Basics of HTTP protocol

What is HTTP protocol?
HTTP stand for Hypertext transfer protocol.
It is application level protocol
It is client server protocol

Request/Response

Requests are sent by one entity like web browser and response is sent by another entity like web server.
Between this request and response there are numerous entities, collectively designated as proxies, which perform different operations and act as gateways or caches.
In reality, there are more computers between a browser and the server handling the request: there are routers, modems, and more.

How does HTTP protocol works?

HTTP uses the TCP transport protocol to make this connection. By default, web traffic uses TCP port 80

Basics of HTTP protocol:
It is simple – Human readable
It is extensible
It is stateless but not sessionless
It mostly uses TCP transport protocol

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