Canonical Tag Checker
Check canonical tags for proper implementation. Detect canonical chains, conflicts, and self-referencing issues.
About Canonical Tag Checker
Check canonical tags for proper implementation. Detect canonical chains, conflicts, and self-referencing issues. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.
FAQ
What does this tool do?
Check canonical tags for proper implementation. Detect canonical chains, conflicts, and self-referencing issues.
Is my data sent to a server?
No. This tool runs 100% in your browser. Nothing is uploaded, tracked, or stored remotely.
What extra features does this tool have?
Extras: (1) (1) Canonical URL extraction, (2) (2) Self-referencing canonical detection, (3) (3) Canonical chain detection, (4) (4) Cross-domain canonical flag, (5) (5) HTTP vs HTTPS conflict, (6) (6) Multiple canonical tags flag, (7) (7) Bulk URL checking, (8) (8) robots.txt + canonical interaction, (9) (9) Copy canonical tag HTML, (10) (10) Generate correct canonical tag, (11) (11) Export report, (12) (12) PWA offline
Does this work offline?
Yes — install as a PWA and use it without network.
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