An SSL certificate is required for a website to protect user data, verify owner, gain trust, and prevent attackers from creating a fake site.
Encryption SSL/TLS encryption can be achieved because SSL certificates allow for the public-private key pairing. A users web browser gets the public key needed to open a TLS link from a server’s SSL Certificate.
Authentication: SSL certificates prove that the client is speaking to the right server for the domain. This prevents domain piracy along with other types of attacks like spoofing.
HTTPS an SSL certificate is essential for any HTTPS website address. HTTPS stands for secure HTTP. HTTPS websites use SSL/TLS to encrypt their traffic.
HTTPS not only secures user data during transit but also makes websites more trustworthy from the user’s point of view. Although most users don’t notice the difference between http:// and https:// addresses, many browsers are now marking HTTP sites as “not secured” in more visible ways to encourage people to switch to the more secured HTTPS version.