HTTPpersistent
HTTPpersistent refers to the practice of keeping a TCP connection open and reusing it for multiple HTTP requests and responses within a single session. By avoiding the need to close and reopen a connection for each request, HTTPpersistent reduces the latency and CPU overhead associated with connection setup and teardown. In HTTP/1.1, connections are designed to be persistent by default, though either party can signal that a connection should be closed after a given response.
Mechanism: After a response is delivered, the connection is kept alive for potential subsequent requests. The
Relation to other protocols: HTTPpersistent is distinct from newer protocols such as HTTP/2 and HTTP/3, which
History and notes: The concept emerged with early HTTP implementations and became a standard feature in HTTP/1.1,