In standard forwarding, visitors will not see the original domain name they clicked or typed in the address box at the top of their browsers when they reach the destination site; the destination domain will be displayed. With masked forwarding, your visitors will see the original domain name when they reach the destination.
You can use masked domain forwarding when you want to hide a web address that may not be user-friendly.
Now you can put any domain name to work, whether you've built a site for it or not. Just select a domain name (or names), add forwarding, and any visitor who types in that name will be redirected to the existing site you designate.
Forwarding is especially useful if you have a site with a long, complicated address. Now you can just register a simpler domain name (easily done using one of the less common top level domains, like .BIZ instead of .COM, for example) and then forward it. It's that easy.
When you just use forwarding, the forwarding address will not appear in the browser's address field after the forwarding is completed. When you add masking, the forwarding address will always stay in the browser's address field and hide the real destination's address.
In addition to the URL, the Mask Meta Tags feature allows you to enter a title, plus description and keywords Meta tag information for the masked domain. Title and Meta tag information is important to a Web site's search engine ranking, but does not influence how a Web site is being displayed.