Unlike some years back when websites were almost exclusively static, the standard these days is to have a feature-rich, dynamic website. Few people can create this kind of site completely from scratch though, hence the simplest solution to have a dynamic website is to use a script application. A lot of website hosting service providers offer script installers you can use to add this sort of an app 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 is that the scripts are ready to use within a couple of minutes and the copy that will be set up is already with the settings required for it to run properly on the specific hosting web server, so you'll not have to modify any script or account settings. That way you can easily create one with only a couple of mouse clicks even though you may have never had an Internet site before.