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 1762 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 Score
1301

pipelineapp.pro

Productivity
100%1 pages
85
1302

tymflow.vercel.app

Productivity
100%1 pages
85
1303

paytrackr.app

Fintech
100%1 pages
85
1304

pictales.online

Artificial Intelligence
100%1 pages
85
1305

joinmirra.app

Fintech
25%1 pages
85
1306

finpacto.com

Fintech
100%1 pages
85
1307

cozynitein.com

Entertainment
100%1 pages
85
1308

householdr.cloud

Fintech
100%1 pages
80
1309

wlthywise.com

Fintech
100%1 pages
80
1310

quotas.app

Productivity
100%1 pages
85
1311

chronojumper.com

Entertainment
100%1 pages
85
1312

random-trading-advices.web.app

Fintech
100%1 pages
85
1313

habitstracker.ch

Productivity
33%1 pages
85
1314

marketplace.stripe.com

Fintech
100%1 pages
80
1315

payme.ninja

Fintech
100%1 pages
85
1316

findoy.com

Fintech
100%1 pages
85
1317

suprportal.com

Design Tools
100%1 pages
85
1318

justbudget.net

Fintech
100%1 pages
85
1319

ascentrapartners.com

Fintech
100%1 pages
80
1320

trackmymula.com

Fintech
100%1 pages
85
1321

inpera.app

Productivity
100%1 pages
85
1322

trymaxi.app

Productivity
100%1 pages
85
1323

zoomedin.in

Productivity
100%1 pages
85
1324

benasleo.com

Marketing
50%1 pages
65
1325

pucafocus.com

Productivity
100%1 pages
80
1326

app.renoassist.io

Marketing
100%1 pages
75
1327

whostheimpostor.app

Games
100%1 pages
85
1328

inturahq.com

Marketing
100%1 pages
80
1329

gptbreeze.lemonsqueezy.com

Artificial Intelligence
100%1 pages
80
1330

app.apogee.ad

Marketing
100%1 pages
85
1331

trytidey.com

Productivity
100%1 pages
95
1332

georiddles.com

Games
100%1 pages
85
1333

dynalis-studio.com

Artificial Intelligence
100%1 pages
85
1334

gameassets.xyz

Games
100%1 pages
85
1335

mpa.oretu.agency

Marketing
100%1 pages
85
1336

dreampreweddingai.lemonsqueezy.com

Artificial Intelligence
50%1 pages
80
1337

subexco.com

Marketing
100%1 pages
85
1338

pushsaas.com

Marketing
33%1 pages
55
1339

getprivateclaw.com

Productivity
100%1 pages
80
1340

useprogress.com

Productivity
50%1 pages
80
1341

draftly.live

Artificial Intelligence
100%1 pages
85
1342

launchmachine.app

Marketing
100%1 pages
85
1343

quizparti.com

Games
100%1 pages
85
1344

leadsmint.com

Marketing
100%1 pages
80
1345

roofclaw.com

IoT & Hardware
100%1 pages
85
1346

mailsign.online

Marketing
100%1 pages
85
1347

bluepigeon.app

Marketing
100%1 pages
85
1348

everyclaw.ai

Artificial Intelligence
100%1 pages
85
1349

sponsorapp.io

Marketing
100%1 pages
85
1350

wattron.in

IoT & Hardware
100%1 pages
80

Showing 13011350 of 1762 sites

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