Canonical Tag Checker
Check the canonical tag of any page and spot problems.
How to Use the Canonical Tag Checker?
Check the canonical tag of any page and catch duplicate content problems early.
- 1
Enter the URL of the page you want to check.
- 2
Click the Check Canonical button.
- 3
See the Canonical URL next to the checked and final URLs.
- 4
Review the checks for missing, multiple, relative or conflicting canonical tags.
- 5
Fix any problems in your page template or SEO plugin.
Benefits of Using Our Canonical Tag Checker
Catch costly mistakes
A wrong canonical can quietly remove a page from search. This tool spots it in seconds.
Clear explanations
Each check explains what it found and why it matters.
Conflict detection
Find pages that send mixed signals, such as noindex together with a canonical.
Free forever
Check any public URL without signing up.
Who Can Use This Canonical Tag Checker?
SEO specialists
Audit canonical setup during site reviews.
E-commerce stores
Handle product variants and filter pages correctly.
Developers
Verify canonical logic after site migrations.
Bloggers
Make sure syndicated or updated posts point to the right URL.
Frequently Asked Questions
Everything you need to know about the Canonical Tag Checker.
What is a canonical tag?
A canonical tag, written as <link rel="canonical" href="...">, tells search engines which URL is the main version of a page. It helps when the same content is available at several URLs, for example with tracking parameters, filters or both www and non-www versions.
Should every page have a canonical tag?
It is a best practice for every indexable page to have a self referencing canonical tag that points to its own clean URL. This protects you from duplicate versions created by parameters or mistakes.
What happens if I have more than one canonical tag?
When a page has two or more different canonical tags, search engines may ignore all of them and choose a URL themselves. Make sure your theme and SEO plugins do not both add a canonical tag.
Is a canonical tag the same as a redirect?
No. A redirect sends visitors and search engines to another URL. A canonical tag is a hint for search engines only; visitors can still view the page. Use redirects for moved pages and canonicals for duplicate versions that need to stay accessible.
Related Tools
All SEO ToolsMeta Tag Generator
Generate title, description, Open Graph and Twitter meta tags.
Meta Description Generator
Write click worthy meta descriptions in the ideal length.
SERP Simulator
Preview how your page looks in Google search results.
Website SEO Score Checker
Audit any page and get an SEO score with clear fixes.