www.cms.gov: Web standards & metadata — week 2026-W29
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%
0/3930
Open Graph tags (0/6)
0%
1/3930
Twitter card metadata
0%
1/3930
Open social presence (Mastodon/Bluesky) linked
0%
0/3930
Web app manifest declared
0%
0/2569
Service worker registered
0%
0/2569
Theme color declared
0%
1/2569
schema.org GovernmentOrganization markup
3%
125/3930
Meta description present
47%
1835/3930
Apple touch icon (iOS/bookmark icon)
64%
1633/2569
Canonical URL declared
67%
2647/3930
Character encoding declared
99%
3893/3930
Document language (lang) set
99%
3893/3930
Responsive viewport (zoom not disabled)
99%
3893/3930
Page has a <title>
100%
3930/3930
HTTPS (required for service workers)
100%
2569/2569
across 3930 page(s)
No Mastodon/Bluesky links detected on checked pages.
Progressive Web Resilience across 1361 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
✗ 0/1361 pages
A web app manifest is required for installability and controls how the app appears when launched.
—
Service worker registered
✗ 0/1361 pages
A service worker is what makes offline access, caching, and background sync possible.
—
Theme color declared
✗ 0/1361 pages
Theme color controls the browser chrome/status-bar color when the site is installed or bookmarked.
—
Manifest fetched and parsed successfully
✗ 0/1361 pages
A manifest that fails to parse cannot drive installability or launch behavior even if the link is present.