Canonical Tag Checker — Check Canonical URL Free Online
Check the canonical tag of any webpage instantly. Detect self-referencing canonicals, missing tags, and incorrect canonical URLs. Free, no sign-up.
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What is Canonical Tag Checker?
A canonical tag checker fetches a webpage and reads its canonical link element (<link rel='canonical' href='...'>) to verify the canonical URL is correct. The canonical tag tells search engines which URL is the preferred version of a page, preventing duplicate content issues. Our tool checks if the canonical is present, if it's self-referencing (best practice for the primary URL), or if it points to a different URL.
How to Use Canonical Tag Checker
- 1Enter the full URL of the page you want to check.
- 2Click Check Canonical to fetch the page.
- 3See the canonical URL found on the page.
- 4Check if it's self-referencing or pointing to another URL.
- 5Fix any missing or incorrect canonical tags to avoid duplicate content penalties.
Key Features
- Fetches live page canonical tag
- Detects self-referencing canonicals
- Flags missing canonical tags
- Shows canonical vs. final URL comparison
- Instant server-side check
Benefits
- Prevent duplicate content issues in Google Search
- Verify canonical tags after site migrations
- Ensure the correct page version is indexed
- Diagnose canonical tag implementation errors
Why Use Irreva for Canonical Tag Checker?
Prevent duplicate content issues in Google Search
Verify canonical tags after site migrations
Ensure the correct page version is indexed
Runs 100% in your browser — files never leave your device.
No account, no sign-up, no subscription — free forever.
Works on any device: desktop, tablet, or mobile.