Unlike some years ago when web sites were almost exclusively static, the standard nowadays is to have a feature-rich, dynamic web site. Not everybody can create this sort of site from scratch though, therefore the handiest solution to have a dynamic site is to use a script application. A lot of web hosting providers offer script installers which you can use to add this type of an application for any of your domain or subdomains, so you will not have to set up anything manually. The benefit of using an installer tool is the fact that the scripts are ready to use within a couple of minutes and the copy that'll be set up is already with the settings necessary for it to run correctly on the particular hosting server, so you'll not need to change any script or account settings. This way you can quickly create one with simply a few clicks even though you may have never had a website before.