If you wish to register a domain to ensure that no one else will take it, however, you have not built the web site for it yet, you could park it. This is a feature that registrar companies offer whenever a domain isn't connected to any web or e mail hosting service. This way, you can protect a brand name, for example, and you will own the domain name in question even though it will not open any content. If you want, you can select some default template that the registrar provides, such as For Sale or Under Construction, alternatively you can forward the domain to a different web address. The second option is very useful if you own a few domain names, but you want every one of them to open the same website. For example, you can register domain.net and domain.org, then park them and forward them to domain.com. In this example, you will need hosting for the third domain name only and the traffic to the other ones will be redirected to it.