It’s very important that you have an SSL certificate on your site to instill user’s trust: you need it to keep user data secure, verify ownership of your website, and to prevent attackers from creating a false version of your site. Authentication SSL certificates verify clients that owns the domain. This prevents domain attacks and spoofs. Encryption SSL/TLS encryption is possible via the public-and-private key pairing that facilitates SSL certificates. Clients get the public key to open a TLS connection from the server’s SSL certificate. HTTPS SSL certificates are required for the HTTPS web address. HTTPS (the secure version of HTTP) appear on websites that have traffic encrypted by SSL/TLS. Plus, in addition to securing user data, HTTPS displays a credible “trust factor” from the perspective of the site visitor.