BASELINE NowYouCanUse.com

Limited Availability

id: ua-client-hints

User agent client hints

The Sec-CH-UA HTTP request header and the navigator.userAgentData API expose browser and platform information used to vary responses and application logic. User agent client hints are similar to user agent strings but more privacy-preserving and safer to parse.

Baseline Status: This feature is currently Limited and is missing in at least one major browser engine.

Desktop Browser Engine Support

Google Chrome

90

Supported

Mozilla Firefox

—

Unsupported

Apple Safari

—

Unsupported

Microsoft Edge

90

Supported

Mobile Browser Engine Support

Chrome Android

90

Firefox Android

—

Safari iOS

—

Specifications and References

Specification ↗ Feature XML ↗

MDN Browser Compat Data Keys:

api.Navigator.userAgentData ↗ api.Navigator.userAgentData.secure_context_required ↗ api.NavigatorUAData ↗ api.NavigatorUAData.brands ↗ api.NavigatorUAData.getHighEntropyValues ↗ api.NavigatorUAData.mobile ↗ api.NavigatorUAData.platform ↗ api.NavigatorUAData.toJSON ↗ api.WorkerNavigator.userAgentData ↗ http.headers.Accept-CH.Sec-CH-UA ↗ http.headers.Accept-CH.Sec-CH-UA-Arch ↗ http.headers.Accept-CH.Sec-CH-UA-Full-Version ↗ http.headers.Accept-CH.Sec-CH-UA-Mobile ↗ http.headers.Accept-CH.Sec-CH-UA-Model ↗ http.headers.Accept-CH.Sec-CH-UA-Platform ↗ http.headers.Accept-CH.Sec-CH-UA-Platform-Version ↗ http.headers.Sec-CH-UA ↗ http.headers.Sec-CH-UA-Arch ↗ http.headers.Sec-CH-UA-Bitness ↗ http.headers.Sec-CH-UA-Form-Factors ↗ http.headers.Sec-CH-UA-Full-Version-List ↗ http.headers.Sec-CH-UA-Mobile ↗ http.headers.Sec-CH-UA-Model ↗ http.headers.Sec-CH-UA-Platform ↗ http.headers.Sec-CH-UA-Platform-Version ↗ http.headers.Sec-CH-UA-WoW64 ↗