If you'd like to register a domain to make certain that no one else will take it, but you have not created the site for it yet, you can park it. It's a feature that registrar companies offer when a domain name is not connected to any web or e-mail hosting service. By doing this, you can protect a brand name, for instance, and you'll own the domain address in question even though it will not load any content. If you'd like, you can select some default template that the registrar provides, such as For Sale or Under Construction, alternatively you can direct the domain name to a new web address. The second option is very helpful if you own a few domains, but you want every one of them to open the same site. For example, you can register domain.net and domain.org, then park them and direct them to domain.com. In this example, you will need hosting for the third domain address only and the traffic to the other ones will be redirected to it.