{
 "schema_version": "0.1",
 "site": "www.luton.gov.uk",
 "scan_week": "2026-W45",
 "generated_at": "2026-11-04T16:43:58.882Z",
 "source_files": [
  "docs/reports/www.luton.gov.uk/2026-W45/",
  "data/www.luton.gov.uk/findings.json",
  "data/www.luton.gov.uk/2026-W45/summary.json"
 ],
 "summary": {
  "pages_known": 2952,
  "pages_scanned_this_week": 1000,
  "pages_with_known_issues": 2946,
  "findings": 8,
  "clusters": 8,
  "new_findings": 0,
  "persistent_findings": 7,
  "high_priority_findings": 7
 },
 "top_risks": [
  {
   "finding_id": "VS-f18df681",
   "rule_id": "region",
   "rule_label": "All page content should be contained by landmarks",
   "severity": "Serious",
   "priority": "p1",
   "trend": "persistent",
   "pages_affected": 980,
   "rationale": "Serious severity; affects 980 pages; persistent across weeks",
   "top_url": "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A106&f%5B1%5D=localgov_directories_facets%3A122&f%5B2%5D=localgov_directories_facets%3A166&f%5B3%5D=localgov_directories_facets%3A201&f%5B4%5D=localgov_directories_facets%3A235&f%5B5%5D=localgov_directories_facets%3A247"
  },
  {
   "finding_id": "VS-58346bcf",
   "rule_id": "sia-r84",
   "rule_label": "Scrollable element is keyboard accessible",
   "severity": "Moderate",
   "priority": "p2",
   "trend": "persistent",
   "pages_affected": 485,
   "rationale": "affects 485 pages; persistent across weeks",
   "top_url": "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A118&f%5B1%5D=localgov_directories_facets%3A128&f%5B2%5D=localgov_directories_facets%3A151&f%5B3%5D=localgov_directories_facets%3A172&f%5B4%5D=localgov_directories_facets%3A177&f%5B5%5D=localgov_directories_facets%3A211&f%5B6%5D=localgov_directories_facets%3A230&f%5B7%5D=localgov_directories_facets%3A243&f%5B8%5D=localgov_directories_facets%3A267"
  },
  {
   "finding_id": "VS-2208081b",
   "rule_id": "sia-r73",
   "rule_label": "Paragraph line height is at least 1.5",
   "severity": "Moderate",
   "priority": "p2",
   "trend": "persistent",
   "pages_affected": 485,
   "rationale": "affects 485 pages; persistent across weeks",
   "top_url": "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A118&f%5B1%5D=localgov_directories_facets%3A128&f%5B2%5D=localgov_directories_facets%3A151&f%5B3%5D=localgov_directories_facets%3A172&f%5B4%5D=localgov_directories_facets%3A177&f%5B5%5D=localgov_directories_facets%3A211&f%5B6%5D=localgov_directories_facets%3A230&f%5B7%5D=localgov_directories_facets%3A243&f%5B8%5D=localgov_directories_facets%3A267"
  },
  {
   "finding_id": "VS-cb53cc4d",
   "rule_id": "sia-r111",
   "rule_label": "Target size is at least 44×44 CSS pixels (Enhanced)",
   "severity": "Moderate",
   "priority": "p2",
   "trend": "persistent",
   "pages_affected": 485,
   "rationale": "affects 485 pages; persistent across weeks",
   "top_url": "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A118&f%5B1%5D=localgov_directories_facets%3A128&f%5B2%5D=localgov_directories_facets%3A151&f%5B3%5D=localgov_directories_facets%3A172&f%5B4%5D=localgov_directories_facets%3A177&f%5B5%5D=localgov_directories_facets%3A211&f%5B6%5D=localgov_directories_facets%3A230&f%5B7%5D=localgov_directories_facets%3A243&f%5B8%5D=localgov_directories_facets%3A267"
  },
  {
   "finding_id": "VS-7118fead",
   "rule_id": "sia-r61",
   "rule_label": "Page starts with a level 1 heading",
   "severity": "Moderate",
   "priority": "p2",
   "trend": "persistent",
   "pages_affected": 485,
   "rationale": "affects 485 pages; persistent across weeks",
   "top_url": "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A118&f%5B1%5D=localgov_directories_facets%3A128&f%5B2%5D=localgov_directories_facets%3A151&f%5B3%5D=localgov_directories_facets%3A172&f%5B4%5D=localgov_directories_facets%3A177&f%5B5%5D=localgov_directories_facets%3A211&f%5B6%5D=localgov_directories_facets%3A230&f%5B7%5D=localgov_directories_facets%3A243&f%5B8%5D=localgov_directories_facets%3A267"
  },
  {
   "finding_id": "VS-c18be945",
   "rule_id": "sia-r57",
   "rule_label": "Text is included in a landmark",
   "severity": "Moderate",
   "priority": "p2",
   "trend": "persistent",
   "pages_affected": 485,
   "rationale": "affects 485 pages; persistent across weeks",
