0.9,de-de -

: By setting a high weight like 0.9, you ensure the site knows exactly which language to prioritize if multiple options are available.

The request refers to setting a language preference within a browser's Accept-Language header. 0.9,de-DE

: 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" : By setting a high weight like 0