How it works
Enter a URL and this tool fetches the page HTML to find all <link rel="alternate" hreflang="..."> tags. It validates language codes, checks for self-referencing tags, x-default, and lets you verify that alternate pages link back correctly (return link validation).
Common issues detected
• Missing self-referencing tag (the page should reference itself)
• Missing x-default (should specify a fallback language)
• Non-standard language codes (e.g. "uk" instead of "en-GB")
• Missing return links (alternate pages don't link back)
• HTTP/HTTPS mismatches between hreflang URLs
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What is hreflang?+
hreflang is an HTML attribute that tells search engines which language and region a page targets. It helps prevent duplicate content issues for multilingual sites and ensures users see the right language version in search results.
Do I need a self-referencing hreflang tag?+
Yes. Google requires every page that uses hreflang to include a self-referencing tag pointing to itself. Without it, Google may ignore all hreflang annotations on that page.
What is x-default?+
x-default specifies the fallback URL for users whose language/region doesn't match any hreflang tag. It's strongly recommended for all multilingual implementations.
hreflang validation on every page
Lumina checks hreflang tags automatically with return link verification.
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