   "top_url": "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A118&f%5B1%5D=localgov_directories_facets%3A128&f%5B2%5D=localgov_directories_facets%3A151&f%5B3%5D=localgov_directories_facets%3A172&f%5B4%5D=localgov_directories_facets%3A177&f%5B5%5D=localgov_directories_facets%3A211&f%5B6%5D=localgov_directories_facets%3A230&f%5B7%5D=localgov_directories_facets%3A243&f%5B8%5D=localgov_directories_facets%3A267"
  },
  {
   "finding_id": "VS-aa242c2d",
   "rule_id": "sia-r87",
   "rule_label": "First focusable element is link to main content",
   "severity": "Moderate",
   "priority": "p2",
   "trend": "persistent",
   "pages_affected": 485,
   "rationale": "affects 485 pages; persistent across weeks",
   "top_url": "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A118&f%5B1%5D=localgov_directories_facets%3A128&f%5B2%5D=localgov_directories_facets%3A151&f%5B3%5D=localgov_directories_facets%3A172&f%5B4%5D=localgov_directories_facets%3A177&f%5B5%5D=localgov_directories_facets%3A211&f%5B6%5D=localgov_directories_facets%3A230&f%5B7%5D=localgov_directories_facets%3A243&f%5B8%5D=localgov_directories_facets%3A267"
  }
 ],
 "findings": [
  {
   "finding_id": "VS-f18df681",
   "fingerprint": "09987718",
   "rule_id": "region",
   "rule_label": "All page content should be contained by landmarks",
   "engine": "axe-core",
   "tool": "axe-core",
   "wcag_sc": null,
   "wcag_name": null,
   "wcag_level": null,
   "wcag_version": null,
   "wcag_category": "Best Practice",
   "rule_url": "https://dequeuniversity.com/rules/axe/4.14/region?application=axeAPI",
   "severity": "Serious",
   "priority": "p1",
   "confidence": "high",
   "rationale": "Serious severity; affects 980 pages; persistent across weeks",
   "trend": {
    "status": "persistent",
    "first_observed": "2026-W44",
    "last_observed": "2026-W45",
    "weeks_observed": 2,
    "affected_pages_current": 980,
    "affected_pages_previous": 1966
   },
   "frequency": {
    "instances": 980,
    "pages_affected": 980,
    "total_pages_scanned": 1000
   },
   "on_key_page": false,
   "summary": "All page content should be contained by landmarks (best practice, not a WCAG requirement)",
   "description": "All page content should be contained by landmarks. Detected by axe-core rule region on 980 of 1000 scanned pages (980 instances).",
   "remediation_tip": "Wrap all page content in landmarks (header, nav, main, footer) so users can navigate by region.",
   "suggested_fix": "See remediation guidance: https://dequeuniversity.com/rules/axe/4.14/region?application=axeAPI",
   "expected_behavior": "Element passes axe-core rule region.",
   "actual_behavior": "All page content should be contained by landmarks. Detected by axe-core rule region on 980 of 1000 scanned pages (980 instances).",
   "testing_environment": "Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.",
   "representative_urls": [
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A106&f%5B1%5D=localgov_directories_facets%3A122&f%5B2%5D=localgov_directories_facets%3A166&f%5B3%5D=localgov_directories_facets%3A201&f%5B4%5D=localgov_directories_facets%3A235&f%5B5%5D=localgov_directories_facets%3A247",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A116&f%5B1%5D=localgov_directories_facets%3A244",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A118&f%5B1%5D=localgov_directories_facets%3A128&f%5B2%5D=localgov_directories_facets%3A151&f%5B3%5D=localgov_directories_facets%3A172&f%5B4%5D=localgov_directories_facets%3A177&f%5B5%5D=localgov_directories_facets%3A211&f%5B6%5D=localgov_directories_facets%3A230&f%5B7%5D=localgov_directories_facets%3A243&f%5B8%5D=localgov_directories_facets%3A267"
   ],
   "html_fragments": [
    {
     "fingerprint": "94ec10c6",
     "html": "<a href=\"#main-content\" class=\"visually-hidden focusable skip-link\">\n      Skip to main content\n    </a>",
     "selectors": [
      ".focusable"
     ]
    }
   ],
   "url_patterns": [
    {
     "pattern": "/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order",
     "count": 24
    },
    {
     "pattern": "/business-licences-permits/business-rates/business-rates-reliefs-reductions/small-business-rate-relief",
     "count": 1
    }
   ],
   "associated_technologies": [],
   "impact": {
    "groups": [],
    "summary": "Not captured by automated scan — requires manual testing."
