Hreflang Checker
Validate multi-language alternate hreflang tags, ISO codes, and x-default fallbacks
Hreflang & International SEO Checker
Validate alternate language tags, ISO language/region codes, and x-default fallbacks
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What is Hreflang & International SEO Checker?
Validate multi-language alternate hreflang tags, verify ISO 639-1 language and ISO 3166-1 region codes, and audit x-default fallbacks.
The Hreflang Checker scans your web page for internationalization tags, verifies valid language and country formats, checks for self-referencing and x-default annotations, and surfaces common international SEO pitfalls.
How to Use
Enter the URL of any localized or multilingual page.
Click "Audit Hreflang Tags".
Review the full matrix of discovered language variants.
Check ISO code validity, self-referencing presence, and x-default fallbacks.
Why Use This Tool?
Ensure users in each country see the correct localized URL in Google
Validate ISO 639-1 language and ISO 3166-1 country code formats
Verify presence of the x-default global fallback
Prevent duplicate content issues across regional variations