Table of Content
The Content-Encoding HTTP header is a crucial component that provides details about how the entity data of a responding message has been encoded. This header is predominantly used for compressing the media-type content of a particular website. It can drastically reduce the amount of data that needs to be transferred over the web, considerably improving the speed and performance of the website.
Content-Encoding: gzip Content-Encoding: compress Content-Encoding: deflate Content-Encoding: identity Content-Encoding: br
The various directives that may be used for the Content-Encoding HTTP header include:
- br (Brotli)
To use the Content-Encoding header you would encode it into your HTTP as follows:
GET /example HTTP/1.1 Host: www.example.com Accept-Encoding: gzip, deflate
And a possible response could be:
HTTP/1.1 200 OK Content-Encoding: gzip (content here)
How to modify Content-Encoding header
ModHeader is a Chrome extension that allows you to add, modify, or remove HTTP request headers and can be used to modify the Content-Encoding header.
To use ModHeader to change the Content-Encoding header:
- Install ModHeader from the Chrome web store
- Click on the ModHeader icon in the toolbar
- Click to add a new Profile
- Enter "Content-Encoding" into 'Request headers' Name field, and the type of encoding you want into the Value field. For example, gzip.
This can be beneficial in testing the compression of your server to ensure it's functioning optimally. It can also help in experiencing how your website performs under different types of encodings.