100 on tablet. - [HIGH] Refactor fixed-width components - 16 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.93 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9207 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.81 MB). - [HIGH] Largest Contentful Paint - Current value: 12.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 13.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,167 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,210 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/seguridad-social-pensiones/Pensiones-clases-pasivas/jubilacion-retiro - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8379 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.61 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.61 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.61 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.61 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8967 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 29 small targets on mobile and 61 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.61 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8967 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 11.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,970 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/empresas/servicios/actividades-transfronterizas/sector-farmaceutico - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8387 g - Page host green energy status: NOT GREEN - Redundancy score: 69/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.52 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.52 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.26 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.52 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.52 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9516 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 40 small targets on mobile and 74 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.52 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9516 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 12.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 535 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,520 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/buscar-empleo - Performance: 56/100 - Transfer: 2.15 MB - CO2 estimate: 0.8641 g - Page host green energy status: NOT GREEN - Redundancy score: 67/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 29/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 34/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (77.2% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.06 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [HIGH] Lazy-load offscreen images and media galleries (est. 131.19 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.06 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.06 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 131.19 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.06 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9199 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 61 small targets on mobile and 99 on tablet. - [MEDIUM] Refactor fixed-width components - 2 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.06 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9199 ms. - [MEDIUM] Lazy-load offscreen images - Defer below-the-fold imagery until it is likely to be viewed. Estimated byte savings: 131.19 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.85 MB). - [HIGH] Largest Contentful Paint - Current value: 12.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 533 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,167 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,200 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/empresas/impuestos/especiales/carbon - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8392 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 38/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.52 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.52 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.52 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.52 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8977 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 40 small targets on mobile and 72 on tablet. - [MEDIUM] Refactor fixed-width components - 4 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.52 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8977 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 11.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 13.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 535 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,980 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,284 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/residencia/fallecimiento-repatriacion - Performance: 55/100 - Transfer: 2.10 MB - CO2 estimate: 0.8444 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 34/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.1% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.51 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 99.56 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.51 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.51 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 99.56 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.51 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9274 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 35 small targets on mobile and 62 on tablet. - [MEDIUM] Refactor fixed-width components - 2 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.51 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9274 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.81 MB). - [HIGH] Largest Contentful Paint - Current value: 12.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,270 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/fiscalidad/trabajadores-transfronterizos - Performance: 55/100 - Transfer: 2.08 MB - CO2 estimate: 0.8362 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 42/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.9% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.48 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.48 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.48 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.48 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9271 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 48 small targets on mobile and 83 on tablet. - [MEDIUM] Refactor fixed-width components - 6 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.48 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9271 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 12.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,270 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,277 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/residencia/obtencion-residencia/info-general - Performance: 55/100 - Transfer: 2.11 MB - CO2 estimate: 0.8468 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.64 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 101.75 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.64 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.47 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.64 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 101.75 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.64 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9011 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 39 small targets on mobile and 68 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.64 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9011 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.81 MB). - [HIGH] Largest Contentful Paint - Current value: 12.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 13.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,010 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/ca/Tu-espacio-europeo/derechos-obligaciones/empresas/inicio-gestion-cierre/derechos/patentes-marcas/observancia - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8394 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (78.9% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 519.41 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 519.41 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 519.41 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 519.41 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9338 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 29 small targets on mobile and 61 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 519.41 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9338 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 12.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 14.