Can a Canonical URL point to a different domain?

A Canonical URL can point to a different domain when the pages represent the same content and the site owner controls both properties. Search engines assess the wider signals before accepting that choice.

Does a Canonical URL remove duplicate pages?

A Canonical URL does not remove duplicate pages. The duplicate addresses remain available to visitors unless separate actions, such as redirects or access controls, change their behaviour.

Why might Google choose a different canonical URL?

Google may choose a different canonical URL when page content, internal links, redirects, or accessibility signals support another address more strongly than the declared preference.

Glossary

What Is a Canonical URL?

A Canonical URL is the preferred web address for a page when similar or duplicate versions exist. The canonical declaration helps search engines understand which URL represents the main version for indexing and ranking signals. It does not redirect visitors, remove duplicate pages, or guarantee that search engines will select that URL.

Quick Facts About Canonical URL

Key Takeaways About Canonical URL

The tag signals preference, but does not create a redirect.
Canonical URLs help consolidate signals across similar page versions.
A canonical URL is not the same as a noindex directive.

How Canonical URL Works

A hand points at a printed sheet titled Canonical URL on a desk beside a calculator, pen, and laptop

A Canonical URL appears in a page's HTML through a link element that identifies the preferred address. Search engines compare that signal with page content, internal links, redirects, and other indexing signals before deciding which URL to show. The preferred address should normally represent the clearest, accessible version of the content.

Related glossary terms: Duplicate Content, Noindex Tag, Redirect Chain.

Canonicalisation is useful when tracking parameters, print views, sorting options, or similar page paths create multiple addresses for related content. A product page may point to its clean address while filtered versions point back to that page. Google Search Console can help compare the declared canonical with the URL selected by Google.

Hands write on a paper titled Canonical URL beside a laptop, notebook, coffee cup, and SEO note on a desk

Expert Note

When we review Canonical URL settings, we check the declared address against the page content, indexability, internal links, and alternate versions. Our team also checks whether important pages point to themselves where appropriate and whether canonical signals conflict with redirects or noindex directives.

Canonical URL in Practice: A Real-World Example

A Ballarat service website may have a clean plumbing page and another version created by a tracking parameter. The clean page can be declared as the Canonical URL so search engines can associate both addresses with the preferred page.