vital-scans open quality ledger

data.cms.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%0/1159
hreflang alternates declared0%0/1159
Open social presence (Mastodon/Bluesky) linked0%0/1159
Meta description present25%288/1159
Canonical URL declared30%352/1159
Open Graph tags (6/6)50%581/1159
Twitter card metadata50%581/1159
Page has a <title>100%1159/1159
Character encoding declared100%1159/1159
Document language (lang) set100%1159/1159
Responsive viewport (zoom not disabled)100%1159/1159

across 1159 page(s)

No Mastodon/Bluesky links detected on checked pages.

Progressive Web Resilience across 1159 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
Web app manifest declared ✗ 0/1159 pages A web app manifest is required for installability and controls how the app appears when launched. —
Service worker registered ✗ 0/1159 pages A service worker is what makes offline access, caching, and background sync possible. —
Apple touch icon (iOS/bookmark icon) ✗ 0/1159 pages iOS uses this icon for home-screen bookmarks and "Add to Home Screen" — without it the icon falls back to a screenshot. —
Manifest fetched and parsed successfully ✗ 0/1159 pages A manifest that fails to parse cannot drive installability or launch behavior even if the link is present. No manifest declared
Manifest declares a maskable icon ✗ 0/1159 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) ✗ 0/1159 pages An active service worker (not just registered) is what actually intercepts requests and serves cached content. —
Service worker controls this page load ✗ 0/1159 pages A controlling service worker means THIS page load is being served/intercepted, not just a future one. —
Meets basic installability criteria ✗ 0/1159 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
Theme color declared ~ 705/1159 pages Theme color controls the browser chrome/status-bar color when the site is installed or bookmarked. #000000
HTTPS (required for service workers) ✓ 1159/1159 pages HTTPS is required for service workers and most install prompts. —