vital-scans open quality ledger

www.medicare.gov: Web standards & metadata — week 2026-W35

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%4/966
Open social presence (Mastodon/Bluesky) linked0%0/966
Meta description present56%539/966
Canonical URL declared85%821/966
hreflang alternates declared85%821/966
Open Graph tags (5/6)85%821/966
Twitter card metadata85%821/966
Page has a <title>99%957/966
Character encoding declared100%966/966
Document language (lang) set100%966/966
Responsive viewport (zoom not disabled)100%966/966

across 966 page(s)

No Mastodon/Bluesky links detected on checked pages.

Progressive Web Resilience across 966 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 ✗ 0/966 pages A service worker is what makes offline access, caching, and background sync possible. —
Manifest declares a maskable icon ✗ 0/966 pages A maskable icon lets the OS safely crop/mask the app icon on different device shapes without clipping content. No manifest declared
Service worker is active (not just registered) ✗ 0/966 pages An active service worker (not just registered) is what actually intercepts requests and serves cached content. —
Service worker controls this page load ✗ 0/966 pages A controlling service worker means THIS page load is being served/intercepted, not just a future one. —
Meets basic installability criteria ✗ 0/966 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
Web app manifest declared ~ 145/966 pages A web app manifest is required for installability and controls how the app appears when launched. —
Theme color declared ~ 145/966 pages Theme color controls the browser chrome/status-bar color when the site is installed or bookmarked. #000000
Manifest fetched and parsed successfully ~ 145/966 pages A manifest that fails to parse cannot drive installability or launch behavior even if the link is present. No manifest declared
Apple touch icon (iOS/bookmark icon) ~ 949/966 pages iOS uses this icon for home-screen bookmarks and "Add to Home Screen" — without it the icon falls back to a screenshot. —
HTTPS (required for service workers) ✓ 966/966 pages HTTPS is required for service workers and most install prompts. —