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 519 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,169 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,340 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/empresas/contratacion-publica/comunicar-irregularidad - Performance: 56/100 - Transfer: 2.13 MB - CO2 estimate: 0.8564 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (77.9% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 532.71 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 119.38 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 532.71 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 532.71 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 119.38 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 532.71 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9221 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 42 small targets on mobile and 69 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 532.71 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9221 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.84 MB). - [HIGH] Largest Contentful Paint - Current value: 12.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 533 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,220 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/condiciones-trabajo/finalizacion-contrato - Performance: 55/100 - Transfer: 2.10 MB - CO2 estimate: 0.8432 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.2% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.93 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 94.54 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.93 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.93 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 94.54 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.93 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9260 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 34 small targets on mobile and 63 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.93 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9260 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.81 MB). - [HIGH] Largest Contentful Paint - Current value: 12.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 14.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,260 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/empresas/servicios/permisos - Performance: 56/100 - Transfer: 2.13 MB - CO2 estimate: 0.8541 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 36/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.1% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.41 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 112.48 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.41 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.41 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 112.48 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.41 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9107 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 45 small targets on mobile and 77 on tablet. - [MEDIUM] Refactor fixed-width components - 3 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.41 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9107 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.83 MB). - [HIGH] Largest Contentful Paint - Current value: 12.2 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 533 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,110 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/viajes/documentos/pasaportes-caducados - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8403 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 40/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (78.9% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 520.16 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 520.16 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 520.16 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 520.16 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9491 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 33 small targets on mobile and 64 on tablet. - [MEDIUM] Refactor fixed-width components - 5 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 520.16 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9491 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 12.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 520 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,169 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,490 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,284 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/residencia/obtencion-nacionalidad - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8388 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 34/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.52 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.52 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.52 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.52 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9276 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 39 small targets on mobile and 66 on tablet. - [MEDIUM] Refactor fixed-width components - 2 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.52 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9276 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 11.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 535 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,280 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/consumidores/compraventa/inmobiliario - Performance: 55/100 - Transfer: 2.10 MB - CO2 estimate: 0.8420 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 34/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.3% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.59 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 92.30 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.59 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.59 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 92.30 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.59 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9299 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 34 small targets on mobile and 67 on tablet. - [MEDIUM] Refactor fixed-width components - 2 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.59 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9299 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 12.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 15.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,300 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/ca/Tu-espacio-europeo/derechos-obligaciones/empresas/inicio-gestion-cierre/derechos/patentes-marcas/servicios-oepm - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8400 g - Page host green energy status: NOT GREEN - Redundancy score: 78/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 33/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (78.9% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 519.95 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - [MEDIUM] Reduce DOM complexity and redundant markup - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 519.95 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 519.95 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 519.95 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9416 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 30 small targets on mobile and 70 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 519.95 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9416 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 12.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 14.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 520 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,169 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,420 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/va/index.html - Performance: 55/100 - Transfer: 3.10 MB - CO2 estimate: 1.2460 g - Page host green energy status: NOT GREEN - Redundancy score: 60/100 - Redundancy urgency: HIGH - Modularization score: 41/100 - Modularization urgency: HIGH - Dead-code score: 21/100 - Dead-code urgency: HIGH - Non-critical resources score: 29/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 38/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 92/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 17/100 - Third-party JS urgency: LOW - Estimated redundant transfer: 1.54 MB (49.6% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.13 MB savings) - [HIGH] Reduce unused javascript (est. 412.90 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - [MEDIUM] Reduce DOM complexity and redundant markup - Heavy initial-load requests: 7 (2.28 MB total) - On-demand modularization candidates: - [HIGH] Lazy-load offscreen images and media galleries (est. 241.55 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 412.90 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 1 request(s), 141.98 KB - Third-party JS recommendations: - [LOW] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.13 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 412.90 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 241.55 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 412.90 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.13 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8957 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 72 small targets on mobile and 120 on tablet. - [MEDIUM] Refactor fixed-width components - 4 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [HIGH] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 688.02 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 29.76 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.13 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 688.02 KB. - [HIGH] Right-size images for viewport - Avoid sending larger images than the rendered size needs. Estimated byte savings: 476.77 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 412.90 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 2.95 MB). - [HIGH] Largest Contentful Paint - Current value: 15.