Accept:,text/html,application/xhtml Xml,application/xml;q=0,9,image/avif,image/webp,image/apng,*/*;q=0,8,application/signed,exchange;v=b3;q=0,9 < FAST – Edition >

: This is used for Signed HTTP Exchanges (SXG), which allows a browser to verify the authenticity of a page even if it was served from a cache or CDN.

: The browser primarily wants a webpage.

Are you trying to or debug a specific server response with this header? : This is used for Signed HTTP Exchanges

import requests url = "https://example.com" headers = { "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7" } data = {"key": "value"} response = requests.post(url, headers=headers, data=data) print(response.status_code) Use code with caution. Copied to clipboard Breakdown of the Header Values:

To send a POST request with this specific header, use the -H flag: import requests url = "https://example

: These are "quality values" (weighting). A higher value means a higher preference.

If you are trying to "make a POST request" using this header, here is how you would structure it in different common tools: 1. Using cURL (Terminal) If you are trying to "make a POST

The string you provided is a standard , typically sent by modern web browsers like Google Chrome or Microsoft Edge. It tells a web server which types of content (MIME types) the browser is able to process and in what order of preference.