Unlike some years back when Internet sites were almost exclusively static, the standard these days is to have a feature-rich, dynamic site. Not many people can build this sort of website from scratch though, hence the handiest solution to have a dynamic website is to use a script application. Many website hosting companies offer script installers you can use to add this sort of an app for each of your domain name or subdomains, so you'll not have to add anything manually. The 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 will be installed is already with the settings required for it to run the way it should on the particular hosting server, so you will not have to adjust any script or account settings. That way you can quickly build one with simply a couple of mouse clicks even though you may have never had a website before.