HTTP headers are an essential part of the HTTP protocol. They provide a way to send metadata about the request or response. Below is a list of some common HTTP headers and their descriptions.

Common HTTP Headers

  • Content-Type: Indicates the media type of the resource.
    • text/html: HTML content
    • application/json: JSON content
    • image/png: PNG image
  • Accept: Indicates the media types that the client is willing to accept.
    • text/html,application/json;q=0.9: Prefer HTML, but also accept JSON with a quality factor of 0.9
  • User-Agent: Identifies the client software making the request.
  • Authorization: Provides authentication information.
  • Cache-Control: Specifies directives for caching mechanisms in both requests and responses.
    • no-cache: Indicates that the response is subject to validation before use.
    • no-store: Indicates that the response must not be stored.
  • Connection: Indicates whether the connection should be kept alive.
    • keep-alive: Keep the connection open for future requests.

Image

Here's an image of a HTTP header in JSON format:

HTTP Header JSON

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