In case you have a lot of domain names with different extensions and you would like all of them to open exactly the same site, you can have the site under one of them and forward the others. There are different ways to forward one domain to another, such as the so-called domain parking. When your web hosting package deal allows 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 name is hosted, you could still have content for it, set up subdomains, e-mail addresses, and so forth., while with a parked domain you can't do any of those things. As an illustration, if you're building localized websites under different country-code Internet domain names, you shall be able to work on them, but at the same time, visitors will be forwarded to the main Internet site.