Hreflang Checker
Free hreflang checker — validate the hreflang annotations of any multilingual page: language codes, duplicates, self-reference, x-default and return links.
How it works
- Enter a URL, ideally of a multilingual page, e.g. example.com/es/.
- We extract all hreflang annotations and validate the language and region codes and their targets.
- We also fetch up to 5 referenced pages to verify the return links point back correctly.
Features
- Validates ISO language and region codes, including region-case mistakes
- Checks duplicates, relative URLs and self-referencing entries
- Verifies x-default presence and return links on up to 5 targets
- Clear pass/fail rows showing the exact value found
FAQ
What is hreflang?
hreflang tells search engines which language and region a page targets, so the right version appears in each market search results.
What is return link checking?
Google requires hreflang to be reciprocal: if page A points to page B, page B must point back to page A. Missing return links make annotations invalid.
Why validate language codes?
Codes must follow ISO 639-1 (language) and ISO 3166-1 Alpha 2 (region, always uppercase, e.g. en-US). Typos silently break the whole annotation set.
Is it free?
Yes, completely free with no signup. Results are cached for one hour.
Related tools
SEO Site AuditCrawl your site and get a full SEO audit report with prioritized fixes.
Website Analyzer Coming soonFull on-page analysis: meta, headings, images and more.
SEO CheckerInstant SEO report: meta tags, robots.txt, sitemap, SSL and WHOIS.Meta Tag AnalyzerInspect title, description, Open Graph and robots meta tags. Want a complete site health report?
Run a free SEO check — page, HTTPS, robots.txt, sitemap, SSL and WHOIS in one report.
Try SEO Checker