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 413 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,162 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Serve images in next-gen formats - Current value: Est savings of 688 KiB - WSG: 11 Optimize media to reduce resource use (https://www.w3.org/TR/web-sustainability-guidelines/#optimize-media-to-reduce-resource-use) - [HIGH] Defer offscreen images - Current value: Est savings of 242 KiB - WSG: 3 Modularize bandwidth-heavy components (https://www.w3.org/TR/web-sustainability-guidelines/#modularize-bandwidth-heavy-components) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/condiciones-trabajo/jornada-permisos - Performance: 56/100 - Transfer: 2.10 MB - CO2 estimate: 0.8449 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.9% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 532.04 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 94.47 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 532.04 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 532.04 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 94.47 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 532.04 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9175 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 55 small targets on mobile and 85 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 532.04 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9175 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.81 MB). - [HIGH] Largest Contentful Paint - Current value: 11.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 532 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,167 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,180 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/ca/Tu-espacio-europeo/derechos-obligaciones/empresas/inicio-gestion-cierre/derechos/dominios-es - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8398 g - Page host green energy status: NOT GREEN - Redundancy score: 69/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.6% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.52 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.52 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.52 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.52 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9544 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 37 small targets on mobile and 72 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.52 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9544 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 12.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 535 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,540 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,284 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/ca/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/igualdad - Performance: 55/100 - Transfer: 2.12 MB - CO2 estimate: 0.8528 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 34/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.3% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.46 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 111.77 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.46 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.46 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 111.77 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.46 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9155 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 49 small targets on mobile and 77 on tablet. - [MEDIUM] Refactor fixed-width components - 2 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.46 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9155 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.83 MB). - [HIGH] Largest Contentful Paint - Current value: 12.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 13.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,167 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,160 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/familia/menores/gestacion-sustitucion - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8381 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 36/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.57 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.57 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.57 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.57 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8981 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 31 small targets on mobile and 59 on tablet. - [MEDIUM] Refactor fixed-width components - 3 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.57 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8981 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 11.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 16.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,980 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/empresas/impuestos/especiales/electricidad - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8382 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.61 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.61 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.47 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.61 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.61 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8946 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 37 small targets on mobile and 65 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.61 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8946 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 11.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 13.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 535 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,950 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/avisoLegal.html - Performance: 56/100 - Transfer: 1.93 MB - CO2 estimate: 0.7759 g - Page host green energy status: NOT GREEN - Redundancy score: 71/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 31/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 45/100 - Metadata urgency: MEDIUM - Layout adaptation score: 28/100 - Layout adaptation urgency: LOW - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 17/100 - Third-party JS urgency: LOW - Estimated redundant transfer: 1.61 MB (83.2% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.15 MB savings) - [HIGH] Reduce unused javascript (est. 470.99 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 5 (1.70 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 73.65 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 470.99 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 1 request(s), 141.98 KB - Third-party JS recommendations: - [LOW] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.15 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 470.99 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 73.65 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 470.99 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.15 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9290 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Add meta description - Provide a concise description to improve machine interpretation and preview quality. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [MEDIUM] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 10 small targets on mobile and 42 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.15 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 470.99 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9290 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.78 MB). - [HIGH] Largest Contentful Paint - Current value: 11.