Unlike some years ago when sites were almost exclusively static, the standard today is to have a feature-rich, dynamic website. Not many people can build 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. Many hosting providers offer script installers which can be used to add such an app for any of your domain name or subdomains, so you'll not need to set up anything manually. The benefit of using an installer tool would be that the scripts are available to use in a couple of minutes and the copy which will be set up is already with the settings required for it to run the way it should on the particular hosting web server, so you'll not have to adjust any script or account settings. This way you can effortlessly build one with only a few clicks even though you may have never had a website before.