When you have several domains with different extensions and you would like all of them to open the same Internet site, you could have the site under one of them and redirect the rest. There are various ways to forward one Internet domain name to another, such as the so-called domain parking. If your web hosting plan permits it, though, it'll be better if you host each of the domains and create a URL redirect, not a domain redirect. The real difference between the two is that while a domain address is hosted, you may still have content for it, set up subdomains, e-mail addresses, and so on., while with a parked domain you are unable to do any of these things. As an example, if you are building localized sites under various country-code Internet domain names, you shall be able to work on them, but in the meantime, visitors shall be forwarded to the main website.