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 471 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,174 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,290 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/ca/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/residencia/obtencion-residencia/registrar-familiares - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8380 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.57 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.57 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.57 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.57 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8986 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 31 small targets on mobile and 60 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.57 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8986 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 11.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,990 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/condiciones-trabajo/contratos-salario - Performance: 55/100 - Transfer: 2.10 MB - CO2 estimate: 0.8438 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (78.4% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 519.89 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 92.30 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 519.89 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 519.89 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 92.30 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 519.89 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9221 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 59 small targets on mobile and 91 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 519.89 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9221 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 12.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 16.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 520 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,167 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,220 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/empresas/inicio-gestion-cierre/insolvencia-liquidacion/masa-activa-pasiva-fin - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8390 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.6% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.64 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.64 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.64 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.64 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9241 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 33 small targets on mobile and 61 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.64 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9241 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 12.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,240 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/empresas/contratacion-publica/participar-licitaciones/asistencia-informacion - Performance: 56/100 - Transfer: 2.12 MB - CO2 estimate: 0.8520 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 34/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.3% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 532.64 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 98.91 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 532.64 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 532.64 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 98.91 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 532.64 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9213 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 44 small targets on mobile and 68 on tablet. - [MEDIUM] Refactor fixed-width components - 2 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 532.64 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9213 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.83 MB). - [HIGH] Largest Contentful Paint - Current value: 11.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 533 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,210 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tramites.html - Performance: 56/100 - Transfer: 1.93 MB - CO2 estimate: 0.7755 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 32/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 45/100 - Metadata urgency: MEDIUM - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 17/100 - Third-party JS urgency: LOW - Estimated redundant transfer: 1.61 MB (83.2% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.15 MB savings) - [HIGH] Reduce unused javascript (est. 470.78 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 5 (1.70 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 73.65 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 470.78 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 1 request(s), 141.97 KB - Third-party JS recommendations: - [LOW] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.15 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 470.78 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 73.65 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 470.78 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.15 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8958 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Add meta description - Provide a concise description to improve machine interpretation and preview quality. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [MEDIUM] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 17 small targets on mobile and 49 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.15 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 470.78 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8958 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.78 MB). - [HIGH] Largest Contentful Paint - Current value: 11.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 471 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,175 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,960 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/viajes/transporte-animales - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8413 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.3% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.68 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 91.14 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.68 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.47 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.68 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 91.14 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.68 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8985 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 37 small targets on mobile and 69 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.68 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8985 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 12.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 13.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,990 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/empresas/servicios/actividades-transfronterizas/registros-notariado - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8381 g - Page host green energy status: NOT GREEN - Redundancy score: 69/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 34/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 532.99 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 532.99 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 532.99 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 532.99 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9061 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 28 small targets on mobile and 59 on tablet. - [MEDIUM] Refactor fixed-width components - 2 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 532.99 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9061 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 11.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 16.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 533 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,060 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/empresas/empleados/seguridad-social/alta-empresario - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8388 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 38/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.6% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 532.72 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 532.72 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 532.72 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 532.72 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9213 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 44 small targets on mobile and 74 on tablet. - [MEDIUM] Refactor fixed-width components - 4 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 532.72 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9213 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 11.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 15.