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Discussion in 'SEO and Marketing' started by Mamina Sahu, Sep 12, 2018 at 3:41 AM.
Completely Automated Public during Test to tell Computers and Humans Apart
a computer program or system intended to distinguish human from machine input, typically as a way of thwarting spam and automated extraction of data from websites.
CAPTCHA is a challenge-response test that ensures that a response during a user logon is not computer-generated but instead is truly entered by a human hand, by requiring a user to manually enter a small amount of text displayed in an image to help prevent automated registration and fraud.