I just wonder how is the forward with masking really works in all the common cases.
I just found out that the manual way of doing it is that just to put this code
<html>
<head>
<title>yourname</title>
<meta name="description" content="your description">
<meta name="keywords" content="keyword1, keyword2">
</head>
<frameset rows="100%,0" border="0">
<frame src="http://yourforwardingurl" frameborder="0">
<frame frameborder="0">
</frameset>
</html>
does that mean all the provider, registrar (like godaddy) they using the same method?
because if so then I don't know why in the sake of god would I have to wait them do that for me if I can just create a subdomain and put those codes and get it done in a minute rather than wait them activate it for me for 24-48 hours.
I don't have much experience with this but I don't believe that this is a very common way of masking URLs. For one thing, it's very easy to see the actual source of the content. It also seems like it would be a pain to manage. This might be an option if you are hosting a small website and don't have access to the server or a control panel for your domain.
The more common approach is more likely to be something using Apache's mod_proxy (explained here).