Masked domain forwarding — available only to Yahoo! Domains and Business Email customers — allows you to redirect your domain name to another web site, but conceal the web address of the destination web site.
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, such as http://www.geocities.com/n3dqu/10_widget-designs/index.html.