I currently have a website which allows our clients with other domains to redirect their domains to our website and use some of our features.

My problem is our clients dont want their clients and customers know that they are being redirected to another site.

So my question is, Is it possible to cloaking (using .HTACCESS or PHP) my domain such that the user will enter our clients' domain and be redirected to our site without the browser showing that they have been redirected?

Thanks