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HTTP Tutorial

HTTP Tutorial

The Hypertext Transfer Protocol ( HTTP) is a protocol that applies to distributed, cooperative, hypermedia information systems. This has been the basis for World Wide Web (i.e. the internet) data communication since 1990. HTTP is a generic and stateless protocol that can be used for other purposes and with modifications to its request methods, error codes and headers.

HTTP tutorial sets out simple and advanced HTTP (Hyper Text Transfer Protocol) concepts. Our tutorial HTTP is built for beginners and professionals both.

What is HTTP

  • HTTP stands for the Hypertext Transfer Protocol.
  • Hypertext Transfer Protocol is a rule collection that is used to transfer files such as audio , video, graphic image , text and other multimedia files to the World Wide Web ( WWW).
  • The HTTP is a protocol at application level. Communication typically takes place via TCP / IP sockets but it is also possible to use any secure transport.
  • The standard (default) port for HTTP link is 80 but it is also possible to use another port.
  • The first version of HTTP, released in 1991, was HTTP/0.9.
  • The new HTTP update is HTTP/3, launched September 2019. It provides an alternative to its HTTP/2 processor.
  • HTTP is used to allow a number of hosts and clients interact. It supports a configuration mix of networks.
  • HTTP is a protocol used to move the hypertext from the client end to the server end but HTTP has no security whatsoever.
  • Whenever a user opens his Web Browser, that means that the user uses HTTP indirectly.

Three important things about HTTP

Connectionless: Connectionless HTTP. If the browser is opened by the HTTP client, the window initiates an HTTP request. The client disconnects from the server after making the request, and is waiting for the response. When the response is ready, the server resets the connection again and provides the client response, after which the client disconnects the connection.

Independent Media: HTTP is independent Media. HTTP can provide data of any kind, as long as all computers can read it.

Stateless: A stateless HTTP. Only during the current request, the client and the server just know each other. If the connection is closed and two computers try to communicate again, the link must be treated as the connection.

HTTP Needs

  • The HTTP was primarily designed to fetch and submit the html document to the client. That all the HTTP did in 1991, and that it did not help other types of media, it only delivers html document.
  • It was exquisitely built and it has been continually evolving, and features have been added to it, making it the most efficient way to transfer data on the web easily and efficiently.

What is HTTPS

  • HTTPS stands for Hypertext Transfer Protocol Secure. HTTPS does have a stable transfer.
  • It is Netscape that created it.
  • HTTPS is used to encrypt or decrypt user requests to the HTTP page or HTTP page returned by the webserver.
  • HTTPS is initially used in HTTP/1.1 and specified in RFC 2616.
  • The standard port for transfer of the information in HTTPS is 443.
  • Using the HTTPS, it can be done securely using sensitive information that we want to transfer from one user to another.
  • HTTPS protocol uses HTTP on an SSL ( Secure Socket Layer) or TLS (Transport Layer Security) encrypted connection.
  • HTTPS protects the transmitted data from attacks and eavesdropping by man-in-the-middle (MITM).
  • It is the default protocol for financial transactions performed on the web.

Prerequisite

You must have the basic knowledge of web concepts, web browsers, web servers, client-based software, and server architecture before learning HTTP.

Audience

Our HTTP tutorial is designed to help beginners and professionals both.

Problems

We assure you when you learn HTTP tutorial you won't find any difficulty. But if you find any kind of mistake, then you can post it in our section on comment.


HTTP Tutorial Index

Sr.No. Topics
1 HTTP Overview
2 HTTP Parameters
3 HTTP Messages
4 HTTP Requests
5 HTTP Response
6 HTTP Methods
7 HTTP Status Codes
8 HTTP Header Fields
9 HTTP Caching
10 HTTP URL Encoding
11 HTTP Security
12 HTTP Message Examples
13 HTTP Content Negotiation