There are 2 services you need for a functioning web site - a domain plus a web hosting plan for it. Each time you type the Internet domain in your browser, you see the content that’s uploaded inside the hosting account, but if that domain is not linked to such an account or to an e-mail service, it is parked. Put simply, the Internet domain is registered and you're its owner, but it does not have any content of its own. Rather, it can open either a pre-made “Under Construction / For Sale” webpage from the registrar company, or it may be directed to some other URL of your choice. The main benefit of parking a domain is that you can keep it and ensure that nobody else will take it. Meanwhile, it won't occupy a slot for a hosted domain address inside your account. You can also park domain names if you have a .com, for example, and you register domain addresses with other extensions like .net, .org or country-code ones to forward them to the main web site as a way to protect a brand name.