CAPTCHA (Completely Automated Public Turing Test To Tell Computers and Humans Apart) is a system designed to differentiate between human visitors to a website and robotic agents. Administrators can validate incoming users with CAPTCHAs and websites can identify whether a user is real or malicious. CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart. It is a tool to differentiate between real users and bots by providing challenges that are easy for humans but hard for computers. Learn about different CAPTCHA types, their advantages and drawbacks, and alternatives. What is a CAPTCHA? A CAPTCHA test is designed to determine if an online user is really a human and not a bot. CAPTCHA is an acronym that stands for "Completely Automated Public Turing test to tell Computers and Humans Apart." Users often encounter CAPTCHA and reCAPTCHA tests on the Internet. CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart. As the name suggests, it’s a challenge designed to separate human users from bots. The original idea was straightforward: computers couldn’t solve certain visual or audio puzzles that humans could.
