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Free Canonical Tag Checker

Instantly check the rel=”canonical” tag for any URL. Eliminate duplicate content risks and strengthen SEO with the Canonical Tag Checker – your effortless tool to audit and validate rel=canonical tags across your website. Instantly detect missing, incorrect, or conflicting tags that confuse search engines, waste crawl budget, or trigger ranking penalties. Designed for SEO teams and website managers, this tool streamlines technical audits by highlighting issues that undermine content authority. Ensure Google prioritizes the right pages, preserves link equity, and indexes your site accurately. Perfect your canonicalization strategy in seconds – fix errors faster and safeguard your SEO performance.

Check a Page’s Canonical Tag

Enter a URL below to fetch its HTML and extract the content of the tag found in the page’s head section.

Checking URL…

Why Checking Canonical Tags Matters for SEO

A canonical tag (``) is an HTML element that helps webmasters prevent duplicate content issues. It tells search engines which version of a URL is the “master” or preferred version. This is important because:

  • It helps consolidate ranking signals (like backlinks) to a single URL, boosting its authority.
  • It prevents search engines from wasting crawl budget on duplicate pages.
  • It ensures users are directed to the preferred version of a page in search results.
  • Incorrect canonical tags can cause indexing issues, diverting authority from your intended pages.

Use this tool to quickly verify the canonical tag on any page and ensure it’s pointing to the correct, preferred version of the content.

How to Use This Tool

  1. Enter the full URL (starting with http:// or https://) that you want to check into the input field.
  2. Click the “Check Canonical” button.
  3. The tool will make a request to the URL from our server, follow redirects, and extract the tag from the HTML.
  4. The results area will display information about the requested URL, the final URL after redirects, the HTTP status code, and the status of the canonical tag (Found, Missing, Invalid URL, or Error) along with the extracted canonical URL if found.

Ensure the canonical tag is present, valid, and points to the self-referencing (preferred) version of the page unless you specifically intend otherwise.