HTTP

Contents:

What is HTTP?
How does HTTP work?
Why HTTP is used?
Why HTTP is required?
Are HTTP sites safe?
What are the difference between HTTPS v/s HTTP?
What are the Pros and Cons of HTTP?

Introduction:

In the early 80s, the world was going to develop rapidly in the field of telecommunication. And new technologies were introduced over time. But it has always been a matter of how to get official documents, videos, audios, and images were transferred from one place to another. And it has always been a very expensive and time-consuming process to pick up such documents, take a flight and exchange them. It was a time-wasting and at time of accident loss of months of work. The telegram was a solution to this problem but not a complete solution.

What is HTTP?

In 1989, Sir Tim Barners-Lee solved this problem of transferring of data, in the form of an HTTP. He invented HTTP with corresponding to HTML and it was a complete package in which it was decided who to transfer a message, and which language was used. And after the passage of time HTTP includes upcoming demands. At that time first complete documented version of HTTP was VO 0.9 in 1991 and the last but not least was VO 3.0 in 2018.

HTTP means, method of transfer information with certain rules. It is used to normal web browsing and email/ messenger applications.

How does HTTP work?

Like any other communication, there are two ways of communication.

First medium, at which message can travel and
Second is communication destinations.

For example, if the Client wants to communicate with the server but the server does not respond then communication does not establish. Similarly, if the server is ready to respond but the client does not request.

First of all client sends a request to an HTTP server that he/she wants to communicate and when the server receives the client’s request, it sends back an ok message then the connection established between client and server.

Similarly when we click on any hyperlink on the web page, it means that we requested to the server to bring us to over destination point or page we need. Switching from on-page to the other is all about HTTP. The web is the biggest source of information made by HTTP.

Sometimes, while using the internet we faced some ambiguous messages which range from 400 to 500+. These messages generated when the server of the client is unable to respond to the request.

Why HTTP is used?

If we want to communicate over the internet then there is not any way other than the use of HTTP. Because it is responsible to transfer data over the internet. It allows computers and mobile phones to send and receive any information across the internet. It uses a standard language that is easily understandable for both machines and humans. Computers cannot connect to the webserver without interacting HTTP.

Why HTTP is required?

If we desire to transfer any type of information (images, documents, videos, audios, etc) over the internet between two computers then we must need HTTP. Because it is the only source that allows transferring information over the web. Because the internet is the name of the client-server protocol in which a request is sent to the server to act according to the client demand by using connection-oriented transport service like TCP. It is the responsibility of the HTTP server to check and balance every request processes it and if the request is pure and processable and takes all of the necessary actions.

Are HTTP sites safe?

If you are just sharing general information over the web then there is nothing wrong to use HTTP sits. But if you want to share your personal information over the internet then it is not recommended to use HTTP sites. Because HTTP is used as a transporter, web browser, and server. And when a client wants to interact with the web using an HTTP server it must need to know about the risk and benefits of the internet.

No one wants, that information which he/her share over the internet, leaks in the future. Because you never allow anyone to see your personal information such as account details, private messages even family pictures. So you need to know about the secure websites (HTTPS) over which your information is safe.

What are the difference between HTTPS v/s HTTP?

Before going on the detail we must need to understand the meaning of HTTP (Hypertext Transfer Protocol) and HTTPS (Hypertext Transfer Protocol Secure).

Both are used to transfer information over the internet but the main difference between them is, HTTP is somewhat insecure means of information transfer while HTTPS is a secured information transfer over the internet. After a lot of web account robbery developers of the internet, applications come to find a solution, before all the network becomes untrusty and rubbers the market. And in 2014 Google recommended that all sites must switch to HTTPS, so they can escape from web robbery. Security and trust are very important when you use any website. HTTPS used SSL (Secure Socket Layer) Certificate. SSL Certificate builds two keys, one is private and the other is the public key, Public key may know anyone but the private key just know the destination computer and when the message is received by the destination it and only it have authority to open the message. When SSL certificate is installed on the webserver then, it changes HTTP into HTTPS, and then traffic is secure.

HTTPS also uses TLS (Transfer Layer Security) protocol to make sure that transferred data is complete and not modified during transfer over the internet.

And this is the reason that customers trust and make comfortable to use HTTPS. Working and performance of HTTPS are the same as HTTP with the additional quality of security.

But it does not mean that HTTP is a now become useless. There are some drawbacks to using HTTPS. Some of them are, HTTPS is slower than HTTP because it needs to do some extra computational overhead on a per-byte basis because of the work of encrypting and decrypting the request and response. As SSL is a new technology, it does not support some older versions of web browsers. On the other hand, HTTP is an insecure way of transferring information over the internet. And there is no check and balance to check out the security.

What are the Pros and Cons of HTTP?

Pros:
It most commonly used to access HTML pages over the internet. HTTP does not use a lot of computational work to check and balance the information which may be transferred over the internet, that way, the speed of HTTP is very high and data can be transferred easily without any big trouble. It creates a direct connection between clients and the server. If you do not transfer confidential information then you may enjoy using HTTP. Risks of interception are reduced at the time of transmission HTTP download every file over the separate connection. Searching performance is best because of the simple message protocol. Clients and server may negotiate about the format of content which would be transferred over the internet.
Cons:

Due to the lake of encryption method HTTP seems to be unsecured. During communication, you do not know by whom you communicate and are your communication secured or not, because there have not any way to check the authentication of your communication. Even you do not know, that your message is transmitting completely without modification or not.

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