There are 2 services that you need for a functioning web site - a domain and a web hosting plan for it. Each time you type the domain in your browser, you see the content that is uploaded within the web hosting account, but if that Internet domain isn't linked to such an account or to an email service, it is parked. In other words, the Internet domain is registered and you are its owner, but it lacks content of its own. Instead, it can open either a pre-made “Under Construction / For Sale” page from the registrar company, or it could be directed to any other URL of your choice. The advantage of parking a domain name is that you can keep it and make sure that no one else is going to take it. In the meantime, it's not going to block a slot for a hosted domain name inside your account. In addition, you can park domain names if you have a .com, for instance, and you register domains with other extensions like .net, .org or country-code ones to forward them to the main website in order to protect a brand name.