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 533 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,210 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/empresas/contratacion-publica/presentar-oferta - Performance: 55/100 - Transfer: 2.13 MB - CO2 estimate: 0.8576 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 36/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (77.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.59 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 122.83 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.59 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.59 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 122.83 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.59 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9302 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 47 small targets on mobile and 77 on tablet. - [MEDIUM] Refactor fixed-width components - 3 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.59 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9302 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.84 MB). - [HIGH] Largest Contentful Paint - Current value: 12.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 13.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,300 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/consumidores/conexion-servicios/residuos - Performance: 55/100 - Transfer: 2.13 MB - CO2 estimate: 0.8553 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 36/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.1% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.46 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 114.38 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.46 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.46 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 114.38 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.46 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9290 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 54 small targets on mobile and 84 on tablet. - [MEDIUM] Refactor fixed-width components - 3 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.46 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9290 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.83 MB). - [HIGH] Largest Contentful Paint - Current value: 12.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 16.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,290 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/consumidores/conexion-servicios/residuos - Performance: 55/100 - Transfer: 2.13 MB - CO2 estimate: 0.8552 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 36/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 33/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 4/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.0% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.55 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 114.38 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.55 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.55 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 114.38 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.55 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9260 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 54 small targets on mobile and 84 on tablet. - [MEDIUM] Refactor fixed-width components - 3 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 2 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 2 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.55 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9260 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.83 MB). - [HIGH] Largest Contentful Paint - Current value: 12.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 14.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,260 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/familia/genero - Performance: 56/100 - Transfer: 2.10 MB - CO2 estimate: 0.8448 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.0% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.51 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 99.59 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.51 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.51 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 99.59 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.51 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9239 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 44 small targets on mobile and 77 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.51 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9239 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.81 MB). - [HIGH] Largest Contentful Paint - Current value: 11.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.8 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,240 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/empresas/financiacion/nacional/registros-notariado - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8390 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.52 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.52 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.52 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.52 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9305 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 30 small targets on mobile and 59 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.52 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9305 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 11.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 14.4 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 535 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,310 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/empresas/inicio-gestion-cierre/seguro-credito - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8388 g - Page host green energy status: NOT GREEN - Redundancy score: 69/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.52 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.52 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.52 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.52 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9514 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 48 small targets on mobile and 79 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.52 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9514 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 12.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 535 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,510 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tramites/Relacionarte-electronicamente.html - Performance: 56/100 - Transfer: 1.95 MB - CO2 estimate: 0.7824 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 45/100 - Modularization urgency: HIGH - Dead-code score: 31/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 45/100 - Metadata urgency: MEDIUM - Layout adaptation score: 34/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 17/100 - Third-party JS urgency: LOW - Estimated redundant transfer: 1.60 MB (82.4% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 471.52 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 5 (1.70 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 74.43 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 471.52 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 1 request(s), 141.98 KB - Third-party JS recommendations: - [LOW] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 471.52 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 74.43 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 471.52 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8985 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Add meta description - Provide a concise description to improve machine interpretation and preview quality. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 38 small targets on mobile and 72 on tablet. - [MEDIUM] Refactor fixed-width components - 2 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 471.52 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8985 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 11.