Canonical Checker

Canonical is the <link rel="canonical" href="..."> tag that specifies a page’s primary URL. It is used when the same content is available at multiple addresses, such as URLs with parameters, paginated pages, or different domains.

When the same content is available at different URLs (with or without parameters, www, or a trailing slash). Canonical indicates which version to treat as primary and index.

Yes, but be careful. A canonical pointing to another page tells Google to treat the current page as a copy. The content should be identical or very similar. Otherwise, it may be treated as a soft redirect, and the content won’t be indexed.

It’s usually best to use one method. If a page redirects to another page, a canonical is usually unnecessary—the redirect already indicates the preferred URL. Using both a canonical and a redirect can confuse crawlers.

Enter a page URL in Canonical Checker. The tool will show the canonical URL, check its format, and compare it with the current URL. You’ll see warnings if it finds any issues.