There are two services you need for a working website - a domain name plus a website hosting plan for it. Any time you type the domain address in your web browser, you see the content that is uploaded in the hosting account, but if that Internet domain isn't linked to such an account or to an email service, it is parked. To put it differently, the domain address is registered and you are 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 can be directed to any other URL of your choice. The main advantage of parking a domain name is that you can keep it and make sure that no one else will take it. At the same time, it will not block a slot for a hosted Internet domain inside your account. You may also park domain names if you have a .com, for instance, 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.