A dedicated IP address is an exclusive numeric identifier on the web that is allotted to a device or a website. Shared hosting servers usually have a number of websites under the same IP, while dedicated ones use their own IPs which aren't shared with others. Even if you use a regular shared account, however, you're able to acquire a dedicated IP address that will be in use only by your websites - one or a few. Since this can add up to the speed of yoursite, it's much more likely that the website will get superior search engine result rankings. Of course, that isn't the only factor, but it can help you get more website visitors and potential customers. The dedicated IP is also required if you wish to encode the information exchanged between a website and its visitors using an SSL certificate.