Free Canonical Tag Checker
Check canonical tags, detect duplicate content issues, and generate proper canonical tags for any URL — completely free, no sign-up required.
Generator
Canonical Tag Generator
Enter a URL below to generate the correct canonical tag HTML code. Copy and paste it into your page's <head> section.
Features
Free Canonical Checker & Tag Generator
Detect canonical tag issues, validate self-referencing canonicals, find conflicts between HTML and HTTP headers, and generate proper canonical tags — all in one free tool.
Canonical Tag Detection
Instantly detect canonical tags in HTML source and HTTP headers for any URL. Identify missing, misconfigured, or conflicting canonical implementations.
Self-Reference Validation
Verify whether the canonical tag correctly points back to the page itself, following SEO best practices for self-referencing canonicals.
Conflict Detection
Detect conflicts between HTML canonical tags and HTTP Link headers, as well as multiple canonical tags that confuse search engines.
HTTP Header Analysis
Check for canonical declarations in HTTP response headers (Link: rel="canonical"), which some CMS and CDN platforms use alongside HTML tags.
Canonical Tag Generator
Generate the correct HTML canonical tag for any URL. Copy the ready-to-use code snippet directly into your page head section.
Free & No Sign-up
Check canonical tags and generate code completely free with no hidden fees, no registration, and no subscription requirements.
FAQ
Frequently Asked Questions
Everything you need to know about canonical tags and duplicate content.
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