HTTPHTTP

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HTTP is a request/response standard of a HTTP is a request/response standard of a client and a server. A client is the end-user,client and a server. A client is the end-user, the server is the web site. The client maki the server is the web site. The client making a HTTP request—using a web browser, ng a HTTP request—using a web browser, spider, or other end-user tool—is referred tspider, or other end-user tool—is referred to as the o as the user agentuser agent. The responding serve. The responding server—which stores or creates r—which stores or creates resourcesresources such such as HTML files and images—is called the as HTML files and images—is called the oorigin serverrigin server. .

In between the user agent and origin servIn between the user agent and origin server may be several intermediaries, such aer may be several intermediaries, such as proxies, gateways, and tunnels. HTTP is proxies, gateways, and tunnels. HTTP is not constrained to using TCP/IP and its s not constrained to using TCP/IP and its supporting layers, although this is its mossupporting layers, although this is its most popular application on the Internet.t popular application on the Internet.

Indeed HTTP can be "implemented on toIndeed HTTP can be "implemented on top of any other protocol on the Internet, or p of any other protocol on the Internet, or on other networks." HTTP only presumes on other networks." HTTP only presumes a reliable transport; any protocol that proa reliable transport; any protocol that provides such guarantees can be used.vides such guarantees can be used.