   }
  },
  {
   "finding_id": "VS-58346bcf",
   "fingerprint": "c9b6623f",
   "rule_id": "sia-r84",
   "rule_label": "Scrollable element is keyboard accessible",
   "engine": "alfa",
   "tool": "Siteimprove Alfa",
   "wcag_sc": "2.1.1",
   "wcag_name": "Keyboard",
   "wcag_level": "A",
   "wcag_version": "2.0",
   "wcag_category": "WCAG 2.0 A",
   "rule_url": "https://alfa.siteimprove.com/rules/sia-r84",
   "severity": "Moderate",
   "priority": "p2",
   "confidence": "high",
   "rationale": "affects 485 pages; persistent across weeks",
   "trend": {
    "status": "persistent",
    "first_observed": "2026-W44",
    "last_observed": "2026-W45",
    "weeks_observed": 2,
    "affected_pages_current": 485,
    "affected_pages_previous": 961
   },
   "frequency": {
    "instances": 485,
    "pages_affected": 485,
    "total_pages_scanned": 1000
   },
   "on_key_page": false,
   "summary": "Scrollable element is keyboard accessible (WCAG 2.1.1)",
   "description": "Scrollable element is keyboard accessible. Detected by Siteimprove Alfa rule sia-r84 on 485 of 1000 scanned pages (485 instances).",
   "remediation_tip": null,
   "suggested_fix": "See remediation guidance: https://alfa.siteimprove.com/rules/sia-r84",
   "expected_behavior": "Element passes Siteimprove Alfa rule sia-r84 (WCAG 2.1.1).",
   "actual_behavior": "Scrollable element is keyboard accessible. Detected by Siteimprove Alfa rule sia-r84 on 485 of 1000 scanned pages (485 instances).",
   "testing_environment": "Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.",
   "representative_urls": [
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A118&f%5B1%5D=localgov_directories_facets%3A128&f%5B2%5D=localgov_directories_facets%3A151&f%5B3%5D=localgov_directories_facets%3A172&f%5B4%5D=localgov_directories_facets%3A177&f%5B5%5D=localgov_directories_facets%3A211&f%5B6%5D=localgov_directories_facets%3A230&f%5B7%5D=localgov_directories_facets%3A243&f%5B8%5D=localgov_directories_facets%3A267",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A132&f%5B1%5D=localgov_directories_facets%3A169&f%5B2%5D=localgov_directories_facets%3A193&f%5B3%5D=localgov_directories_facets%3A194&f%5B4%5D=localgov_directories_facets%3A222&f%5B5%5D=localgov_directories_facets%3A230&f%5B6%5D=localgov_directories_facets%3A236&f%5B7%5D=localgov_directories_facets%3A242",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A144&f%5B1%5D=localgov_directories_facets%3A191&f%5B2%5D=localgov_directories_facets%3A199&f%5B3%5D=localgov_directories_facets%3A233&f%5B4%5D=localgov_directories_facets%3A242"
   ],
   "html_fragments": [],
   "url_patterns": [
    {
     "pattern": "/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order",
     "count": 25
    }
   ],
   "associated_technologies": [],
   "impact": {
    "groups": [
     {
      "code": "WV",
      "group": "Without vision",
      "prevalence": 0.01,
      "percent": "1.0%",
      "estimatedExcluded": null
     },
     {
      "code": "LM",
      "group": "Limited manipulation/strength",
      "prevalence": 0.13,
      "percent": "13.0%",
      "estimatedExcluded": null
     },
     {
      "code": "LR",
      "group": "Limited reach",
      "prevalence": 0.02,
      "percent": "2.0%",
      "estimatedExcluded": null
     }
    ],
    "summary": "Affects Without vision (1.0%), Limited manipulation/strength (13.0%), Limited reach (2.0%)."
   }
  },
  {
   "finding_id": "VS-2208081b",
   "fingerprint": "40bbca09",
   "rule_id": "sia-r73",
   "rule_label": "Paragraph line height is at least 1.5",
   "engine": "alfa",
   "tool": "Siteimprove Alfa",
   "wcag_sc": "1.4.8",
   "wcag_name": "Visual Presentation",
   "wcag_level": "AAA",
   "wcag_version": "2.0",
   "wcag_category": "WCAG 2.x AAA",
   "rule_url": "https://alfa.siteimprove.com/rules/sia-r73",
   "severity": "Moderate",
   "priority": "p2",
   "confidence": "high",
   "rationale": "affects 485 pages; persistent across weeks",
   "trend": {
    "status": "persistent",
    "first_observed": "2026-W44",
    "last_observed": "2026-W45",
    "weeks_observed": 2,
    "affected_pages_current": 485,
    "affected_pages_previous": 961
   },
   "frequency": {
    "instances": 485,
    "pages_affected": 485,
    "total_pages_scanned": 1000
   },
   "on_key_page": false,
   "summary": "Paragraph line height is at least 1.5 (WCAG 1.4.8)",
   "description": "Paragraph line height is at least 1.5. Detected by Siteimprove Alfa rule sia-r73 on 485 of 1000 scanned pages (485 instances).",
   "remediation_tip": null,
   "suggested_fix": "See remediation guidance: https://alfa.siteimprove.com/rules/sia-r73",
   "expected_behavior": "Element passes Siteimprove Alfa rule sia-r73 (WCAG 1.4.8).",
   "actual_behavior": "Paragraph line height is at least 1.5. Detected by Siteimprove Alfa rule sia-r73 on 485 of 1000 scanned pages (485 instances).",
   "testing_environment": "Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.",
   "representative_urls": [
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A118&f%5B1%5D=localgov_directories_facets%3A128&f%5B2%5D=localgov_directories_facets%3A151&f%5B3%5D=localgov_directories_facets%3A172&f%5B4%5D=localgov_directories_facets%3A177&f%5B5%5D=localgov_directories_facets%3A211&f%5B6%5D=localgov_directories_facets%3A230&f%5B7%5D=localgov_directories_facets%3A243&f%5B8%5D=localgov_directories_facets%3A267",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A132&f%5B1%5D=localgov_directories_facets%3A169&f%5B2%5D=localgov_directories_facets%3A193&f%5B3%5D=localgov_directories_facets%3A194&f%5B4%5D=localgov_directories_facets%3A222&f%5B5%5D=localgov_directories_facets%3A230&f%5B6%5D=localgov_directories_facets%3A236&f%5B7%5D=localgov_directories_facets%3A242",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A144&f%5B1%5D=localgov_directories_facets%3A191&f%5B2%5D=localgov_directories_facets%3A199&f%5B3%5D=localgov_directories_facets%3A233&f%5B4%5D=localgov_directories_facets%3A242"
   ],
   "html_fragments": [],
   "url_patterns": [
    {
     "pattern": "/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order",
     "count": 25
    }
   ],
   "associated_technologies": [],
   "impact": {
    "groups": [],
    "summary": "Not captured by automated scan — requires manual testing."
