Content-Language representation header is used to describe the language(s) intended for the audience, so users can differentiate it according to their own preferred language.
For example, if "
Content-Language: de-DE" is set, it says that the document is intended for German language speakers (however, it doesn't indicate the document is written in German. For example, it might be written in English as part of a language course for German speakers. If you want to indicate which language the document is written in, use the
lang attribute instead).
Content-Language is specified, the default is that the content is intended for all language audiences. Multiple language tags are also possible, as well as applying the
Content-Language header to various media types and not only to textual documents.
Content-Language: de-DE Content-Language: en-US Content-Language: de-DE, en-CA
Multiple language tags are separated by a comma. Each language tag is a sequence of one or more case-insensitive subtags, each separated by a hyphen character ("
%x2D). In most cases, a language tag consists of a primary language subtag that identifies a broad family of related languages (e.g., "
en" = English) and is optionally followed by a series of subtags that refine or narrow that language's range (e.g., "
en-CA" = the variety of English as communicated in Canada).
<html lang="de"> … </html>
Do not use this meta element like this for stating a document language:
<!-- ⚠️ This is bad practice --> <meta http-equiv="content-language" content="de" />
Content-Language header is used to specify the page's intended audience and can indicate that this is more than one language.
Content-Language: de, en
|Unknown specification |
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