SEO Tool

Canonical & hreflang auditor

Find conflicting canonical tags and hreflang alternates on a public page.

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Today’s tool allowance
  • Domains: 3 left of 3
  • Unique URLs: 10 left of 10
  • Runs: 10 left of 10

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Checks HTML link tags and HTTP Link headers. Does not crawl every alternate language URL.

Canonical and hreflang auditor

Canonical tags and hreflang annotations tell search engines which URL is preferred and how language/region variants relate. Conflicts cause duplicate-content confusion and wrong regional landing pages in search.

Common problems this tool helps catch

  • Self-referencing canonicals missing on key pages
  • Canonical pointing to a redirect or soft-404
  • Hreflang sets that omit return links
  • Mismatched language codes or incomplete locale clusters

Best practice checklist

Keep one clear canonical per indexable page, ensure hreflang clusters are reciprocal, and include x-default when you have a global fallback. Re-audit after launching new locales or changing URL structures.

Frequently asked questions

Do I need hreflang on a single-language site?

Usually no. Focus on solid canonicals and consistent internal linking.

Can canonicals replace redirects?

No. Use 301 redirects when consolidating URLs permanently.