Developer Tools
Find clear answers to common questions about Canonical Tag Checker, including usage, output, and common issues.
Use this Canonical Tag Checker to fetch a page and inspect its rel=canonical tag. It helps confirm whether a page points to itself, another preferred URL, or has no canonical tag at all during technical SEO reviews.
Canonical Tag Checker is built for development, debugging, formatting, and quick technical checks directly in the browser.
It tells search engines which URL is the preferred version of a page.
Yes. The tool will show when no rel=canonical tag is found.
No. A canonical is a page signal, while a redirect sends users and bots to a different URL.
Not always. Parameter pages or duplicates often point to a cleaner preferred version.
It helps reduce duplicate-content confusion and supports clearer indexing signals.
Canonical Tag Checker is built for development, debugging, formatting, and quick technical checks directly in the browser.
Start by checking the input format, removing accidental spaces or unsupported characters, and comparing your input against the example pattern on the page.
Fix: Use the exact page URL you want to inspect, not just the homepage.
Fix: A canonical tag is only a page hint, while a redirect changes the destination URL.
Fix: Retry with the full URL and verify manually in source code if needed.
If you want to see realistic input and output patterns, open the examples page. If you want step-by-step usage guidance, open the guide page.
Open the main Canonical Tag Checker page to test your own input and generate a live result.