HTTP headers play a crucial role as the gatekeepers of valuable information exchanged between web browsers, servers, and APIs. These headers, part of the HTTP request and response messages, convey essential metadata about the nature of the request or the content being transferred. Understanding and analyzing HTTP headers is key to diagnosing and resolving web-related issues for developers, marketers, and IT professionals.
HTTP headers are used in both requests sent by clients (browsers) to servers and the responses returned from servers to clients. Headers carry critical information such as content type, character set, caching methods, authentication status, etc.
