vital-scans open quality ledger

www.medicare.gov: Web standards & metadata — week 2026-W36

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%3/949
Open social presence (Mastodon/Bluesky) linked0%0/949
Meta description present55%523/949
Canonical URL declared87%822/949
hreflang alternates declared87%822/949
Open Graph tags (5/6)87%822/949
Twitter card metadata87%822/949
Page has a <title>99%944/949
Character encoding declared100%949/949
Document language (lang) set100%949/949
Responsive viewport (zoom not disabled)100%949/949

across 949 page(s)

No Mastodon/Bluesky links detected on checked pages.

Progressive Web Resilience across 949 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 ✗ 0/949 pages A service worker is what makes offline access, caching, and background sync possible. —
Manifest declares a maskable icon ✗ 0/949 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) ✗ 0/949 pages An active service worker (not just registered) is what actually intercepts requests and serves cached content. —
Service worker controls this page load ✗ 0/949 pages A controlling service worker means THIS page load is being served/intercepted, not just a future one. —
Meets basic installability criteria ✗ 0/949 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 ~ 127/949 pages A web app manifest is required for installability and controls how the app appears when launched. —
Theme color declared ~ 127/949 pages Theme color controls the browser chrome/status-bar color when the site is installed or bookmarked. #000000
Manifest fetched and parsed successfully ~ 127/949 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) ~ 937/949 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) ✓ 949/949 pages HTTPS is required for service workers and most install prompts. —