Canonical Checker
Paste any URL to see its canonical tag, whether it points back at the same page, and whether indexing signals agree. Catches duplicate addresses that split ranking signals across versions of a page.
Enter a URL to begin
Results appear here — nothing is stored.
What this check covers
- Canonical tag
- Self-referencing
- Final URL
- Page status
- Robots meta
- Indexable
How it works
01
Paste the page URL
Enter the exact page address, including any parameters or trailing slash.
02
Compare canonical and final URL
The checker shows both addresses side by side so mismatches stand out.
03
Point duplicates at one URL
Make every duplicate version reference the same preferred address, then re-run to verify.
Common questions
What is a canonical tag?
A tag that names the preferred URL for a page so duplicate addresses do not split ranking signals.
Is the canonical tag checker free?
Yes. Check any public page with no account and nothing to install.
What does self-referencing canonical mean?
The page names itself as the preferred URL, which is the correct setup for most pages.
How do duplicate urls hurt seo?
Search engines may split links and ranking signals across copies, or pick the wrong version to show.
Should every page have a canonical?
Yes, even pages without duplicates — it guards against parameter and trailing-slash variants.
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