Unlike some years ago when Internet sites were almost exclusively static, the standard today is to have a feature-rich, dynamic web site. Not everybody can create such a website from scratch though, hence the simplest solution to have a dynamic website is to use a script application. Many website hosting service providers offer script installers which you can use to add this type of an application for each of your domain name or subdomains, so you will not have to add anything manually. The main advantage of using an installer tool would be that the scripts are available to use within a few minutes and the copy that'll be installed is already with the settings required for it to run efficiently on the particular hosting server, so you will not need to adjust any script or account settings. In this way you can quickly create one with simply a few mouse clicks even when you have never had a website before.