   }
  },
  {
   "finding_id": "VS-cb53cc4d",
   "fingerprint": "1738fa81",
   "rule_id": "sia-r111",
   "rule_label": "Target size is at least 44×44 CSS pixels (Enhanced)",
   "engine": "alfa",
   "tool": "Siteimprove Alfa",
   "wcag_sc": "2.5.5",
   "wcag_name": "Target Size (Enhanced)",
   "wcag_level": "AAA",
   "wcag_version": "2.1",
   "wcag_category": "WCAG 2.x AAA",
   "rule_url": "https://alfa.siteimprove.com/rules/sia-r111",
   "severity": "Moderate",
   "priority": "p2",
   "confidence": "high",
   "rationale": "affects 485 pages; persistent across weeks",
   "trend": {
    "status": "persistent",
    "first_observed": "2026-W44",
    "last_observed": "2026-W45",
    "weeks_observed": 2,
    "affected_pages_current": 485,
    "affected_pages_previous": 961
   },
   "frequency": {
    "instances": 16951,
    "pages_affected": 485,
    "total_pages_scanned": 1000
   },
   "on_key_page": false,
   "summary": "Target size is at least 44×44 CSS pixels (Enhanced) (WCAG 2.5.5)",
   "description": "Target size is at least 44×44 CSS pixels (Enhanced). Detected by Siteimprove Alfa rule sia-r111 on 485 of 1000 scanned pages (16951 instances).",
   "remediation_tip": null,
   "suggested_fix": "See remediation guidance: https://alfa.siteimprove.com/rules/sia-r111",
   "expected_behavior": "Element passes Siteimprove Alfa rule sia-r111 (WCAG 2.5.5).",
   "actual_behavior": "Target size is at least 44×44 CSS pixels (Enhanced). Detected by Siteimprove Alfa rule sia-r111 on 485 of 1000 scanned pages (16951 instances).",
   "testing_environment": "Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.",
   "representative_urls": [
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A118&f%5B1%5D=localgov_directories_facets%3A128&f%5B2%5D=localgov_directories_facets%3A151&f%5B3%5D=localgov_directories_facets%3A172&f%5B4%5D=localgov_directories_facets%3A177&f%5B5%5D=localgov_directories_facets%3A211&f%5B6%5D=localgov_directories_facets%3A230&f%5B7%5D=localgov_directories_facets%3A243&f%5B8%5D=localgov_directories_facets%3A267",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A132&f%5B1%5D=localgov_directories_facets%3A169&f%5B2%5D=localgov_directories_facets%3A193&f%5B3%5D=localgov_directories_facets%3A194&f%5B4%5D=localgov_directories_facets%3A222&f%5B5%5D=localgov_directories_facets%3A230&f%5B6%5D=localgov_directories_facets%3A236&f%5B7%5D=localgov_directories_facets%3A242",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A144&f%5B1%5D=localgov_directories_facets%3A191&f%5B2%5D=localgov_directories_facets%3A199&f%5B3%5D=localgov_directories_facets%3A233&f%5B4%5D=localgov_directories_facets%3A242"
   ],
   "html_fragments": [],
   "url_patterns": [
    {
     "pattern": "/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order",
     "count": 25
    }
   ],
   "associated_technologies": [],
   "impact": {
    "groups": [],
    "summary": "Not captured by automated scan — requires manual testing."