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 472 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,171 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,990 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/vehiculos/compraventa/matriculacion - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8385 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 34/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (79.0% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 518.99 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 73.65 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 518.99 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 518.99 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 73.65 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 518.99 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9065 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 23 small targets on mobile and 57 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 518.99 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9065 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 11.7 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.5 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 519 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,169 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,070 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/residencia/elecciones/europeas - Performance: 55/100 - Transfer: 2.09 MB - CO2 estimate: 0.8394 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 42/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.65 MB (78.9% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 519.07 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 519.07 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 519.07 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 519.07 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9288 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 32 small targets on mobile and 64 on tablet. - [MEDIUM] Refactor fixed-width components - 6 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 519.07 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9288 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.80 MB). - [HIGH] Largest Contentful Paint - Current value: 11.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 15.2 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 519 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,169 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,290 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/ayudas/gestionSuscripciones.html - Performance: 55/100 - Transfer: 2.00 MB - CO2 estimate: 0.8035 g - Page host green energy status: NOT GREEN - Redundancy score: 67/100 - Redundancy urgency: HIGH - Modularization score: 44/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 45/100 - Metadata urgency: MEDIUM - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 17/100 - Third-party JS urgency: LOW - Estimated redundant transfer: 1.60 MB (80.1% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 470.08 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 5 (1.70 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 73.65 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 470.08 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 1 request(s), 141.98 KB - Third-party JS recommendations: - [LOW] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 470.08 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 73.65 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 470.08 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8998 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Add meta description - Provide a concise description to improve machine interpretation and preview quality. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 22 small targets on mobile and 55 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 150.35 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 12.60 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 470.08 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8998 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 150.35 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.85 MB). - [HIGH] Largest Contentful Paint - Current value: 11.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 12.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 470 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,000 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/trabajo-jubilacion/reconocimiento-cualificaciones/asistencia - Performance: 56/100 - Transfer: 2.08 MB - CO2 estimate: 0.8374 g - Page host green energy status: NOT GREEN - Redundancy score: 69/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.8% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 532.73 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 73.65 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 532.73 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 532.73 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 73.65 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 532.73 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 8957 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 22 small targets on mobile and 54 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 532.73 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 8957 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 11.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 533 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 8,960 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/empresas/productos/normas-especificaciones/sector-farmaceutico0 - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8384 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 30/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.11 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.11 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.11 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.11 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9349 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 44 small targets on mobile and 79 on tablet. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.11 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9349 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 12.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 10.9 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 533 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,350 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/eu/Tu-espacio-europeo/derechos-obligaciones/empresas/servicios/permisos - Performance: 56/100 - Transfer: 2.13 MB - CO2 estimate: 0.8540 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 36/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.2% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.46 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 112.48 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.46 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.46 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 112.48 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.46 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9228 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 45 small targets on mobile and 77 on tablet. - [MEDIUM] Refactor fixed-width components - 3 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.46 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9228 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.83 MB). - [HIGH] Largest Contentful Paint - Current value: 12.3 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,230 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/gl/Tu-espacio-europeo/derechos-obligaciones/ciudadanos/educacion/practicas/contrato - Performance: 55/100 - Transfer: 2.10 MB - CO2 estimate: 0.8451 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 34/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (78.9% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 532.63 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 97.35 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 532.63 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.27 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 532.63 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 97.35 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 532.63 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9447 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 30 small targets on mobile and 63 on tablet. - [MEDIUM] Refactor fixed-width components - 2 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 532.63 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9447 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.81 MB). - [HIGH] Largest Contentful Paint - Current value: 12.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 533 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,450 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/en/Tu-espacio-europeo/derechos-obligaciones/empresas/contratacion-publica/participar-licitaciones/procedimientos-adjudicacion - Performance: 55/100 - Transfer: 2.13 MB - CO2 estimate: 0.8573 g - Page host green energy status: NOT GREEN - Redundancy score: 68/100 - Redundancy urgency: HIGH - Modularization score: 46/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 35/100 - Metadata urgency: MEDIUM - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (77.9% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 534.46 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 122.83 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 534.46 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.28 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 534.46 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 122.83 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 534.46 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9119 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Add canonical URL metadata - Use rel=canonical to reduce duplicate URL ambiguity for crawlers and tooling. - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 55 small targets on mobile and 79 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 534.46 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9119 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.84 MB). - [HIGH] Largest Contentful Paint - Current value: 12.6 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 14.