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 type of website completely from scratch though, hence the most convenient solution to have a dynamic site is to use a script application. Many hosting service providers offer script installers that you can use to add this sort of an application for each of your domain or subdomains, so you will not have to set up anything manually. The main benefit of using an installer tool would be that the scripts are ready to use in a couple of minutes and the copy that'll be installed is already with the settings necessary for it to run adequately on the particular hosting server, so you will not have to modify any script or account settings. In this way you can effortlessly create one with just a couple of clicks even if you have never had a website before.