Canonical Tag Checker
Checks canonical tag in HTML and HTTP headers, plus common SEO issues.
About This Tool
The Canonical Tag Checker Tool helps you verify the canonical URL of any webpage. A canonical tag tells search engines which version of a page should be treated as the original when duplicate or similar content exists.
With this tool, you can:
Detect the canonical URL of a page
Identify missing canonical tags
Verify correct canonical implementation
Check for self-referencing canonical
Detect incorrect cross-domain canonical issues
This tool is essential for:
SEO professionals
Website owners
WordPress users
Developers
eCommerce businesses
Digital agencies
Proper canonical setup prevents duplicate content problems and protects your SEO rankings.
⚙️ How To Use
Enter the full webpage URL (including https://).
Click the Check Canonical Tag button.
The tool scans the page source.
Instantly view the canonical tag status.
No installation or login required.
Still Have Questions?
A canonical tag (rel="canonical") is an HTML element that tells search engines which URL is the preferred version of a page.
Search engines may treat similar pages as duplicate content, which can dilute rankings.
Yes. Even self-referencing canonical tags are recommended for clarity.
No. URLs are processed temporarily and not permanently stored.