Enter a URL
Use the exact URL, including any parameters.
Canonical tag checker
See which URL a page tells search engines to treat as the original, and whether that signal is clean.
Check a page's canonical tagTag, header and target
Confirm the page points to the right original.
Conflicting canonical signals can split ranking between duplicate URLs.
Review the signals
See every canonical found and where it points.
Fix conflicts
Resolve missing, duplicate, redirected or contradictory canonicals.
Keep one clear preferred URL.
Canonicals are a hint, so they work best when the rest of your signals agree.
Self-reference by default
Most indexable pages should point their canonical at themselves, with the full absolute URL.
Avoid chains and redirects
A canonical should point straight at a 200 page that is indexable and canonical to itself.
Do not mix signals
A noindex page with a canonical to another page, or conflicting header and HTML tags, confuses crawlers.
Keep going with the next tool
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