Unlike some years ago when Internet sites were almost exclusively static, the standard these days is to have a feature-rich, dynamic website. Not everybody can create this sort of web site completely from scratch though, hence the handiest solution to have a dynamic site is to use a script application. Many hosting service providers offer script installers that can be used to add this kind of an application for any of your domain name or subdomains, so you will not have to install anything manually. The advantage of using an installer tool is that the scripts are ready to use in a few minutes and the copy that'll be installed is already with the settings necessary for it to run adequately on the specific hosting server, so you'll not need to adjust any script or account settings. That way you can effortlessly create one with only a couple of mouse clicks even when you have never had a site before.