Skip to main content
SEO

Free Canonical Checker

Verify whether this page's preferred URL is valid, accessible, indexable, and consistent with its redirects, sitemap, and internal links.

Focus: Canonical
Free · No signup
Public http:// or https:// pages — the exact page you enter.
⏱ Usually takes 15–30 seconds
By submitting a URL, you confirm that you will use this service only for lawful purposes and will not use it to abuse, disrupt, or gain unauthorized access to websites or systems. Terms of use
📄 Exact page ⏱ 15–30s 🔒 Public URLs only
Guide

What is Canonical?

A canonical checker validates every canonical declaration and compares its destination with the page URL, redirects, robots signals, sitemap entries, and same-site links.

Why it matters

Without a correct canonical, search engines may split ranking signals across multiple versions of the same content.

Common problems

  • Conflicting or empty canonical tags
  • Canonical destination returns an error or redirects
  • Canonical conflicts with robots, sitemap, or internal links

How to fix them

Keep one valid canonical pointing directly to the intended accessible URL, then align sitemap entries and internal links where practical.

Example

Example: www and non-www versions both exist but only one canonical is present → pick the preferred version and enforce it consistently.

FAQ

Does canonical solve duplicate content?

It helps point search engines to the preferred version, but it does not magically fix all duplicate-content issues.

Can a page have more than one canonical?

No. Use a single canonical URL per page.

Is it free?

Yes.

Keep going
Free SEO Checker Free Indexability Checker Free robots.txt Checker All tools
Full page check All tools Back to home