   }
  },
  {
   "finding_id": "VS-7118fead",
   "fingerprint": "0d932ac9",
   "rule_id": "sia-r61",
   "rule_label": "Page starts with a level 1 heading",
   "engine": "alfa",
   "tool": "Siteimprove Alfa",
   "wcag_sc": null,
   "wcag_name": null,
   "wcag_level": null,
   "wcag_version": null,
   "wcag_category": "Best Practice",
   "rule_url": "https://alfa.siteimprove.com/rules/sia-r61",
   "severity": "Moderate",
   "priority": "p2",
   "confidence": "high",
   "rationale": "affects 485 pages; persistent across weeks",
   "trend": {
    "status": "persistent",
    "first_observed": "2026-W44",
    "last_observed": "2026-W45",
    "weeks_observed": 2,
    "affected_pages_current": 485,
    "affected_pages_previous": 961
   },
   "frequency": {
    "instances": 485,
    "pages_affected": 485,
    "total_pages_scanned": 1000
   },
   "on_key_page": false,
   "summary": "Page starts with a level 1 heading (best practice, not a WCAG requirement)",
   "description": "Page starts with a level 1 heading. Detected by Siteimprove Alfa rule sia-r61 on 485 of 1000 scanned pages (485 instances).",
   "remediation_tip": null,
   "suggested_fix": "See remediation guidance: https://alfa.siteimprove.com/rules/sia-r61",
   "expected_behavior": "Element passes Siteimprove Alfa rule sia-r61.",
   "actual_behavior": "Page starts with a level 1 heading. Detected by Siteimprove Alfa rule sia-r61 on 485 of 1000 scanned pages (485 instances).",
   "testing_environment": "Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.",
   "representative_urls": [
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A118&f%5B1%5D=localgov_directories_facets%3A128&f%5B2%5D=localgov_directories_facets%3A151&f%5B3%5D=localgov_directories_facets%3A172&f%5B4%5D=localgov_directories_facets%3A177&f%5B5%5D=localgov_directories_facets%3A211&f%5B6%5D=localgov_directories_facets%3A230&f%5B7%5D=localgov_directories_facets%3A243&f%5B8%5D=localgov_directories_facets%3A267",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A132&f%5B1%5D=localgov_directories_facets%3A169&f%5B2%5D=localgov_directories_facets%3A193&f%5B3%5D=localgov_directories_facets%3A194&f%5B4%5D=localgov_directories_facets%3A222&f%5B5%5D=localgov_directories_facets%3A230&f%5B6%5D=localgov_directories_facets%3A236&f%5B7%5D=localgov_directories_facets%3A242",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A144&f%5B1%5D=localgov_directories_facets%3A191&f%5B2%5D=localgov_directories_facets%3A199&f%5B3%5D=localgov_directories_facets%3A233&f%5B4%5D=localgov_directories_facets%3A242"
   ],
   "html_fragments": [],
   "url_patterns": [
    {
     "pattern": "/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order",
     "count": 25
    }
   ],
   "associated_technologies": [],
   "impact": {
    "groups": [],
    "summary": "Not captured by automated scan — requires manual testing."
   }
  },
  {
   "finding_id": "VS-c18be945",
   "fingerprint": "8634e2fd",
   "rule_id": "sia-r57",
   "rule_label": "Text is included in a landmark",
   "engine": "alfa",
   "tool": "Siteimprove Alfa",
   "wcag_sc": null,
   "wcag_name": null,
   "wcag_level": null,
   "wcag_version": null,
   "wcag_category": "Best Practice",
   "rule_url": "https://alfa.siteimprove.com/rules/sia-r57",
   "severity": "Moderate",
   "priority": "p2",
   "confidence": "high",
   "rationale": "affects 485 pages; persistent across weeks",
   "trend": {
    "status": "persistent",
    "first_observed": "2026-W44",
    "last_observed": "2026-W45",
    "weeks_observed": 2,
    "affected_pages_current": 485,
    "affected_pages_previous": 961
   },
   "frequency": {
    "instances": 970,
    "pages_affected": 485,
    "total_pages_scanned": 1000
   },
   "on_key_page": false,
   "summary": "Text is included in a landmark (best practice, not a WCAG requirement)",
   "description": "Text is included in a landmark. Detected by Siteimprove Alfa rule sia-r57 on 485 of 1000 scanned pages (970 instances).",
   "remediation_tip": null,
   "suggested_fix": "See remediation guidance: https://alfa.siteimprove.com/rules/sia-r57",
   "expected_behavior": "Element passes Siteimprove Alfa rule sia-r57.",
   "actual_behavior": "Text is included in a landmark. Detected by Siteimprove Alfa rule sia-r57 on 485 of 1000 scanned pages (970 instances).",
   "testing_environment": "Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.",
   "representative_urls": [
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A118&f%5B1%5D=localgov_directories_facets%3A128&f%5B2%5D=localgov_directories_facets%3A151&f%5B3%5D=localgov_directories_facets%3A172&f%5B4%5D=localgov_directories_facets%3A177&f%5B5%5D=localgov_directories_facets%3A211&f%5B6%5D=localgov_directories_facets%3A230&f%5B7%5D=localgov_directories_facets%3A243&f%5B8%5D=localgov_directories_facets%3A267",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A132&f%5B1%5D=localgov_directories_facets%3A169&f%5B2%5D=localgov_directories_facets%3A193&f%5B3%5D=localgov_directories_facets%3A194&f%5B4%5D=localgov_directories_facets%3A222&f%5B5%5D=localgov_directories_facets%3A230&f%5B6%5D=localgov_directories_facets%3A236&f%5B7%5D=localgov_directories_facets%3A242",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A144&f%5B1%5D=localgov_directories_facets%3A191&f%5B2%5D=localgov_directories_facets%3A199&f%5B3%5D=localgov_directories_facets%3A233&f%5B4%5D=localgov_directories_facets%3A242"
   ],
   "html_fragments": [],
   "url_patterns": [
    {
     "pattern": "/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order",
     "count": 25
    }
   ],
   "associated_technologies": [],
   "impact": {
    "groups": [],
    "summary": "Not captured by automated scan — requires manual testing."
