vital-scans open quality ledger

www.luton.gov.uk: Web standards & metadata — week 2026-W45

Web standards & metadata

Web-standards, metadata, and security checks in the spirit of ScanGov (methodology CC0), run across our scan rather than only the homepage.

Share of checked pages passing each standard (lowest first).
StandardPass ratePages
schema.org GovernmentOrganization markup0%0/509
hreflang alternates declared0%0/509
Open Graph tags (0/6)0%0/509
Twitter card metadata0%0/509
Open social presence (Mastodon/Bluesky) linked0%0/509
Canonical URL declared100%509/509
Page has a <title>100%509/509
Meta description present100%509/509
Character encoding declared100%509/509
Document language (lang) set100%509/509
Responsive viewport (zoom not disabled)100%509/509

across 509 page(s)

No Mastodon/Bluesky links detected on checked pages.

Progressive Web Resilience across 509 page(s)

Capabilities that keep the site useful under real-world conditions — unreliable connectivity, interrupted sessions, mobile install. Not a compliance score: each row is independent evidence.

Progressive Web Resilience signals (lowest pass rate first).
CapabilityResultWhy it mattersEvidence
Service worker registered ✗ 0/509 pages A service worker is what makes offline access, caching, and background sync possible. —
Manifest fetched and parsed successfully ✗ 0/509 pages A manifest that fails to parse cannot drive installability or launch behavior even if the link is present. HTTP 404
Manifest declares a maskable icon ✗ 0/509 pages A maskable icon lets the OS safely crop/mask the app icon on different device shapes without clipping content. No icon with purpose "maskable"
Service worker is active (not just registered) ✗ 0/509 pages An active service worker (not just registered) is what actually intercepts requests and serves cached content. —
Service worker controls this page load ✗ 0/509 pages A controlling service worker means THIS page load is being served/intercepted, not just a future one. —
Meets basic installability criteria ✗ 0/509 pages Determines whether the browser can realistically offer "Add to Home Screen" / install, based on manifest + service worker + HTTPS together. no readable web app manifest; no service worker registered
HTTPS (required for service workers) ✓ 509/509 pages HTTPS is required for service workers and most install prompts. —
Web app manifest declared ✓ 509/509 pages A web app manifest is required for installability and controls how the app appears when launched. —
Theme color declared ✓ 509/509 pages Theme color controls the browser chrome/status-bar color when the site is installed or bookmarked. #ffffff
Apple touch icon (iOS/bookmark icon) ✓ 509/509 pages iOS uses this icon for home-screen bookmarks and "Add to Home Screen" — without it the icon falls back to a screenshot. —