When you have a few domains with different extensions and you want all of them to open the exact same Internet site, you may have the site under one of them and forward the rest. There are several approaches to forward one domain name to another, among them the so-called domain parking. When your hosting package deal permits it, though, it'll be better if you host all the domains and set up a URL redirect, not a domain redirect. The difference between the two is that while a domain is hosted, you may still have content for it, create subdomains, e-mail addresses, etc., while with a parked domain you can't do any of these things. As an illustration, if you are building localized Internet sites under several country-code domains, you'll be able to work on them, but in the meantime, people shall be forwarded to the primary site.