   }
  },
  {
   "finding_id": "VS-aa242c2d",
   "fingerprint": "9bf7674d",
   "rule_id": "sia-r87",
   "rule_label": "First focusable element is link to main content",
   "engine": "alfa",
   "tool": "Siteimprove Alfa",
   "wcag_sc": null,
   "wcag_name": null,
   "wcag_level": null,
   "wcag_version": null,
   "wcag_category": "Best Practice",
   "rule_url": "https://alfa.siteimprove.com/rules/sia-r87",
   "severity": "Moderate",
   "priority": "p2",
   "confidence": "high",
   "rationale": "affects 485 pages; persistent across weeks",
   "trend": {
    "status": "persistent",
    "first_observed": "2026-W44",
    "last_observed": "2026-W45",
    "weeks_observed": 2,
    "affected_pages_current": 485,
    "affected_pages_previous": 961
   },
   "frequency": {
    "instances": 485,
    "pages_affected": 485,
    "total_pages_scanned": 1000
   },
   "on_key_page": false,
   "summary": "First focusable element is link to main content (best practice, not a WCAG requirement)",
   "description": "First focusable element is link to main content. Detected by Siteimprove Alfa rule sia-r87 on 485 of 1000 scanned pages (485 instances).",
   "remediation_tip": null,
   "suggested_fix": "See remediation guidance: https://alfa.siteimprove.com/rules/sia-r87",
   "expected_behavior": "Element passes Siteimprove Alfa rule sia-r87.",
   "actual_behavior": "First focusable element is link to main content. Detected by Siteimprove Alfa rule sia-r87 on 485 of 1000 scanned pages (485 instances).",
   "testing_environment": "Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.",
   "representative_urls": [
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A118&f%5B1%5D=localgov_directories_facets%3A128&f%5B2%5D=localgov_directories_facets%3A151&f%5B3%5D=localgov_directories_facets%3A172&f%5B4%5D=localgov_directories_facets%3A177&f%5B5%5D=localgov_directories_facets%3A211&f%5B6%5D=localgov_directories_facets%3A230&f%5B7%5D=localgov_directories_facets%3A243&f%5B8%5D=localgov_directories_facets%3A267",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A132&f%5B1%5D=localgov_directories_facets%3A169&f%5B2%5D=localgov_directories_facets%3A193&f%5B3%5D=localgov_directories_facets%3A194&f%5B4%5D=localgov_directories_facets%3A222&f%5B5%5D=localgov_directories_facets%3A230&f%5B6%5D=localgov_directories_facets%3A236&f%5B7%5D=localgov_directories_facets%3A242",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A144&f%5B1%5D=localgov_directories_facets%3A191&f%5B2%5D=localgov_directories_facets%3A199&f%5B3%5D=localgov_directories_facets%3A233&f%5B4%5D=localgov_directories_facets%3A242"
   ],
   "html_fragments": [],
   "url_patterns": [
    {
     "pattern": "/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order",
     "count": 25
    }
   ],
   "associated_technologies": [],
   "impact": {
    "groups": [],
    "summary": "Not captured by automated scan — requires manual testing."
