All devices on the Web are recognized by a specific number called an IP address, such as 18.104.22.168. When you have a site, the domain that you type in order to open it is to save you time, yet the server where your website files are still has an IP address. Due to the fact that there're far more sites and devices than there are IP addresses, all of the shared hosting servers have a number of sites under the very same IP, while with a dedicated server you'll be given a dedicated IP too. Even in the first case though, you're able to obtain a dedicated IP for your sites and host them on a shared server. One benefit would be that you will enjoy superior search engine rankings because a dedicated IP often means a quicker loading site. Also, you need such an IP when you plan to obtain an SSL certificate for your website and protect the info that visitors submit on it.