An annotation that tells search engines which language and regional version of a page to show each user.
ID
SS-DF-024
Confidence
High · 86
Evidence
Established
Updated
2026-07-08
Definition
An annotation that tells search engines which language and regional version of a page to show each user.
Hreflang is a set of annotations, placed in the HTML head, HTTP headers or sitemap, that maps equivalent pages across languages and regions so the right version is served in the right locale. Each variant must reference every other variant, including itself, for the cluster to be valid, and mismatched or one-way tags are a common source of errors. Correct hreflang prevents the wrong-language page ranking and reduces duplicate-content confusion on international sites.