0.9,de-de May 2026

: Developers use these strings to test how their applications handle internationalization (i18n) and localization (l10n).

: If you are a developer using frameworks like Next.js, you can configure i18n locales to automatically detect these headers and serve the correct language version of your site to the user. Why this is a "Good Feature" 0.9,de-DE

The request refers to setting a language preference within a browser's Accept-Language header. : Developers use these strings to test how

: A typical optimized header for a German speaker who also knows English might look like: en-US,en;q=0.9,de-DE;q=0.8 . 0.9,de-DE