Issue Leaderboard

Canonical Issues Leaderboard

This leaderboard ranks audited websites by the number of pages with canonical tag problems — including missing canonicals, self-contradictory declarations, and canonicals pointing to incorrect URLs. Sites at the top have the most canonical issues detected.

Canonical issues occur when pages are missing, conflicting, or misdirecting the canonical tag used to declare the authoritative URL.

This leaderboard ranks audited sites by the number of canonical issues pages found in their latest public audit. Based on 749 audited sites with canonical issues detected.

What is Canonical Issues?

Canonical tags declare which URL is the authoritative version of a page when duplicates or near-duplicates exist. Missing, self-contradictory, or misdirected canonical tags cause search engines to index the wrong URL, split link equity across duplicate versions, or trigger unexpected deindexation during algorithm updates. This is one of the most common causes of ranking loss after site migrations.

Why it matters

Canonical misconfiguration is one of the leading causes of ranking fluctuations after site migrations and one of the hardest issues to diagnose post-hoc. When Google canonicalizes to a different URL than intended, link equity and crawl attention are redirected away from the correct page — a loss that can persist for weeks after the fix is deployed.

How to fix

  1. 1.Ensure every published page has a self-referencing canonical tag pointing to its single preferred URL.
  2. 2.Audit all canonical tags pointing to external domains or unexpected paths — these are rarely intentional and are often introduced by CDNs or CMS plugins.
  3. 3.For duplicate products accessible via multiple URL paths, canonicalize to the version with the highest inbound link count.
  4. 4.Verify your XML sitemap only includes canonical URLs, not their parameter or pagination variants.
Read the canonical issues SEO guide →

Want to fix Canonical Issues on your own site?

Canonical Issues SEO guide →

Common Questions

What happens if a page has no canonical tag?

Without a canonical, search engines choose which URL to index on their own — often picking a parameter variant or an HTTP version instead of your preferred URL. This splits link equity across duplicates.

Can a wrong canonical cause a page to disappear from search?

Yes. A canonical pointing to a different URL tells Google to index that URL instead. If the destination is a redirect or a noindex page, the original URL can be deindexed entirely.

Should every page have a self-referencing canonical?

Yes. Every published page should include a canonical pointing to its own preferred URL, even if no duplicate exists. This prevents crawlers from creating accidental duplicates via URL parameters.

#DomainCategoryCanonical IssuesSEO ScoreUpdated
651

kmgvitallinks.online

1pages
80Mar 4, 2026
652

inturahq.com

1pages
80Mar 4, 2026
653

shop.curemyswing.com

1pages
80Mar 4, 2026
654

documind.chat

1pages
85Feb 28, 2026
655

resonantmail.com

1pages
85Feb 28, 2026
656

theinfluencer.ai

1pages
85Feb 28, 2026
657

accesslabs.io

1pages
85Feb 28, 2026
658

texthumanizer.pro

1pages
85Feb 28, 2026
659

mentis-ai.net

1pages
85Feb 28, 2026
660

admix.software

1pages
85Feb 28, 2026
661

brandiblyai.com

1pages
85Feb 28, 2026
662

everyclaw.ai

1pages
85Feb 28, 2026
663

clawd.rigbox.dev

1pages
85Feb 28, 2026
664

draftly.live

1pages
85Feb 28, 2026
665

imagerouter.io

1pages
85Feb 28, 2026
666

mailai.live

1pages
85Feb 28, 2026
667

dynalis-studio.com

1pages
85Feb 28, 2026
668

motionreplica.com

1pages
85Feb 28, 2026
669

clawstack.app

1pages
85Feb 28, 2026
670

taskcontrol.pro

1pages
85Feb 28, 2026
671

gpt.email

1pages
85Feb 28, 2026
672

nojumper.wtf

1pages
85Feb 28, 2026
673

muphi.io

1pages
85Feb 28, 2026
674

adsgateway.io

1pages
85Feb 28, 2026
675

careerlab.dev

1pages
85Feb 28, 2026
676

useitz.com.br

1pages
85Feb 28, 2026
677

apemanor.com

1pages
85Feb 28, 2026
678

argu.pro

1pages
85Feb 28, 2026
679

pictales.online

1pages
85Feb 28, 2026
680

sonevamusic.com

1pages
85Feb 28, 2026
681

heybjorn.com

1pages
85Feb 28, 2026
682

app.qcomo.app

1pages
85Feb 28, 2026
683

rockittsocial.com

1pages
85Feb 28, 2026
684

pocket-coach-pro.replit.app

1pages
85Feb 28, 2026
685

garmint.app

1pages
85Feb 28, 2026
686

bildoro.app

1pages
85Feb 28, 2026
687

engagegpt.in

1pages
85Feb 28, 2026
688

teacheat.com

1pages
85Feb 28, 2026
689

mascotai.app

1pages
85Feb 28, 2026
690

pixarify.app

1pages
85Feb 28, 2026
691

pouf.chat

1pages
85Feb 28, 2026
692

bindali.com

1pages
85Feb 28, 2026
693

rokeno.com

1pages
85Feb 28, 2026
694

resumehero.io

1pages
85Feb 28, 2026
695

scoutreach.works

1pages
85Feb 28, 2026
696

barberblendai.com

1pages
85Feb 28, 2026
697

agensi.io

1pages
85Feb 28, 2026
698

iclawd.ai

1pages
85Feb 28, 2026
699

reply-safe.app

1pages
85Feb 28, 2026
700

ragnostic.in

1pages
85Feb 28, 2026

Showing 651700 of 749 sites

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