data.cms.gov: Webstandaarden en metadata — week 2026-W40
Webstandaarden en metadata
Controles van webstandaarden, metadata en beveiliging in de geest van ScanGov (methodologie CC0), uitgevoerd over onze hele scan in plaats van alleen de homepage.
Aandeel gecontroleerde pagina's dat aan elke standaard voldoet (laagste eerst).
Standaard
Slaagpercentage
Pagina's
schema.org GovernmentOrganization markup
0%
0/913
hreflang alternates declared
0%
0/913
Open social presence (Mastodon/Bluesky) linked
0%
0/913
Meta description present
26%
233/913
Canonical URL declared
38%
344/913
Open Graph tags (5/6)
58%
527/913
Twitter card metadata
58%
527/913
Page has a <title>
100%
913/913
Character encoding declared
100%
913/913
Document language (lang) set
100%
913/913
Responsive viewport (zoom not disabled)
100%
913/913
over 913 pagina('s)
Geen Mastodon-/Bluesky-links gedetecteerd op de gecontroleerde pagina's.
Progressive Web Resilience over 913 pagina('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).
Capability
Resultaat
Why it matters
Bewijs
Web app manifest declared
✗ 0/913 pages
A web app manifest is required for installability and controls how the app appears when launched.
—
Service worker registered
✗ 0/913 pages
A service worker is what makes offline access, caching, and background sync possible.
—
Apple touch icon (iOS/bookmark icon)
✗ 0/913 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
✗ 0/913 pages
A manifest that fails to parse cannot drive installability or launch behavior even if the link is present.