Sec-CH-UA-Model
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The Sec-CH-UA-Model
user agent client hint request header indicates the device model on which the browser is running.
Header type | Request header, Client hint |
---|---|
Forbidden header name | yes |
Syntax
http
Sec-CH-UA-Model: <device-version>
Directives
<device-version>
-
A string containing the device version. For example "Pixel 3".
Examples
A server requests the Sec-CH-UA-Model
header by including the Accept-CH
in a response to any request from the client, using the name of the desired header as a token:
http
HTTP/1.1 200 OK
Accept-CH: Sec-CH-UA-Model
The client may choose to provide the hint, and add the Sec-CH-UA-Model
header to subsequent requests.
For example, on mobile phone the client might add the header as shown:
http
GET /GET /my/page HTTP/1.1
Host: example.site
Sec-CH-UA: " Not A;Brand";v="99", "Chromium";v="96", "Google Chrome";v="96"
Sec-CH-UA-Mobile: ?1
Sec-CH-UA-Platform: "Android"
Sec-CH-UA-Bitness: "64"
Sec-CH-UA-Model: "Pixel 3 XL"
Specifications
Specification |
---|
User-Agent Client Hints # sec-ch-ua-model |
Browser compatibility
BCD tables only load in the browser