When you’re type the IP address, then it’s redirect direct to your site, it show the Dedicated IP is install successfully.
What do you think when an Dedicated IP with be increase the rank on Search machine?
You’re right. Because when you using a shared hosting, this mean your site using the same IP with have a lot of site on current server. But we don’t know many site are spam and Search Machine always have algorithms to block these or lowest the ranking.
So, we need a unique IP Address for your site, it’s keeping clear and minimize risks when it’s online.