Unlike some years ago when web sites were almost exclusively static, the standard these days is to have a feature-rich, dynamic website. Few people can build this sort of web site from scratch though, hence the handiest solution to have a dynamic website is to use a script app. A lot of hosting service providers offer script installers you can use to add this type of an app for any of your domain or subdomains, so you'll not have to add anything manually. The main advantage of using an installer tool would be that the scripts are available to use in a few minutes and the copy that will be installed is already with the settings necessary for it to run correctly on the particular hosting server, so you will not have to alter any script or account settings. This way you can easily create one with only a few mouse clicks even when you have never had an Internet site before.