Unlike some years ago when websites were almost exclusively static, the standard currently is to have a feature-rich, dynamic Internet site. Few people can build this sort of site completely from scratch though, therefore the simplest solution to have a dynamic site is to use a script app. Many website hosting service providers offer script installers that you can use to add this kind of an app for each of your domain or subdomains, so you'll not have to set up anything manually. The key advantage of using an installer tool is the fact that the scripts are available to use within a couple of minutes and the copy that will be set up is already with the settings needed for it to run the way it should on the particular hosting server, so you'll not need to modify any script or account settings. That way you can quickly create one with simply a couple of mouse clicks even if you have never had a website before.