Unlike some years back when web sites were almost exclusively static, the standard currently is to have a feature-rich, dynamic site. Few people can build this sort of web site from scratch though, hence the handiest solution to have a dynamic site is to use a script application. Lots of hosting service providers offer script installers that you can use to add this sort of an application for any of your domain or subdomains, so you'll not need to install anything manually. The key advantage 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 installed is already with the settings required for it to run correctly on the specific hosting web server, so you will not have to modify any script or account settings. In this way you can effortlessly build one with only a few mouse clicks even if you have never had a website before.