If you'd like to register a domain name to make sure that nobody else will take it, however, you haven't developed the website 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 are able to protect a brand name, for instance, and you will own the domain in question although it will not load any content. If you want, you can select some standard template that the registrar offers, such as For Sale or Under Construction, or you can forward the domain name to a new web address. Your second option is extremely helpful in case you own a few domains, but you want every one of them to open the same site. For example, you may register domain.net and domain.org, then park them and direct 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.