SEO & web
Canonical Tag Checker
Inspect a page canonical URL, final destination and robots directive.
How to use this tool
Enter a public page URL to compare its declared canonical with the final URL after redirects and review its robots directive.
Related tool: Redirect Checker →When to use the Canonical Tag Checker
Use it to confirm which URL a page tells search engines is the original, especially after redirects, migrations or when the same content is reachable at several addresses.
Examples
- Check that https://example.com/page?ref=ad points its canonical at https://example.com/page.
- Confirm a page you want indexed is not also marked noindex.
Common mistakes
- Canonical tags pointing at a URL that redirects or returns 404.
- Every page canonicalised to the homepage, which hides the rest of the site.