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,168 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,120 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ### https://administracion.gob.es/pag_Home/ca/Tu-espacio-europeo/derechos-obligaciones/empresas/inicio-gestion-cierre/seguro-credito - Performance: 56/100 - Transfer: 2.09 MB - CO2 estimate: 0.8388 g - Page host green energy status: NOT GREEN - Redundancy score: 66/100 - Redundancy urgency: HIGH - Modularization score: 47/100 - Modularization urgency: HIGH - Dead-code score: 30/100 - Dead-code urgency: HIGH - Non-critical resources score: 35/100 - Non-critical resources urgency: HIGH - Form validation score: 70/100 - Form validation urgency: HIGH - Metadata score: 25/100 - Metadata urgency: LOW - Layout adaptation score: 32/100 - Layout adaptation urgency: MEDIUM - Lightweight security score: 31/100 - Lightweight security urgency: MEDIUM - Dependency maintenance score: 2/100 - Dependency maintenance urgency: MEDIUM - Expected-files score: 30/100 - Expected-files urgency: MEDIUM - Compression score: 100/100 - Compression urgency: HIGH - Optimization score: 100/100 - Optimization urgency: HIGH - Offline support score: 100/100 - Offline support urgency: HIGH - Third-party JS risk score: 34/100 - Third-party JS urgency: MEDIUM - Estimated redundant transfer: 1.66 MB (79.7% of transfer) - Redundancy recommendations: - [HIGH] Reduce unused css (est. 1.14 MB savings) - [HIGH] Reduce unused javascript (est. 533.65 KB savings) - [MEDIUM] Enable and verify text compression (est. 1.25 MB savings) - Heavy initial-load requests: 6 (1.84 MB total) - On-demand modularization candidates: - [MEDIUM] Lazy-load offscreen images and media galleries (est. 88.98 KB) - Load imagery only when it enters the viewport or when a user opens the relevant section. - [HIGH] Split JavaScript by route or interaction (est. 533.65 KB) - Move non-critical bundles behind route-level or event-driven imports so they are only fetched on demand. - [HIGH] Defer non-critical UI modules until after first render - Keep only above-the-fold resources in the initial path; hydrate or import secondary modules later. - [HIGH] Modularize heavy stylesheet asset from administracion.gob.es (est. 1.12 MB) - Split this stylesheet so component-specific CSS is delivered only when the component is rendered. - External CSS/JS hosting checks: - SCRIPT www.googletagmanager.com: GREEN (Google Cloud); 2 request(s), 283.28 KB - Third-party JS recommendations: - [MEDIUM] Maintain a third-party JavaScript inventory - Track 1 third-party script origin(s) and assign an owner plus business justification for each. - [MEDIUM] Reduce third-party script payload and requests - Defer non-critical tags, remove unused vendors, and gate scripts behind consent or user interaction. - Dead-code recommendations: - [HIGH] Remove unused CSS selectors and component styles (est. 1.14 MB savings) - Trim styles that never match rendered markup and split component CSS so only used styles are shipped. - [HIGH] Remove unused JavaScript and feature bundles (est. 533.65 KB savings) - Drop unused packages and feature code, or move them behind route-level or interaction-triggered imports. - Non-critical loading candidates: - [MEDIUM] Lazy-load offscreen images (est. 88.98 KB deferrable) - Load below-the-fold images only when they approach the viewport. - [HIGH] Defer non-critical JavaScript (est. 533.65 KB deferrable) - Split bundles and load feature code on interaction or route transition. - [HIGH] Inline critical CSS and defer remainder (est. 1.14 MB deferrable) - Ship only above-the-fold CSS in initial render path and defer non-critical styles. - [HIGH] Eliminate render-blocking resources (est. 9312 ms unblock) - Defer scripts/styles not required for first paint and preload only truly critical assets. - [HIGH] Evaluate deferred loading for heavy stylesheet from administracion.gob.es (est. 1.12 MB deferrable) - Confirm this asset is required for first paint; defer or lazy-load if not critical. - Form validation recommendations: - [HIGH] Missing associated label - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] No error messaging hook - 1 unique form control signature(s) on this page include this issue. - [MEDIUM] Missing autocomplete for tooling support - 1 unique form control signature(s) on this page include this issue. - Metadata recommendations: - [MEDIUM] Complete Open Graph metadata - Include og:title, og:description, og:type, and og:url for robust machine-readable sharing metadata. - [LOW] Add twitter:card metadata - Include twitter card metadata to improve cross-platform machine-readable previews. - Layout adaptation recommendations: - [HIGH] Increase touch target sizes - Ensure interactive controls are at least 44x44 CSS px. Detected 48 small targets on mobile and 79 on tablet. - [MEDIUM] Refactor fixed-width components - 1 element(s) exceeded viewport width in tested layouts; use responsive component constraints. - Lightweight security recommendations: - [HIGH] Add a Content-Security-Policy header - Add an appropriate CSP to reduce script injection and resource loading risk. - [LOW] Define a Permissions-Policy - Restrict browser capabilities to only what the application needs. - [MEDIUM] Add SRI to external scripts - 1 external script tag(s) are missing integrity attributes. - Dependency maintenance recommendations: - [MEDIUM] Add integrity attributes for external dependencies - 1 external script dependency URL(s) are missing SRI integrity attributes. - Language/runtime version recommendations: - [LOW] No obvious outdated runtime version disclosed - 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. - Expected-files recommendations: - [MEDIUM] Add beneficial discoverability and maintenance files - Missing beneficial file(s): /.well-known/security.txt, /manifest.webmanifest, /favicon.ico. - Compression recommendations: - [HIGH] Enable Brotli/gzip for text assets - Compress HTML, CSS, JS, JSON, SVG, and XML responses with Brotli or gzip. Estimated savings: 1.25 MB. - [HIGH] Minify CSS before transfer - Minification amplifies compression efficiency and reduces payload size. Estimated savings: 871.06 KB. - [MEDIUM] Use modern image compression formats - Prefer AVIF/WebP over legacy formats where possible to reduce transfer size. Estimated savings: 123.71 KB. - [MEDIUM] Minify JavaScript before transfer - Minify JS bundles so transport compression produces better results with fewer bytes. Estimated savings: 62.26 KB. - [LOW] Improve image encoding quality/size - Re-encode oversized images and tune compression quality for significant byte savings. Estimated savings: 7.37 KB. - Optimization recommendations: - [HIGH] Enable text compression - Serve text assets with Brotli or gzip to remove avoidable transfer bloat. Estimated byte savings: 1.25 MB. - [HIGH] Remove unused CSS - Trim unused selectors and split CSS so only needed styles are shipped. Estimated byte savings: 1.14 MB. - [HIGH] Minify CSS - Use minified production CSS output to reduce bytes in transit. Estimated byte savings: 871.06 KB. - [HIGH] Remove unused JavaScript - Reduce dead JS and split bundles to avoid shipping non-critical code. Estimated byte savings: 533.65 KB. - [HIGH] Eliminate render-blocking resources - Inline critical assets and defer non-critical scripts/styles for faster rendering. Estimated render unblocking: 9312 ms. - [MEDIUM] Serve images in next-gen formats - Convert high-byte images to more efficient formats such as AVIF or WebP. Estimated byte savings: 123.71 KB. - Offline/caching recommendations: - [HIGH] Add service worker support - Register a service worker to support resilient caching and offline behavior for key routes. - [HIGH] Ensure critical routes work offline - Provide an offline fallback strategy for key pages and shell assets. - [MEDIUM] Improve web app manifest support - Complete manifest fields so clients can install and run an app-like experience. - [MEDIUM] Support offline start URL behavior - Ensure start URL and shell routing can load in disconnected conditions. - [MEDIUM] Strengthen static asset cache TTL - Improve long-lived cache headers for immutable static assets (estimated savings opportunity: 1.79 MB). - [HIGH] Largest Contentful Paint - Current value: 12.0 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Speed Index - Current value: 11.1 s - WSG: 1 Set goals based on performance and energy impact (https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact) - [HIGH] Reduce unused JavaScript - Current value: Est savings of 534 KiB - WSG: 16 Use dependencies appropriately and ensure maintenance (https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance) - [HIGH] Reduce unused CSS - Current value: Est savings of 1,170 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) - [HIGH] Eliminate render-blocking resources - Current value: Est savings of 9,310 ms - WSG: 18 Use the most efficient solution for your service (https://www.w3.org/TR/web-sustainability-guidelines/#use-the-most-efficient-solution-for-your-service) - [HIGH] Enable text compression - Current value: Est savings of 1,283 KiB - WSG: 2 Remove unnecessary or redundant information (https://www.w3.org/TR/web-sustainability-guidelines/#remove-unnecessary-or-redundant-information) ## Copy/Paste Issue Snippets ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 17.