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 create this sort of website from scratch though, therefore the simplest solution to have a dynamic website 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'll not have to install anything manually. The advantage of using an installer tool is the fact that the scripts are ready to use in just a few minutes and the copy that'll be set up is already with the settings needed for it to run correctly on the particular hosting web server, so you will not need to modify any script or account settings. That way you can quickly build one with only a couple of mouse clicks even though you may have never had a site before.