Sitemapper

Warning

Canonical points at another host

The canonical href is on a different hostname than the sitemap URL.

Why it matters

Cross-host canonicals can donate indexing to another property. Sometimes that is intentional (www vs apex); often it is a staging leak.

Example

Production page canonicalizes to https://staging.example.com/pricing.

How Sitemapper detects it

Sitemapper resolves the canonical against the page URL and compares hostnames.

Verify it yourself

Check the canonical tag and any CMS canonical override / CDN host rewrite.

Practical fix

Point canonicals at the intended production host. Keep staging out of production sitemaps.

Official documentation

Run this check on a site