Protect your PayPal order buttons and hide your product download URL that is available to any visitor that views the source of your sale page - without this protection, anyone viewing the source code of your page can go directly to your thank you page - skipping the payment completely! Allow automated downloads using PayPal (without installing their complicated verification system) saving you hours each day, and giving your visitors the instant gratification of immediate delivery Protect your ClickBank thank you/product download page .. checking to see whether or not the visitor followed the link directly from ClickBank (and if they didnt, you can specify exactly what page to display to them .. your sales letter or a specific page of your choice) Stop digital freeloaders from downloading your products without paying