The most common use of the SSL/TLS protocol for secure web browsing is in the HTTPS address protocol. HTTPS is the secure version of the standard hypertext transfer protocol, or HTTP. The crucial “S” that differentiates them stands for “secure.” Once correctly configured, a website can be assigned an SSL/TLS certificate—a data file hosted in your website’s origin or caching server—that’s been validated by a trusted certificate authority (CA).
Secure communication between a server and a web browser begins with what is known as a TLS handshake. Here, both parties open a secure connection and exchange a public key that will be used to encrypt messages passing between them.
While the two parties are conducting the handshake protocol as part of the session, they both generate session keys, which encrypt and decrypt their communications after the TLS handshake.
For each new session, new session keys are applied to encrypt and decrypt communications. The server in possession of the session key matches the public key contained in the SSL/TLS certificate.
TLS certification also guarantees that the data has not undergone any changes while in transit.
The internet is broadly moving toward HTTPS connections now that business owners understand Google’s penalties and their visitors’ risk when sharing information.
When "https://" is part of your website’s address, you can be confident that your visitors’ communications are encrypted. A CA ensures your SSL/TLS certificate is valid and working properly.