   }
  },
  {
   "finding_id": "VS-646b1e0b",
   "fingerprint": "afad441e",
   "rule_id": "sia-r66",
   "rule_label": "Text has enhanced contrast",
   "engine": "alfa",
   "tool": "Siteimprove Alfa",
   "wcag_sc": "1.4.6",
   "wcag_name": "Contrast (Enhanced)",
   "wcag_level": "AAA",
   "wcag_version": "2.0",
   "wcag_category": "WCAG 2.x AAA",
   "rule_url": "https://alfa.siteimprove.com/rules/sia-r66",
   "severity": "Moderate",
   "priority": "p3",
   "confidence": "low",
   "rationale": "Moderate severity on 1 pages",
   "trend": {
    "status": "improving",
    "first_observed": "2026-W44",
    "last_observed": "2026-W45",
    "weeks_observed": 2,
    "affected_pages_current": 1,
    "affected_pages_previous": 287
   },
   "frequency": {
    "instances": 6,
    "pages_affected": 1,
    "total_pages_scanned": 1000
   },
   "on_key_page": false,
   "summary": "Text has enhanced contrast (WCAG 1.4.6)",
   "description": "Text has enhanced contrast. Detected by Siteimprove Alfa rule sia-r66 on 1 of 1000 scanned pages (6 instances).",
   "remediation_tip": "Increase text contrast to meet WCAG AAA (7:1).",
   "suggested_fix": "See remediation guidance: https://alfa.siteimprove.com/rules/sia-r66",
   "expected_behavior": "Element passes Siteimprove Alfa rule sia-r66 (WCAG 1.4.6).",
   "actual_behavior": "Text has enhanced contrast. Detected by Siteimprove Alfa rule sia-r66 on 1 of 1000 scanned pages (6 instances).",
   "testing_environment": "Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.",
   "representative_urls": [
    "https://www.luton.gov.uk/parking-streets-transport/road-street-maintenance-improvements/report-issue-road-street-or-your-environment"
   ],
   "html_fragments": [],
   "url_patterns": [
    {
     "pattern": "/parking-streets-transport/road-street-maintenance-improvements/report-issue-road-street-or-your-environment",
     "count": 1
    }
   ],
   "associated_technologies": [],
   "impact": {
    "groups": [],
    "summary": "Not captured by automated scan — requires manual testing."
   }
  }
 ],
 "clusters": {
  "by_wcag_criterion": [
   {
    "cluster_id": "0649d9b9",
    "type": "wcag_criterion",
    "wcag_sc": null,
    "wcag_name": null,
    "wcag_level": null,
    "findings": [
     "VS-f18df681"
    ],
    "total_pages_affected": 980,
    "max_severity": "Serious"
   },
   {
    "cluster_id": "7154a92e",
    "type": "wcag_criterion",
    "wcag_sc": "2.1.1",
    "wcag_name": "Keyboard",
    "wcag_level": "A",
    "findings": [
     "VS-58346bcf"
    ],
    "total_pages_affected": 485,
    "max_severity": "Moderate"
   },
   {
    "cluster_id": "140fec0b",
    "type": "wcag_criterion",
    "wcag_sc": "1.4.8",
    "wcag_name": "Visual Presentation",
    "wcag_level": "AAA",
    "findings": [
     "VS-2208081b"
    ],
    "total_pages_affected": 485,
    "max_severity": "Moderate"
   },
   {
    "cluster_id": "b393058c",
    "type": "wcag_criterion",
    "wcag_sc": "2.5.5",
    "wcag_name": "Target Size (Enhanced)",
    "wcag_level": "AAA",
    "findings": [
     "VS-cb53cc4d"
    ],
    "total_pages_affected": 485,
    "max_severity": "Moderate"
   },
   {
    "cluster_id": "75cf28e4",
    "type": "wcag_criterion",
    "wcag_sc": null,
    "wcag_name": null,
    "wcag_level": null,
    "findings": [
     "VS-7118fead"
    ],
    "total_pages_affected": 485,
    "max_severity": "Moderate"
   },
   {
    "cluster_id": "36ac08de",
    "type": "wcag_criterion",
    "wcag_sc": null,
    "wcag_name": null,
    "wcag_level": null,
    "findings": [
     "VS-c18be945"
    ],
    "total_pages_affected": 485,
    "max_severity": "Moderate"
   },
   {
    "cluster_id": "0ba1e7fd",
    "type": "wcag_criterion",
    "wcag_sc": null,
    "wcag_name": null,
    "wcag_level": null,
    "findings": [
     "VS-aa242c2d"
    ],
    "total_pages_affected": 485,
    "max_severity": "Moderate"
   },
   {
    "cluster_id": "71f257a8",
    "type": "wcag_criterion",
    "wcag_sc": "1.4.6",
    "wcag_name": "Contrast (Enhanced)",
    "wcag_level": "AAA",
    "findings": [
     "VS-646b1e0b"
    ],
    "total_pages_affected": 1,
    "max_severity": "Moderate"
   }
  ],
  "by_url_pattern": []
 },
 "technology_findings": [],
 "third_party_findings": [
  {
   "origin": "facebook.net",
   "pages_served": 245,
   "pages_with_findings": 245,
   "finding_co_occurrence_rate": 1,
   "median_bytes": 637438,
   "example_pages": [
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A127&f%5B1%5D=localgov_directories_facets%3A148&f%5B2%5D=localgov_directories_facets%3A223&f%5B3%5D=localgov_directories_facets%3A252&f%5B4%5D=localgov_directories_facets%3A261&f%5B5%5D=localgov_directories_facets%3A277",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A109&f%5B1%5D=localgov_directories_facets%3A115&f%5B2%5D=localgov_directories_facets%3A165&f%5B3%5D=localgov_directories_facets%3A166&f%5B4%5D=localgov_directories_facets%3A167&f%5B5%5D=localgov_directories_facets%3A191&f%5B6%5D=localgov_directories_facets%3A204&f%5B7%5D=localgov_directories_facets%3A209&f%5B8%5D=localgov_directories_facets%3A237",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A200&f%5B1%5D=localgov_directories_facets%3A245"
