CAPTCHA
ཀེབ་ཆ།
验证码
CAPTCHA · ཀེབ་ཆ། · 验证码 · KAP-chuh · challenge-response test · bot check · Internet · bots · security · formsInternetchallenge-response test bot check/KAP-chuh/
Also known as: challenge-response test, bot check
Last updated August 8, 2026
Definition
A CAPTCHA is a challenge designed to tell humans from automated bots, often by solving puzzles, selecting images, or completing invisible risk checks.
Real-World Example
Before creating an account, a site may ask you to select all squares with traffic lights to block bulk fake signups.
References
Related terms
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