Viewport-Width

HTTP request headers

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

ID: 8

Type	Standard
Subype	Client Hints
Related headers	Accept-CH, Downlink, Dpr, Save-Data, Sec-Ch-Device-Memory, Sec-Ch-Dpr, Sec-Ch-Prefers-Color-Scheme, Sec-Ch-Prefers-Reduced-Motion, Sec-Ch-Viewport-Height, Sec-Ch-Viewport-Width
Last seen	2025-12-05 07:09:40
Note	A number that indicates the layout viewport width in CSS pixels.

Example header value: 1000