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Canonical URL Checker

Validate canonical tags to prevent duplicate content issues and ensure search engines index the correct version of your pages.

Check Canonical Tag

About Canonical Tags

The canonical tag (rel="canonical") tells search engines which version of a URL is the "master" copy, preventing duplicate content penalties.

Best Practices:
  • Use absolute URLs in canonical tags
  • Ensure canonical URL is accessible (200 status)
  • Don't chain canonicals
  • Use self-referencing canonicals

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