Static on-page audit
On-page signals from static HTML only; site size is the sitemap-declared count, not Google's index.
Indexability
Indexablethis page allows itself into the index
On-page signals from static HTML only; site size is the sitemap-declared count, not Google's index.
Meta
TitlePrimer6 charsshort
DescriptionThe Design System for GitHub28 charsshort
Canonical—
Languageen
Viewportwidth=device-width, initial-scale=1mobile meta
Charsetutf-8
Headings
H11
H25
H1 textPrimer
Structured data
No JSON-LD Schema.org markup found — no rich-result eligibility.
Links
Total14
Internal11
External3
Nofollow0
External domainsbrand.github.comgithub.blog
Social
Open Graph—
Twitter Card—
robots.txt & sitemap
robots.txtpresent
Declared sitemaps1
Sitemap URLs303declared in sitemap, not Google's index
lastmod range2026-09-04T18:14:04.543Z → 2026-09-04T18:14:04.566Z
Tech
HTML size211.3 KB
Compression—uncompressed
Response time932 ms
HTTP/2·3 and TLS protocol facts live on the SSL tab.
Authority (external)
Domain Rating / traffic / backlinks are proprietary — we don't invent numbers. These open the third-party service in your browser.
Google indexOpens a Google site: search in your browser — an honest count of pages Google has indexed.external ↗Bing indexOpens a Bing site: search in your browser — pages indexed by Bing.external ↗SimilarWebExternal service — public traffic & ranking profile (estimates).external ↗AhrefsExternal service — paste the domain into its free authority/backlink checker (no stable per-domain URL to pre-fill).external ↗SemrushExternal service — enter the domain for its traffic & backlink overview (login/limits may apply).
host: styleguide.github.comcollected 2 d ago · stale, refreshing…↻ Refresh