SSL stands for Secure Sockets Layer, a digital certificate used to encrypt data sent between a user and a website. SSL certificates are most commonly used when sensitive information is being exchanged such as credit card details, personal details or passwords.
When you buy an SSL certificate, a trusted authority such as GeoTrust will vet and validate you and your businesses identity. Once in place it secures connections from a web server to a web browser and a lock icon appears in the browser bar. This icon instills user confidence and trust in your website. Only sites with SSL certificates will display this symbol of security, i.e. HTTPS sites.