SEO Tools

Canonical URL Checker

Check which URL a page names as its canonical (preferred) version.

Not sure what to enter? Try an example: wordpress.org

Free & instant No signup How to use FAQ

Enter a URL to find its rel="canonical" tag and the address it points to.

What is a canonical URL?

A canonical tag (<link rel="canonical">) tells search engines which URL is the main version of a page when the same content is reachable at several addresses - with or without www, with tracking parameters, or with trailing slashes. It consolidates ranking signals on one URL.

How to check a canonical tag

Enter the page URL or domain in the box above.
Click Check Canonical.
Confirm a canonical tag exists and points to the preferred, indexable URL.
Make sure it uses https and the same host version (www or not) that the site redirects to.

Related checks

To check whether the page can be indexed, use the Indexability Checker.
For language variants, use the Hreflang Checker.

Every indexable page should point its canonical tag at itself, with the same https and www version you use everywhere else. JustChecker alerts you if canonicals start pointing somewhere unexpected after a site change.

Frequently Asked Questions

When the same content is reachable at several URLs - with tracking parameters, filters or http/https variants - the canonical tag tells search engines which one to index.

Yes, for normal pages a self-referencing canonical is recommended. It protects against duplicate URLs created by parameters.

Pointing every page to the homepage, pointing to http:// or a redirecting URL, and canonicals that conflict with hreflang or a noindex tag.

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