   ]
  },
  {
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   "pages_served": 245,
   "pages_with_findings": 245,
   "finding_co_occurrence_rate": 1,
   "median_bytes": 512086,
   "example_pages": [
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A127&f%5B1%5D=localgov_directories_facets%3A148&f%5B2%5D=localgov_directories_facets%3A223&f%5B3%5D=localgov_directories_facets%3A252&f%5B4%5D=localgov_directories_facets%3A261&f%5B5%5D=localgov_directories_facets%3A277",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A109&f%5B1%5D=localgov_directories_facets%3A115&f%5B2%5D=localgov_directories_facets%3A165&f%5B3%5D=localgov_directories_facets%3A166&f%5B4%5D=localgov_directories_facets%3A167&f%5B5%5D=localgov_directories_facets%3A191&f%5B6%5D=localgov_directories_facets%3A204&f%5B7%5D=localgov_directories_facets%3A209&f%5B8%5D=localgov_directories_facets%3A237",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A200&f%5B1%5D=localgov_directories_facets%3A245"
   ]
  },
  {
   "origin": "cookiebot.com",
   "pages_served": 245,
   "pages_with_findings": 245,
   "finding_co_occurrence_rate": 1,
   "median_bytes": 200290,
   "example_pages": [
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A127&f%5B1%5D=localgov_directories_facets%3A148&f%5B2%5D=localgov_directories_facets%3A223&f%5B3%5D=localgov_directories_facets%3A252&f%5B4%5D=localgov_directories_facets%3A261&f%5B5%5D=localgov_directories_facets%3A277",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A109&f%5B1%5D=localgov_directories_facets%3A115&f%5B2%5D=localgov_directories_facets%3A165&f%5B3%5D=localgov_directories_facets%3A166&f%5B4%5D=localgov_directories_facets%3A167&f%5B5%5D=localgov_directories_facets%3A191&f%5B6%5D=localgov_directories_facets%3A204&f%5B7%5D=localgov_directories_facets%3A209&f%5B8%5D=localgov_directories_facets%3A237",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A200&f%5B1%5D=localgov_directories_facets%3A245"
   ]
  },
  {
   "origin": "blackfire.io",
   "pages_served": 245,
   "pages_with_findings": 245,
   "finding_co_occurrence_rate": 1,
   "median_bytes": 90568,
   "example_pages": [
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A127&f%5B1%5D=localgov_directories_facets%3A148&f%5B2%5D=localgov_directories_facets%3A223&f%5B3%5D=localgov_directories_facets%3A252&f%5B4%5D=localgov_directories_facets%3A261&f%5B5%5D=localgov_directories_facets%3A277",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A109&f%5B1%5D=localgov_directories_facets%3A115&f%5B2%5D=localgov_directories_facets%3A165&f%5B3%5D=localgov_directories_facets%3A166&f%5B4%5D=localgov_directories_facets%3A167&f%5B5%5D=localgov_directories_facets%3A191&f%5B6%5D=localgov_directories_facets%3A204&f%5B7%5D=localgov_directories_facets%3A209&f%5B8%5D=localgov_directories_facets%3A237",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A200&f%5B1%5D=localgov_directories_facets%3A245"
   ]
  },
  {
   "origin": "clarity.ms",
   "pages_served": 245,
   "pages_with_findings": 245,
   "finding_co_occurrence_rate": 1,
   "median_bytes": 75023,
   "example_pages": [
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A127&f%5B1%5D=localgov_directories_facets%3A148&f%5B2%5D=localgov_directories_facets%3A223&f%5B3%5D=localgov_directories_facets%3A252&f%5B4%5D=localgov_directories_facets%3A261&f%5B5%5D=localgov_directories_facets%3A277",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A109&f%5B1%5D=localgov_directories_facets%3A115&f%5B2%5D=localgov_directories_facets%3A165&f%5B3%5D=localgov_directories_facets%3A166&f%5B4%5D=localgov_directories_facets%3A167&f%5B5%5D=localgov_directories_facets%3A191&f%5B6%5D=localgov_directories_facets%3A204&f%5B7%5D=localgov_directories_facets%3A209&f%5B8%5D=localgov_directories_facets%3A237",
    "https://www.luton.gov.uk/planning-building-control/planning/conservation-design-natural-environment/find-tree-preservation-order?f%5B0%5D=localgov_directories_facets%3A200&f%5B1%5D=localgov_directories_facets%3A245"
   ]
  }
 ],
 "metadata": {
  "generator": "vital-core",
  "schema_version": "0.1",
  "total_pages_scanned": 1000,
  "notes": [
   "Healthy pages (no known issues) are intentionally excluded.",
   "Representative examples are used instead of complete occurrence lists.",
   "Fingerprints are stable hashes for tracking recurring patterns over time.",
   "Fragment fingerprints normalize volatile attributes (id, style, data-*) before hashing.",
   "Technology lift values indicate association, not causation.",
   "Confidence reflects sample size: high=10+ affected pages, medium=3-9, low=1-2."
  ]
 }
}