SEO check

Inspect one public page for basic technical SEO findings. Returns the observed metadata and specific findings without a ranking score. Calls need no upstream API key and retain no history.

Call

With Crab signed in to Cloud, replace owner/seo with an accessible running deployment:

crab call owner/seo check '{"url":"https://example.com"}'

Returns the final URL, title, description, canonical URL, HTML language, h1 headings, image counts, robots directives and findings. You can also call it through CrabTalk MCP.

Checks missing or multiple titles, missing descriptions, missing/invalid/multiple canonical links, missing language, missing or multiple h1 headings, images without alt attributes, and noindex directives. Informational findings identify things to review; an absent canonical or multiple h1 headings are not automatically errors. Empty alt attributes remain valid for decorative images.

Limits

Inspects the returned UTF-8 HTML and X-Robots-Tag headers. It does not render JavaScript, crawl the site, fetch robots.txt, check rankings or verify that Google indexed the page. Robots directives are reported as observed; crawler-specific policies still need interpretation.

Accepts at most 12,000 DOM nodes, 12,000 start tags, 12,000 total attributes, depth 128 and 128 attributes per element. Fetches at most 512 KiB of HTML with up to three redirects and a ten-second timeout per request. Unsupported content types and unsuccessful HTTP responses fail explicitly. Reports include at most twenty h1 texts beside the total count; metadata reports over 256 KiB fail explicitly.

Source deployment · Rust API · Google metadata documentation