Canonical changed: the page now points to another URL

In brief

The page's canonical tag now names a different URL: if it is intentional (migration, consolidation) all is well, otherwise you are telling Google to index another page instead and the current one can drop from the index. Confirm the new target is intended, otherwise restore the self-reference.

WarningP0 — Deindexing

What is it?

The canonical points to a different URL than the one observed on the previous crawl.

Why it hurts SEO and AI

If the change is intentional (migration, consolidation), all is well. If accidental, you are telling Google to index ANOTHER page instead of this one: the current page can be deindexed in favor of the target.

When it is NOT a problem

  • Intentional migration or consolidation: the new canonical target is the page you want indexed.
  • A paginated page or variant (filter, sort) that should legitimately point to its main version.
  • First crawl: with no previous baseline, Seogard does not flag a change.
Before
<!-- on page /product-a -->
<link rel="canonical" href="https://site.com/product-b" />
After
<!-- on page /product-a -->
<link rel="canonical" href="https://site.com/product-a" />

If /product-a should be indexed, its canonical must reference itself; pointing to /product-b gets it deindexed in favor of the other page.

How to fix it

  1. Open the page source and find the <link rel="canonical"> tag and its new target.
  2. Decide whether that target is intended: a planned migration or consolidation, or an accidental change.
  3. If accidental, restore the self-reference (canonical = the page's own URL) in the SEO template.
  4. Re-crawl to confirm the canonical points to the right URL.

This scan checks the HTTP status, noindex and canonical of every page

Is this issue on your site?

Do your canonicals point where you think? Enter a URL: Seogard reads the canonical tag on every page and alerts you the moment it changes target, before Google deindexes the wrong one. Free, no credit card.

By clicking Scan, I certify that I own this site or have permission to crawl it.

  • No credit card
  • Result in ~30 s

What you get back

No silent deindexing: every indexable page keeps its signal.

Seogard catches this regression automatically — through its monitoring for your metas and canonicals.

Frequently asked questions

Does a canonical to another page really deindex the page?

Yes: the canonical is a strong instruction to Google, which consolidates signals toward the target and often removes the original page from the index.

How do I know if the canonical change was intentional?

Check whether it lines up with a planned migration or redesign. If nobody decided to redirect indexing to another URL, it is accidental.

Related rules

Noindex addedA noindex directive was added (robots/googlebot meta tag or X-Robots-Tag HTTP header). The page will disappear from Google results within days. HTTP status code changedThe HTTP status code changed (e.g. 200 to 404 or 301). Critical for server errors (4xx/5xx), warning for redirects (3xx). Canonical missingThe canonical tag is gone. Duplicate content risk — Google no longer knows which URL to index.

Updated July 10, 2026