Free Hreflang Tag Checker
Validate hreflang tags in your page HTML. Detects missing x-default, duplicate locales, relative URLs, and invalid BCP 47 language codes.
Hreflang Tag Checker
Copy page source (Ctrl+U) and paste here, or use browser DevTools to copy the <head>.
Hreflang Best Practices
Always use absolute URLs
Hreflang href values must be fully qualified URLs (https://...), not relative paths.
Include x-default
Add hreflang="x-default" for users whose language/region is not explicitly targeted.
Self-reference required
Each page must include a hreflang tag pointing to itself. Google requires this.
Bidirectional links
If page A links to page B with hreflang, page B must link back to page A. Missing return links are ignored.
Use valid BCP 47 codes
Use ISO 639-1 language codes (en, fr, de) optionally combined with ISO 3166-1 region codes (en-GB, fr-CA).
No duplicate locales
Each language/region combination should appear only once. Duplicates cause Google to ignore all but one.
Hreflang tags tell Google which language and regional variation of a page to show in search results. Incorrect implementation can cause the wrong page to rank in the wrong country.
Frequently Asked Questions
What errors are checked?
Missing x-default, self-referential tag, duplicate locales, invalid language codes, and relative URLs.
What is x-default?
x-default tells Google which page to show users whose language/region is not specifically targeted.
Is it free?
Yes, completely free.
Is my data safe with this tool?
Absolutely. The Hreflang Tag Checker processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.
Does the Hreflang Tag Checker work on mobile devices?
Yes, the Hreflang Tag Checker is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.
Do I need to create an account to use this tool?
No account or registration is needed. Simply open the Hreflang Tag Checker in your browser and start using it immediately. There are no sign-up walls or usage restrictions.
Does this tool follow Google's latest guidelines?
Yes, the Hreflang Tag Checker is built following current Google Search guidelines and best practices. We regularly update the tool to reflect changes in search engine requirements.
How do I use the Hreflang Tag Checker?
Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.
Which browsers are supported?
The Hreflang Tag Checker works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.
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About Free Hreflang Tag Checker
Free Hreflang Tag Checker is a free, browser-based tool in our SEO Tools collection. Everything runs locally on your device — no uploads, no sign-up, and your data stays private.