Difference between HTTP and HTTPS

A lot of people end up getting confused when they see two different URL’s one as HTTP and other as HTTPS. So what is the difference between these two? In this post, I will discuss the evolution of HTTP and the difference between HTTP and HTTPS in simple term so that it makes sense quite easily.

What is HTTP

It is always necessary to know something about basics before going to the advanced topics. HTTP stands for HyperText Transfer Protocol. It is the system for transmitting and receiving information across server and the client. The Server is the machine where your website code is placed, and the client is nothing but your browser. HTTP manages the mutual understanding between the server and the client to exchange information or data successfully. The first HTTP had only one method called as GET, which would request a page from the server and the response was an HTML page. The latest version of HTTP defines nine request methods.

If you visit any website you may see the address gets prefixed with HTTP:// this means your browser is now connected to the server using HTTP. Now the HTTP isn’t the safest way to establish a connection, the problem with HTTP though is that it is vulnerable to people who might want to eavesdrop or see what your activity is all about.

This shouldn’t be any concern when you are just browsing any website or just Bing’ing, the problem comes when you are making a financial transaction over Internet. As we all know, Internet is not exactly a safe place. Apart from searching and browsing websites, we need to engage in money transactions, online purchases and secure file transfers. So how do we secure such financial transactions? The answer is HTTPS.

What is HTTPS

HTTPS or Secure HTTP some may call it is a combination of Hypertext Transfer Protocol (HTTP) with SSL/TLS protocol. Now everything you communicate over HTTPS will be sent and received in encrypted form, which adds the element of safety.

Difference between HTTP and HTTPS

As when a client makes a request to the server, the server responds by offering a list of encryption methods. When the client connects to a website via HTTPS, the website encrypts the session with a digital certificate. Secure Sockets Layer or SSL uses a cryptographic system that encrypts data with two keys that is browser and server send each other unique codes which are used for encryption for rest of the talk.

Https is used in many situations, such as log-in pages for banking, forms, corporate logins, and other applications in which data needs to be secured. It is always advised to never enter credit card details on websites that run on HTTP.

Difference between HTTP and HTTPS

1)      In case of HTTP URL begins with “HTTP://” and for HTTPS connection it is “HTTPS://”

2)      HTTP is unsecured on other hand HTTPS is secured.

3)      HTTP uses port 80 for communication unlike HTTPS which uses port 443

4)      No certificates required for validation in case of HTTP. HTTPS requires SSL Digital Certificate

5) No encryption in HTTP; Data encrypted before sending and receiving in HTTPS.

Hope this has cleared the difference between HTTP and HTTPS. If you have any questions or observations to make, please do comment.

You can read about HTTPS Security and Spoofing here.

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Posted by on , in Category General with Tags
Azharuddin Khan, being a technology enthusiastic, loves writing blogs and updating them. Currently pursuing his Bachelors in Information Technology, he also loves in extending support via providing hardware solutions.

12 Comments

  1. Florian

    Hi

    It is very interesting, congratulations !

    Can I translate it in my language and share it my personal blog?

  2. Khan Azharuddin12345

    Hi,
    Yes you can share this on your Blog with a back link to this post.
    Thanks

  3. chongthammienbac.vn

    Good article, how can i create a site with https:// ?

  4. Harsh Chauhan

    Very nice…Thanks..!

  5. Sambangi Gunsundar Keshavraman

    Can i not d/l a video from a https link?

  6. Arun Prabu

    Thanking you for giving nice explanation.

  7. Rae Mujahid Abbas

    nice definition. so easy to understand,thanks

  8. kshauret

    Would you recommend a bank use SSL even if they are not conducting transaction from their home page? Of course SSL is a must for their online banking, but what about just the home page?

  9. kgbme

    Of course you can!.. YouTube is (now) *https*, by standard.

  10. kgbme

    Ofc., any ‘serious’ web site should have SSL; BUT, sometimes not even this is a guarantee – like it’s been the case, fairly recently, with the INFAMOUS Heartbleed Bug and all of the fallout! xD

  11. kgbme

    Yes, yes!! :))

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