HTTP headers lookup

HTTP headers lookup is a process of checking the HTTP headers of a website or web application to gather information about the request and response between the client and server. This information includes details such as the type of content being requested, the encoding used, the status of the response, and various other metadata about the request and response. HTTP headers are key-value pairs sent in the header section of an HTTP request or response and are used to convey additional information about the resource being requested or the response provided.