Unlike some years ago when Internet sites were almost exclusively static, the standard nowadays is to have a feature-rich, dynamic web site. Not everybody can build such a site from scratch though, hence the most convenient solution to have a dynamic site is to use a script app. A lot of hosting providers offer script installers you can use to add this kind of an application for any of your domain or subdomains, so you will not have to install anything manually. The best thing about using an installer tool is the fact that the scripts are ready to use in a couple of minutes and the copy which will be installed is already with the settings needed for it to run efficiently on the particular hosting server, so you will not have to change any script or account settings. This way you can quickly create one with just a few clicks even if you have never had a website before.