oglocale

oglocale refers to the locale setting used by the Open Graph protocol, represented by the og:locale meta tag in a webpage’s head. This tag declares the language and regional variant of the content, helping social platforms generate appropriate previews and tailor localization. A typical example is a page in American English: og:locale with the value en_US.

Values for og:locale usually combine a language code and a country or region code. The traditional Open Graph convention uses an underscore, such as en_US, fr_FR, or es_MX. Some modern implementations or documentation also acknowledge the IETF BCP 47 format with a hyphen (en-US, fr-FR); however, many networks expect the underscore form. If a page supports multiple locales, the og:locale:alternate tag can be used to list additional locales.

Placement and usage: The og:locale tag should be included in the HTML head section of the page and should reflect the primary language and regional variant of the content. It plays a role in how previews are rendered and may influence content localization on social platforms. When a page has multilingual versions, maintain a primary locale with og:locale and provide alternate locales using og:locale:alternate for other language variants.

Best practices: Choose a locale that matches the visible language of the page, align it with the site’s canonical URLs, and keep alternate locales updated as content changes. While og:locale is optional, providing accurate locale information improves localization and user experience in social sharing.