If you wish to register a domain to make sure that nobody else will take it, however, you haven't built the web site for it yet, you can park it. This is a service that registrar companies offer when a domain name isn't linked to any web or email hosting service. By doing this, you'll be able to protect a brand name, for example, and you'll own the domain in question even though it won't open any content. If you want, you can select some default template that the registrar provides, such as For Sale or Under Construction, or you can forward the domain to a new web address. Your second option is extremely helpful if you own a few domain names, but you want all of them to open the same website. As an illustration, you may 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 address only and the traffic to the other ones will be redirected to it.