Enter any page URL and our hreflang checker finds every <link rel="alternate" hreflang="…"> tag and validates the language codes, self-reference and x-default.
What is a hreflang checker?
A hreflang checker is a free tool that loads any web page, finds its hreflang tags, and validates them. It works as a hreflang tags testing tool — paste a URL to check the language/region codes, self-reference and x-default in seconds, no signup.
Test your hreflang tags
Each language version of a page should link to every other version and reference itself. This tool lists every hreflang tag with its code and target URL, then flags invalid codes, a missing self-reference, or a missing x-default — so you can test hreflang tags and fix issues before they cost you international rankings.
Why hreflang matters for SEO
Hreflang tells Google which language or regional version of a page to serve to which users. Correct hreflang prevents the wrong-language page from ranking, reduces duplicate-content confusion, and gives international visitors the right experience.
How to use the hreflang checker
Paste a page URL into the hreflang checker above.
Click “Check” — we fetch the live page and read its hreflang tags.
Review each code, the self-reference, and whether an x-default is present.
Fix invalid codes or missing references, then re-check.
A hreflang checker is a free tool that fetches any page, finds every <link rel="alternate" hreflang="…"> tag, and validates it — checking the language/region codes, whether the page references itself, and whether an x-default is present. It works as a hreflang tags testing tool, no signup required.
Paste the page URL into the hreflang checker above and run it. We fetch the live HTML, list every hreflang tag with its code and target URL, and flag invalid codes, a missing self-reference, or a missing x-default — the quickest way to test hreflang tags on a page.
Each hreflang value must be a valid language code ("en"), a language-region code ("en-US"), or "x-default". Each language version should link to all the others and include a self-referencing hreflang tag. This tool checks all of that for you.
x-default tells search engines which URL to show users whose language/region doesn't match any of your specific hreflang tags — usually a global or language-selector page. It's optional but recommended, and the checker flags when it's missing.
Hreflang tells Google which language or regional version of a page to serve in search results. Correct hreflang prevents the wrong-language page from ranking and avoids duplicate-content issues across international versions of your site.
Completely free and online, with no account required. It's part of WebsiteAuditTools' free suite of on-page SEO checkers.