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 such a site from scratch though, hence the handiest solution to have a dynamic site is to use a script application. Lots of website hosting companies offer script installers you can use to add this kind of an app for any of your domain or subdomains, so you will not have to add anything manually. The advantage of using an installer tool is the fact that the scripts are available to use within a couple of minutes and the copy that will be installed is already with the settings necessary for it to run properly on the specific hosting web server, so you'll not have to modify any script or account settings. That way you can effortlessly create one with just a few clicks even though you may have never had a site before.