There are two services you'll need for a working web site - a domain name and a website hosting plan for it. When you type the Internet domain in your browser, you see the content that’s uploaded within the hosting account, but if that Internet domain is not linked to such an account or to an email service, it is parked. To put it differently, the domain is registered and you're its owner, but it doesn't have any content of its own. Instead, it can open either a pre-made “Under Construction / For Sale” webpage from the registrar company, or it may be forwarded to some other URL of your choice. The main advantage of parking a domain is that you can keep it and make certain that nobody else is going to take it. At the same time, it will not take a slot for a hosted domain inside your account. You could also park domain names if you have a .com, for example, and you register domain names with other extensions like .net, .org or country-code ones to direct them to the main site so as to protect a brand name.