Canonical signals that point in different directions

Checks

• Preferred address differs from sitemap address canonical_differs_from_sitemap_url
• Most internal links point to another address most_internal_links_point_elsewhere
• Preferred address redirects back to the page canonical_target_redirects_back
• Language link points to a non-preferred address hreflang_points_to_non_canonical
• Two pages name each other as preferred two_urls_claim_each_other

Findings

• The canonical tag disagrees with the sitemap, the internal links, a redirect or hreflang

What this relies on

One URL should win, and it is the one most signals already point to.

How to verify by hand

Search Console 'Google chose a different canonical than the user' for the same URL.