Free Canonical URL Checker
Check the canonical tag of any page in seconds. See whether it points to itself, conflicts with other signals or sends Google to a broken or redirecting URL.
Canonical URL Checker: Check the canonical tag of any page in seconds. See whether it points to itself, conflicts with other signals or sends Google to a broken or redirecting URL. It is free, needs no sign-up and runs in your browser. How to use it: 1) enter the page address; 2) review the canonical tags and headers found; 3) fix any red items and use the recommended tag if needed. A canonical tag tells search engines which URL is the main version of a page. Our server loads your page, follows any redirects, then reads every rel=canonical link tag and the HTTP Link header.
How the canonical checker works
A canonical tag tells search engines which URL is the main version of a page. Our server loads your page, follows any redirects, then reads every rel=canonical link tag and the HTTP Link header. It resolves relative URLs, then requests the canonical target without following redirects to see its real status code.
What we check
- Whether a canonical exists at all.
- Multiple canonicals, especially ones that disagree.
- Relative versus absolute URLs.
- Canonical tags placed in the body, which Google ignores.
- Self-referencing, cross-domain, www and https mismatches.
- Noindex combined with a canonical, which sends mixed signals.
- A canonical target that redirects, errors or is itself noindex.
- Whether og:url matches the canonical.
When a canonical should point elsewhere
Filtered category pages, printer versions, tracking URLs and syndicated copies should point to the main version. Normal pages that you want to rank should point to themselves.
Limitations
A canonical is a hint, not a command. Google may choose a different canonical based on internal links, sitemaps and content similarity. Canonicals added by JavaScript are not read. To see which URL Google actually chose, use the URL Inspection tool in Google Search Console.
About this tool
The Canonical URL Checker is built and maintained by the Hayyat Networks team, a digital marketing, SEO and web development agency working with businesses in New York and Lahore since 2016. It is part of our free SEO Tools collection.
- Last reviewed
- CostFree, no sign-up
- Where it runsChecked on our server
- Checking resultsThe method and a worked example are shown above, so you can verify every result.
- PrivacyOnline checks only read public web pages and data. We do not sell anything you enter.
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Link to this tool
Free to share in your blog, course notes or resource list. Copy the link below:
<a href="https://hayyatnetworks.com/free-tools/seo-tools/canonical-url-checker/">Canonical URL Checker</a> by Hayyat NetworksCanonical URL Checker FAQs
What is a canonical tag?
It is a link element in the page head, written as rel=canonical, that names the preferred URL for a piece of content. It helps search engines merge duplicate or similar URLs, such as versions with tracking parameters, so ranking signals go to one address.
Should every page have a self-referencing canonical?
Yes, it is a good default. A self-referencing canonical protects the page when people link to it with extra parameters or when scrapers copy it. SEO plugins such as Yoast and Rank Math add one automatically to every page. This tool shows you whether it is in place.
What happens if a page has two canonical tags?
If they point to different URLs, Google usually ignores both and picks a canonical on its own. This often happens when a theme and an SEO plugin both add the tag. Keep exactly one canonical per page. Our checker flags this conflict as a fix.
Can I use noindex and canonical together?
It is best not to. Noindex says do not show this page, while a canonical says treat this page as a copy of another. Google has warned that mixing them can cause the wrong page to drop out. Use one signal that matches your intent.
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