HTTP headers | Accept-Encoding

HTTP headers | Accept-CH

Last Updated : 22 Nov, 2019

The HTTP Accept-CH header is a response-type header that indicates the client hints that the server can support and should include in further requests. Syntax:

Accept-CH: client hints

Note: The client hints can be more than one and are to be separated by commas. Directives: The HTTP Accept-CH header accepts a single directive as mentioned above and described below:

client hints: This directive contains a set of HTTP request header fields for proactive content negotiation for indicating a list of device and agent specific preferences.

Below examples will illustrate the HTTP Accepts-CH header: Examples:

When one client hint is used. In this example, Viewport-Width is the client hint and it indicates the layout viewport width in CSS pixels.
```
Accept-CH: Viewport-Width
```
When multiple client hints are used. In this example Viewport-Width and Width are the client hints.
```
Accept-CH: Viewport-Width, Width
```

To check the Accept-CH in action go to Inspect Element -> Network check the response header for Accept-CH like below.

Supported Browsers: The browsers are compatible with the HTTP Accept-CH header are listed below:

Google Chrome
Opera

HTTP headers | Accept-Encoding

H

harshcooldude700

Improve

Article Tags :

Similar Reads

HTTP headers | Accept

The HTTP Accept header is a request type header. The Accept header is used to inform the server by the client that which content type is understandable by the client expressed as MIME-types. By using the Content-negotiation the server selects a proposal of the content type and informs the client of

HTTP headers | Accept-Charset

The HTTP Accept-Charset is a request type header. This header is used to indicate what character set are acceptable for the response from the server. The accept-charset header specifies the character encodings which are accepted by the client and this header also allows a user-agent to specify the c

HTTP headers | Accept-Encoding

The HTTP headers Accepts-Encoding is usually a comparison algorithm of request header. All the HTTP client used to tell the server which encoding or encodings it supports. Then the server will respond in any of the supporting encoding formats. The server selects any one of the proposals, uses it and

HTTP headers | Accept-Patch

The Patch is used for making partial changes to an existing resource. The Accept-Patch HTTP header is a response HTTP header that specifies the patch document is supported or not and also the media type that the server is able to understand. The presence of a specific patch document format in this h

HTTP headers | Accept-Ranges

The HTTP Accept-Ranges is the Response type header also the part of the ranges system. This header act as a marker that is used by the server to supports the partial request of the clients. The HTTP Accept-Ranges is useful when the client requests any particular portion of a huge file then this head

HTTP headers | Expect

The HTTP headers Expect request-header field is used to indicate specific behaviors or expectations that the server needs to fulfill in order to respond to the client. Generally, Expect: 100-continue is the only expectation defined for the header field. If the data provided in the header field meets

HTTP headers | Expect-CT

The HTTP Expect-CT header is a response-type header that prevents the usage of wrongly issued certificates for a site and makes sure that they do not go unnoticed and it also allows sites to decide on reporting or enforcement of Certificate Transparency requirements. Syntax: Expect-CT max-age=<ag

HTTP headers | Date

Description: HTTP headers are used to pass additional information with HTTP response or HTTP request. Date HTTP header contains the date and time at which the message was generated. It is supported by all the browsers. Syntax: Date: day-name, day month year hour:minute:second GMT Directives: day-nam

HTTP headers | Accept-Language

This HTTP Accept-Language header tells the server about all the languages that the client can understand. With the help of content negotiation, there will be a set of supported languages in the HTTP Accept-Language proposal then the server selects one of the proposals of those languages and place th

HTTP headers | DNT

The HTTP DNT Header is a request header that allows users to choose if their activity could be tracked by each server and web application that they communicate with via HTTP. The generated header field is a mechanism that allows the user to opt-in or out of the tracking. Tracking allows user to expe