Canonical Tag Checker

Inspect the observed canonical link declarations.

Evidence, not a scoreLive HTML fetch · deterministic checks · no login · no paid AI tokens

Check a webpage

A canonical is a hint. Google may choose a different canonical URL.

What this check can tell you

The tool reports what it actually observes in fetched HTML. It does not verify JavaScript-rendered changes, indexing, Google rich-result eligibility, ranking impact, or social-platform previews.

Some findings are suggestions for human review, not SEO errors. A failed fetch is reported as a failed fetch — never as a missing tag.

Move from diagnosis to continuous improvements

Connect Search Console to prioritize pages with real traffic changes, then plan safe, reviewed improvements using RefreshAgent.

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