Free tool
Hreflang Tag Checker
List every <link rel="alternate" hreflang> annotation on a page — which languages and regions it targets, whether x-default is set, and duplicate locales that confuse crawlers.
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Frequently asked questions
What do hreflang tags do?
They tell search engines which URL serves which language or region (en-GB, de, pt-BR …), so users get the right version and the variants don’t compete with each other as duplicate content.
Do I need an x-default?
Strongly recommended. x-default names the fallback URL for visitors who match none of your declared locales — typically your language selector or your primary version. This tool flags pages that declare alternates without one.
My hreflang lives in the sitemap or HTTP headers — why is nothing found?
This tool reads <link> tags in the page HTML, which is the most common implementation. Hreflang declared in an XML sitemap or HTTP headers is equally valid but not visible here.
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