Unlike some years ago when websites were almost exclusively static, the standard nowadays is to have a feature-rich, dynamic Internet site. Not many people can build such a site from scratch though, so the most convenient solution to have a dynamic website is to use a script app. Lots of hosting companies offer script installers you can use to add this sort of an app for each of your domain 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 ready to use in just a few minutes and the copy which will be set up is already with the settings necessary for it to run the way it should on the specific hosting server, so you will not need to change any script or account settings. That way you can easily create one with simply a couple of clicks even though you may have never had a website before.