Description: A response header is a piece of information sent back to the client as part of the response in a communication between a client and a server, especially in the context of web protocols like HTTP. These headers are crucial for the correct interpretation of the response by the client, as they provide metadata about the content being sent. Response headers can include information about the content type (e.g., JSON, XML, HTML), the status of the response (such as HTTP status codes indicating success or error), and details about caching, content length, and other relevant parameters. The structure of a response header follows a key-value format, where each header has a name and an associated value. This information allows clients to properly handle the response, optimize performance, and ensure interoperability between different systems. In summary, response headers are essential components in network communication, facilitating effective interaction between applications and services across the web.
