Resources > HTTP request headers > Sec-Ch-Ua

HTTP request headers

A request headers is an HTTP header that the client sends to the server.

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logo Sec-Ch-Ua

ID: 4
TypeNon-standard
SubypeUnofficial Client Hints
Related headersSec-Ch-Ua-Arch, Sec-Ch-Ua-Full-Version, Sec-Ch-Ua-Mobile, Sec-Ch-Ua-Model, Sec-Ch-Ua-Platform, Sec-Ch-Ua-Platform-Version
Last seen2021-04-22 13:23:44
Linkhttps://wicg.github.io/ua-client-hints/ External link
NoteNon-standard Client Hints promoted by Google.
Syntax
Sec-CH-UA: <sh-list>

Example header value:
"Opera";v="75", " Not;A Brand";v="99", "Chromium";v="89"

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