There are 2 services you need for a working site - a domain name and a web hosting plan for it. Each time you type the Internet domain in your browser, you see the content that’s uploaded in the web hosting account, but if that domain address is not linked to such an account or to an e-mail service, it's parked. To put it differently, 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 can be directed to any other URL of your choice. The main advantage of parking a domain address is that you can keep it and be sure that no one else is going to take it. Meanwhile, it will not occupy a slot for a hosted Internet domain in your account. You may also park domains if you have a .com, for example, and you register domain names with other extensions such as .net, .org or country-code ones to forward them to the main site in order to protect a brand name.