Definition
Non-Persistent HTTP Connection
A non-persistent HTTP connection is a TCP connection that carries exactly one HTTP request-response pair and is closed immediately afterwards.
In 1.0, non-persistent connections are the default: the client opens a new TCP connection for each resource (HTML page, image, stylesheet). 1.1 defaults to persistent connections instead, though a client can still request a non-persistent connection with
Connection: close.Non-persistent connections simplify server implementation but add the overhead of repeated TCP handshakes and slow-start for every resource.