CAPTCHA (Completely Automated Public Turing Test To Tell Computers and Humans Apart) is a program that works in conjunction with Pricefalls.com. The program is designed to determine whether or not incoming traffic is from a trusted source and not caused by bots. The program produces a Turing test which requests that the user read the image displayed (often obstructed in some way) and type it into the available field. Once this is successfully completed the user is then redirected to Pricefalls.com.
Link for reference: CAPTCHA