When you have a few domain names with different extensions and you need all of them to open the very same Internet site, you can have the Internet site under one of them and forward the rest. There are different methods to forward one domain to another, among them the so-called domain parking. When your hosting package allows it, though, it'll be better if you host all of the domains and create a URL redirect, not a domain redirect. The difference between the two is that while a domain is hosted, you could still have content for it, set up subdomains, e mail addresses, and so on., while with a parked domain you cannot do any of these things. As an illustration, if you are building localized Internet sites under different country-code Internet domain names, you will be able to work on them, but meanwhile, people will be forwarded to the main website.