Secure Sockets Layer, or SSL, is a protocol that is used to encrypt the data exchanged between a server and its users. The practical application of using an SSL is to protect the data which site visitors submit on your Internet site - a login page, a payment page if you run an online store, etc. Any info they enter in any box on the Internet site shall 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, which implies the overall cost for your presence online will be higher. While this might not exactly be an issue for a larger business, it might matter for a non-profit organization or a small online shop which does not generate big profits if additional money should be spent. This is the reason why we've taken advantage of an extension known as Server Name Indication (SNI) and we have made it possible to use a shared server IP address to install an SSL certificate.