HTTP and HTTPs

The main difference between http:// and https:// is it's all about keeping you secure** HTTP stands for Hyper Text Transport Protocol.

There are some primary differences between http and https, however, beginning with the default port, which is 80 for http and 443 for https. Https works by transmitting normal http interactions through an encrypted system, so that in theory, the information cannot be accessed by any party other than the client and end server. There are two common types of encryption layers: Transport Layer Security (TLS) and Secure Sockets Layer (SSL), both of which encode the data records being exchanged.

• Http serves as a request and response procedure

http is hyper text transfer protocol which is responsible for transmitting and receiving information across the Internet where as https is secure http, which is used exchanging confidential information with a server, which needs to be secured in order to prevent unauthorized access.
HTTP stands for Hyper Text Transport Protocol, which is just a fancy way of saying it's a protocol (a language, in a manner of speaking) for information to be passed back and forth between web servers and clients.
Dedicated to HTTP protocol, show a wide range of HTTP related information, request and response header, content, sent and received cookies, stream, query strings, post form values…

• Https serves as a request and response procedure in a secure way of encrypted data from database.
  https is secure http, which is used exchanging confidential information with a server, which needs to be secured in order to prevent unauthorized access.

Https is used in many situations, such as log-in pages for banking, forms, corporate log ons, and other applications in which data needs to be secure. However, if not implemented properly, https is not infallible, and therefore it is extremely important for end users to be wary about accepting questionable certificates and cautious with their personal information while using the Internet.
( S which makes the difference between HTTP and HTTPS. The S (big surprise) stands for "Secure".)
If the web address begins with https://, that basically means your computer is talking to the website in a secure code. The web address (at the top of your web browser) will begin with https instead of http.
Https is not a separate protocol, but refers to the combination of a normal HTTP interaction over an encrypted Secure Sockets Layer (SSL) or Transport Layer Security (TLS) transport mechanism. This ensures reasonable protection from eavesdroppers and (provided it is implemented properly and the top level certification authorities do their job properly) man-in-the-middle attacks.

"Before request and after response" browser cache comparisons

Selectively clear caches and cookies which are related with HTTP/HTTPS sessions

Most of the modern web browsers display a "lock" icon in the status bar or, possibly, in the address field, when a secure https website is being accessed. Generally, you can click on the lock icon to display more information about the secure website.

The main difference between http:// and https:// is, It's all about keeping you secure.