Canonical Tag Checker
Validate canonical tags across your pages. Detect missing canonicals, conflicts, and misconfigurations that cause duplicate content issues.
How It Works
Paste your URLs
Enter up to 20 URLs to check, one per line.
Analyze canonicals
We fetch each page and extract the canonical tag.
Review results
See the canonical URL, status, and any issues for each page.
Frequently Asked Questions
What is a canonical tag?
A canonical tag (rel=canonical) tells search engines which version of a page is the preferred one when multiple URLs have similar content.
Why are canonical tags important?
Without canonical tags, search engines may index duplicate pages, diluting your ranking signals across multiple URLs.
What is a self-referencing canonical?
A self-referencing canonical is when a page's canonical tag points to itself. This is the correct setup for most pages.
What causes canonical conflicts?
Conflicts arise when the canonical points to a page that has a different canonical, creating a chain. This confuses search engines about the preferred version.
Need help fixing canonical tag issues?
Our ecommerce SEO specialists can audit your entire site for canonical conflicts and duplicate content problems.
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