ToolToUse

Website / SEO Tools

Hreflang Tag Validator

Check hreflang link tags for invalid codes, duplicates and missing x-default.

Checks the tags you paste; it does not fetch pages to confirm return links.

Website / SEO Tools

Hreflang Tag Validator

Local only
Everything stays in your browser

Your text is processed on your device — nothing is uploaded to a server.

How it works

Checks language/region code format (ISO 639 + ISO 3166), absolute URLs, duplicates, en-UK mistakes and x-default. Checks the tags you paste; it does not fetch pages to confirm return links.

Good to know

Frequently asked questions

How do I use it?

Enter your hreflang tags and press “Validate”. Check the result, then copy or download it.

How does it work?

Checks language/region code format (ISO 639 + ISO 3166), absolute URLs, duplicates, en-UK mistakes and x-default.

Are there limitations?

Checks the tags you paste; it does not fetch pages to confirm return links.

Is my data uploaded?

No. Everything is processed in your browser and nothing is sent to a server. No account is needed.

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