This abbreviation added to the beginning of the domain name of the website represents the initials of the words "Hyper Text Transfer Protocol Secure". It is a set of rules and commands that play an active role in establishing the connection between websites and users. http and https are now automatically added by web browsers and make our job easier. At this point, whether the added protocol abbreviation will be http or https depends on whether the website server is a certificate holder.
What is Https?
https is the safe state of http.
Difference Between HTTP and HTTPS
The difference between these two concepts, which seem very close to each other, is that one has a certified security. The letter "s" at the end is short for secure (security). Obtaining this security certificate is not a very difficult process and it is an obtainable certificate for any size website, big or small.
SSL certificate is free for mailbox hosting users. You can click on the relevant link for high level SSL certificates.

Why Is It Important?
It is used to prevent various fraudulent and pirated actions. All of the information you have on your website can be accessed via http, but this process is not easy, but should not be risked. Thanks to the security certificate, the connection is encrypted and interception of third parties is prevented. This is very critical for attention and data security.