Secure Sockets Layer, or SSL, is a protocol that is used to encrypt the data exchanged between a hosting server and its users. The practical application of using an SSL is to secure the information that customers submit on your site - a login page, a payment page if you run an online store, and so forth. Any data they input in any box on the site will be submitted safely to the server, so their login or payment data will be protected from being accessed by unauthorized individuals. Usually, an SSL certificate needs a dedicated IP address to be set up, which suggests the overall cost for your online presence shall be bigger. While this might not be a problem for a larger business, it may matter for a non-profit organization or a small online store which does not generate big income if additional money should be spent. This is the reason why we have taken advantage of an extension called Server Name Indication (SNI) and we have made it possible to use a shared server IP address to install an SSL certificate.