Hreflang

Hreflang is an HTML attribute used to specify the language and geographic targeting of a webpage. It helps search engines serve the correct language version of your content to users in different regions. For example, you might have English content for the US (en-US), English content for the UK (en-GB), and Spanish content for Spain (es-ES). Without hreflang tags, search engines might show the wrong language version, or flag your pages as duplicate content. Implementing hreflang requires adding link elements in the HTML head, HTTP headers, or sitemap, and must be bidirectional — each page must reference all other language versions, including itself.