If you want to register a domain to make certain that nobody else is going to take it, but you haven't developed the website for it yet, you may park it. It's a feature that registrar companies offer if a domain address is not linked to any web or e-mail hosting service. This way, you'll be able to protect a brand name, for instance, and you'll own the domain address in question although it will not open any content. If you'd like, you may choose some default template that the registrar offers, like For Sale or Under Construction, you can also direct the domain to an alternative web address. The second option is very helpful if you own a few domains, but you want every one of them to open the same site. As an illustration, you may register domain.net and domain.org, then park them and direct 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 will be redirected to it.