vital-scans open quality ledger

www.medicare.gov: Web standards & metadata — week 2026-W32

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%3/996
Open social presence (Mastodon/Bluesky) linked0%0/996
Meta description present56%559/996
Canonical URL declared87%863/996
hreflang alternates declared87%863/996
Open Graph tags (0/6)87%863/996
Twitter card metadata87%863/996
Page has a <title>99%984/996
Character encoding declared100%996/996
Document language (lang) set100%996/996
Responsive viewport (zoom not disabled)100%996/996

across 996 page(s)

No Mastodon/Bluesky links detected on checked pages.

Progressive Web Resilience across 996 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 ✗ 0/996 pages A service worker is what makes offline access, caching, and background sync possible. —
Manifest declares a maskable icon ✗ 0/996 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) ✗ 0/996 pages An active service worker (not just registered) is what actually intercepts requests and serves cached content. —
Service worker controls this page load ✗ 0/996 pages A controlling service worker means THIS page load is being served/intercepted, not just a future one. —
Meets basic installability criteria ✗ 0/996 pages Determines whether the browser can realistically offer "Add to Home Screen" / install, based on manifest + service worker + HTTPS together. no 192x192 or larger icon declared; no service worker registered
Web app manifest declared ~ 133/996 pages A web app manifest is required for installability and controls how the app appears when launched. —
Theme color declared ~ 133/996 pages Theme color controls the browser chrome/status-bar color when the site is installed or bookmarked. #000000
Manifest fetched and parsed successfully ~ 133/996 pages A manifest that fails to parse cannot drive installability or launch behavior even if the link is present. display=standalone, start_url=.
Apple touch icon (iOS/bookmark icon) ~ 986/996 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) ✓ 996/996 pages HTTPS is required for service workers and most install prompts. —