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Free Canonical Tag Checker & Generator

Check the canonical tag on any public page and review the preferred URL being declared. You can also generate a clean self-referencing canonical tag when one is needed.

How this free tool helps

Canonical tags help search engines understand the preferred URL among duplicate or similar pages. This checker reports the observable canonical declaration without deciding whether a different URL should be canonical for your business.

Use the result as part of a wider SEO review

SEO decisions are strongest when technical checks are reviewed together with page quality, search intent and site structure. Use the result here as evidence for the specific task, then verify important changes on the live website.

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Frequently Asked Questions

What is a canonical tag?

A rel=canonical link identifies the URL you prefer search engines to treat as the representative version among duplicate or very similar URLs. It is a hint rather than an absolute command.

Should a normal indexable page have a self-referencing canonical?

A self-referencing canonical is commonly used to make the preferred URL explicit and keep canonicalization consistent across templates. It should point to the actual preferred public URL.

Can a wrong canonical remove the wrong page from search?

A conflicting canonical can encourage search engines to consolidate signals toward another URL. Review canonicals carefully, especially on product variants, filters, pagination and copied templates.