Unlike some years ago when web sites were almost exclusively static, the standard nowadays is to have a feature-rich, dynamic website. Few people can create this sort of web site completely from scratch though, therefore the most convenient solution to have a dynamic site is to use a script app. A lot of website hosting providers offer script installers which you can use to add this type of an application for each of your domain or subdomains, so you'll not need to install anything manually. The best thing about using an installer tool is the fact that the scripts are available to use in just a couple of minutes and the copy that'll be set up is already with the settings necessary for it to run adequately on the particular hosting server, so you'll not need to adjust any script or account settings. That way you can effortlessly create one with simply a couple of mouse clicks even if you have never had a site before.