Unlike some years back when sites were almost exclusively static, the standard these days is to have a feature-rich, dynamic website. Not everybody can build this kind of site from scratch though, hence the simplest solution to have a dynamic site is to use a script application. Lots of hosting service providers offer script installers that can be used to add this type of an app for each of your domain or subdomains, so you'll not have to add anything manually. The main benefit of using an installer tool is that the scripts are available to use in just a few minutes and the copy that will be set up is already with the settings necessary for it to run properly on the specific hosting server, so you'll not have to change any script or account settings. In this way you can effortlessly build one with only a few mouse clicks even if you have never had an Internet site before.