Managing a site includes many other procedures apart from registering a domain and linking it to a few websites which are uploaded on a hosting server. Each one of them is important and impacts the user experience - both for you as the site owner and for your visitors. For example, a script-driven site uses a database, files are uploaded through FTP, and communication with clients is done via email, although some services demand certain domain records to be created. Each one of these things is important and in case any of them is hard to handle or is simply missing from the set of services your account comes with, the functionality of your site can be limited, in addition the overall management of the Internet site may be very aggravating if you can't execute some task.