List of file transfer protocols. List of HTTP header fields. HTTP header fields are components of the message header of requests and responses in the Hypertext Transfer Protocol (HTTP).
They define the operating parameters of an HTTP transaction. General format[edit] Field names[edit] List of HTTP status codes. This is a list of Hypertext Transfer Protocol (HTTP) response status codes.
Status codes are issued by a server in response to a client's request made to the server. It includes codes from IETF Request for Comments (RFCs), other specifications, and some additional codes used in some common applications of the Hypertext Transfer Protocol (HTTP).