If you'd like to register a domain to make certain that no one else will take it, however, you haven't created the site for it yet, you can park it. That is a service that registrar companies offer if a domain isn't connected to any web or e mail hosting service. That way, you'll be able to protect a brand name, for example, and you'll own the domain address in question even though it will not open any content. If you'd like, you can choose some default template that the registrar offers, like For Sale or Under Construction, you can also forward the domain name to a new web address. Your second option is very helpful in case you own a few domain names, but you want all of them to open the same site. For example, you could register domain.net and domain.org, then park them and forward them to domain.com. In this example, you'll need hosting for the third domain only and the traffic to the other ones will be redirected to it.