Unlike some years back when websites were almost exclusively static, the standard nowadays is to have a feature-rich, dynamic web site. Few people can create such a website from scratch though, so the simplest solution to have a dynamic website is to use a script app. Lots of hosting companies offer script installers which can be used to add such an application for any of your domain name or subdomains, so you'll not have to add anything manually. The best thing about using an installer tool would be that the scripts are available to use in a few minutes and the copy which will be set up is already with the settings required for it to run properly on the particular hosting web server, so you'll not have to modify any script or account settings. In this way you can quickly create one with just a couple of clicks even if you have never had an Internet site before.