Enter the page URL
Use the absolute HTTP or HTTPS URL for the page whose HTML you will paste. It is used for comparison, not fetched.
Hreflang Checker
Inspect pasted HTML hreflang annotations for code syntax, duplicate languages, absolute URLs and self-reference.
Free
No sign-up
Runs in your browser
Result
Your result will appear here
This is a local review, not a live crawl or ranking score. Review the limits below.
What is Hreflang Checker?
Hreflang Checker is a free online seo tool from GigaTools. Inspect pasted HTML hreflang annotations for code syntax, duplicate languages, absolute URLs and self-reference. It runs entirely in your web browser, so nothing is uploaded and it works on any device without installing software.
Common uses
- Review a multilingual page before publishing.
- Catch repeated language codes in a copied template.
How it works
How to use Hreflang Checker
Paste alternate-language tags
Copy the link tags with rel="alternate" and hreflang. The checker accepts up to 1 MB and 1,000 annotations from HTML only.
Review and verify return links
Review duplicate codes, URL format and self-reference. Open each real language version separately and confirm that its annotations link back.
FAQ
Good to know
How do I use Hreflang Checker?
1. Enter the page URL: Use the absolute HTTP or HTTPS URL for the page whose HTML you will paste. It is used for comparison, not fetched. 2. Paste alternate-language tags: Copy the link tags with rel="alternate" and hreflang. The checker accepts up to 1 MB and 1,000 annotations from HTML only. 3. Review and verify return links: Review duplicate codes, URL format and self-reference. Open each real language version separately and confirm that its annotations link back.
Does this validate every language and region code?
No. It checks the shape of two-letter language codes, optional four-letter scripts and optional two-letter regions, plus x-default. It does not verify membership in ISO registries or Google support for a specific code.
Does this confirm return links or indexing?
No. It does not fetch any page, HTTP Link header or sitemap. It cannot check HTTP status, reciprocal tags, canonical selection, translated content or Google indexing. Review those separately.
Is x-default compulsory?
No. It can identify a fallback page for users whose language is not explicitly covered. The report shows whether it is present without treating absence as an automatic error.
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