Canonical Tag Test
Verify presence of canonical link tags.
About the Canonical Tag Test
The Canonical Tag Checker verifies proper canonical URL implementation on any page. It detects missing canonicals, conflicting signals, canonicals pointing at redirects or errors, and self-reference problems.
Canonical tags tell search engines which URL represents a page when duplicates exist — www vs non-www, trailing slashes, parameters, paginated variants. Wrong canonicals split authority and can deindex the wrong version.
Enter any URL to check. Pair it with the URL Canonicalization Test for redirect-level verification. Sign in to run checks.
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