Unlike some years ago when Internet sites were almost exclusively static, the standard currently is to have a feature-rich, dynamic web site. Not everybody can create this type of web site from scratch though, hence the most convenient solution to have a dynamic website is to use a script application. Many hosting service providers offer script installers which you can use to add this type of an application for any of your domain or subdomains, so you'll not have to add anything manually. The advantage of using an installer tool is that the scripts are available to use within a couple of minutes and the copy that will be set up is already with the settings necessary for it to run the way it should on the specific hosting server, so you will not have to modify any script or account settings. That way you can effortlessly build one with only a couple of mouse clicks even when you have never had a website before.