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 13.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 412 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 14.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 413 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 10.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 9.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 519 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 10.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 13.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 518 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 10.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 15.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 518 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 10.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 9.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 535 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.2 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 532 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 10.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.2 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 519 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 535 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 533 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 13.2 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 14.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 519 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 14.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 535 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 535 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 15.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 532 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.2 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 533 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 519 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 14.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 535 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.2 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 471 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 532 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 520 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 9.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 9.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 17.2 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 411 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 535 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 14.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 14.2 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 519 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 533 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.2 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 15.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 519 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 519 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 13.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 470 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 533 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 15.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 22.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 643 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.2 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 519 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 13.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.2 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 13.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 533 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 13.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 533 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 13.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 535 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 533 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 13.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 535 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 13.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 14.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 519 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 533 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 14.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.2 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 533 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 520 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 535 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 15.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 14.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 520 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 15.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 413 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 532 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 535 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 13.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 16.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 13.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 535 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 471 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 16.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 520 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 533 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 471 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 13.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 16.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 533 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 15.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 533 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 13.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 16.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 14.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.8 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 14.4 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 535 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 535 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 472 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.7 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.5 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 519 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 15.2 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 519 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 12.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 470 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 11.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 533 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 10.9 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 533 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.3 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 533 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.6 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 14.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Largest Contentful Paint - Lighthouse audit: largest-contentful-paint - Current value: 12.0 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/) ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Speed Index - Lighthouse audit: speed-index - Current value: 11.1 s - WSG guideline: 1 Set goals based on performance and energy impact - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#set-goals-based-on-performance-and-energy-impact ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ``` ```md ## Improve Reduce unused JavaScript - Lighthouse audit: unused-javascript - Current value: Est savings of 534 KiB - WSG guideline: 16 Use dependencies appropriately and ensure maintenance - WSG link: https://www.w3.org/TR/web-sustainability-guidelines/#use-dependencies-appropriately-and-ensure-maintenance ### Why this matters 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/). ### Definition of done - [ ] Metric improves in Lighthouse on key templates - [ ] Changes documented in release notes - [ ] Re-scan confirms improvement ```