Unlike some years back when sites were almost exclusively static, the standard nowadays is to have a feature-rich, dynamic web site. Few people can create such a web site completely from scratch though, so the most convenient solution to have a dynamic site is to use a script application. Lots of web hosting service providers offer script installers which you can use to add this sort of an application for any of your domain name or subdomains, so you will not have to set up anything manually. The best thing about using an installer tool is that the scripts are available to use within a few minutes and the copy which will be set up is already with the settings necessary for it to run properly on the particular hosting server, so you'll not need to modify any script or account settings. That way you can quickly build one with only a couple of mouse clicks even when you have never had an Internet site before.