www.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
hreflang alternates declared
0%
0/529
Open social presence (Mastodon/Bluesky) linked
0%
0/529
schema.org GovernmentOrganization markup
3%
17/529
Open Graph tags (0/6)
3%
16/529
Twitter card metadata
3%
16/529
Canonical URL declared
50%
267/529
Meta description present
65%
342/529
Character encoding declared
89%
469/529
Document language (lang) set
89%
469/529
Responsive viewport (zoom not disabled)
89%
469/529
Page has a <title>
100%
529/529
over 529 pagina('s)
Geen Mastodon-/Bluesky-links gedetecteerd op de gecontroleerde pagina's.
Progressive Web Resilience over 529 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
✗ 0/529 pages
A web app manifest is required for installability and controls how the app appears when launched.
—
Service worker registered
✗ 0/529 pages
A service worker is what makes offline access, caching, and background sync possible.
—
Theme color declared
✗ 0/529 pages
Theme color controls the browser chrome/status-bar color when the site is installed or bookmarked.
—
Manifest fetched and parsed successfully
✗ 0/529 pages
A manifest that fails to parse cannot drive installability or launch behavior even if the link is present.