The Difference Between HTTP and HTTPS

The main difference between http:// and https:// is  all about keeping you secure. HTTP stands for Hyper Text Transfer Protocol. 
The S stands for "Secure"..  

The main differences between HTTP and HTTPS as below:

          HTTP                                                               HTTPS

-URL begins with “http://”                          -URL begins with “https://”

-It uses port 80 for communication              -It uses port 443 for communication

-Unsecured                                                -Secured

-Operates at Application Layer                     -Operates at Transport Layer

-No encryption                                           -Encryption is present

-No certificates required                              -Certificates required

If you visit a website or web page, and look at the address in the web browser, it is likely begin with the following: http://.

This  means that the website is talking to your  browser using the regular unsecured language.  In other words, it is possible for someone to  "eavesdrop" on your computer's conversation with  the Website. If you fill out a form on the  website, someone might see the information you send to that site.

This is why you never ever enter your credit card  number in an http website... 
but if the web address begins with https://, that means your computer is talking to the website in a Secure code that no one can eavesdrop on. You understand why this is so important, right?

If  a website ever asks you to enter your Credit/Debit card Information, you should automatically look to see if the web address begins with https://.

If  it doesn't,  You should NEVER enter sensitive information....such as a credit/debit card  number.