Canonical Tag Checker
Inspect the canonical tags of any URL and detect conflicts, chains and self-references.
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About this tool
Fetch any URL and see every canonical signal: the <link rel="canonical"> tag, og:url, and whether the canonical is self-referencing, points elsewhere, is missing, or is duplicated with conflicting values — each condition explained with a recommended fix.
How to use the Canonical Tag Checker
- Enter the URL to inspect.
- Review the detected canonical(s) and status verdict.
- Fix conflicts so every page has exactly one correct canonical.
Frequently asked questions
Should every page have a canonical tag?
Yes — a self-referencing canonical on unique pages prevents parameter and duplicate issues.
Is canonical a directive?
No, it is a strong hint. Google can choose a different canonical if signals conflict.