www.cms.gov: Web standards & metadata — week 2026-W33
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%
0/1733
Open Graph tags (0/6)
0%
2/1733
Twitter card metadata
0%
2/1733
Open social presence (Mastodon/Bluesky) linked
0%
0/1733
schema.org GovernmentOrganization markup
5%
79/1733
Canonical URL declared
44%
770/1733
Meta description present
72%
1254/1733
Character encoding declared
97%
1673/1733
Document language (lang) set
97%
1674/1733
Responsive viewport (zoom not disabled)
97%
1674/1733
Page has a <title>
100%
1733/1733
across 1733 page(s)
No Mastodon/Bluesky links detected on checked pages.
Progressive Web Resilience across 1733 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
✗ 1/1733 pages
A web app manifest is required for installability and controls how the app appears when launched.
—
Service worker registered
✗ 1/1733 pages
A service worker is what makes offline access, caching, and background sync possible.
—
Theme color declared
✗ 3/1733 pages
Theme color controls the browser chrome/status-bar color when the site is installed or bookmarked.