Secure Sockets Layer, or SSL, is a protocol employed to encrypt the data exchanged between a hosting server and its users. The practical application of using an SSL is to protect the info that visitors submit on your Internet site - a login page, a payment page if you run an online store, etc. Any data they type in in any box on the site will be submitted safely and securely to the server, so their login or payment information will be protected from being accessed by unauthorized individuals. Typically, an SSL certificate needs a dedicated IP address to be installed, meaning that the overall cost for your online presence will be higher. While this might not be an issue for a larger enterprise, it might matter for a non-profit organization or a small online store which doesn't generate big profits if additional money should be spent. That's the main reason why we have taken advantage of an extension referred to as Server Name Indication (SNI) and we've made it possible to use a shared server IP address to install an SSL certificate.