www.cms.gov: Web standards & metadata — week 2026-W40
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).
Standard
Pass rate
Pages
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
across 529 page(s)
No Mastodon/Bluesky links detected on checked pages.
Progressive Web Resilience across 529 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).
Capability
Result
Why it matters
Evidence
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.