If you want to register a domain to make sure that no one else is going to take it, but you have not developed the web site for it yet, you can park it. This is a feature that registrar companies offer whenever a domain is not connected to any web or e mail hosting service. That way, you can protect a brand name, for example, and you'll own the domain name in question even though it won't load any content. If you wish, you can pick some default template that the registrar offers, such as For Sale or Under Construction, you can also direct the domain name to another web address. The second option is extremely helpful in case you own a number of domains, but you want all of them to open the same site. As an example, you may register domain.net and domain.org, then park them and forward them to domain.com. In this example, you're going to need hosting for the third domain address only and the traffic to the other ones is going to be redirected to it.