Secure Sockets Layer, or SSL, is a protocol used to encode the info exchanged between a web server and its users. The practical application of using an SSL is to protect the info that visitors submit on your site - a login page, a payment page if you run an Internet store, and so on. Any information they type in in any box on the website will be submitted safely to the server, so their login or payment details will be protected from being accessed by unauthorized individuals. Typically, an SSL certificate requires a dedicated IP address to be installed, meaning that the overall cost for your online presence shall be higher. While this might not be a problem for a larger company, 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. This is the key reason why we have taken advantage of an extension known as Server Name Indication (SNI) and we've made it possible to use a shared server IP address to set up an SSL certificate.