I'm trying to figure out how to beat the robot scripts at their own game without using Re-Captcha.
What I would like to do in PHP is determine if the previous URL is from the same website and page cart.php, (i.e. https://www.thissite.com/cart.php) since I think they are submitting the form through robot script into the address page.
Is my theory right? Will this actually work?
If the previous URL is not matching the website address, dump them to google.com. Can this redirection be done without using headers?