Client Hints, a method to request information about the user's device or conditions, have been implemented in Chrome, but since the initial implementation the naming scheme has changed. If implemented, this proposal would add new client hints with a `sec-ch-` prefix to re-implement the following: `dpr`, `width`, `viewport-width`, `device-memory`, `rtt`, `downlink`, and `ect`.


This proposal seeks to align our implementation with the Client Hint proposal by adding the `sec-ch-` prefix where it’s missing.


Specification link

Specification being incubated in a Community Group

Status in Chromium


In development (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • No signal
  • No signal
  • Positive


Last updated on 2021-10-27