Unlike some years ago when sites were almost exclusively static, the standard nowadays is to have a feature-rich, dynamic site. Few people can create this sort of website from scratch though, so the most convenient solution to have a dynamic site is to use a script application. Many web hosting service providers offer script installers you can use to add this sort of an app for any of your domain name or subdomains, so you will not need to add anything manually. The main advantage of using an installer tool is the fact that the scripts are available to use in just a few minutes and the copy that'll be set up is already with the settings necessary for it to run properly on the specific hosting server, so you will not need to change any script or account settings. That way you can effortlessly create one with only a couple of mouse clicks even when you have never had a website before.