What Does This Mean?
A challenge-response test designed to distinguish a human user from an automated bot, usually by asking for something trivially easy for people but difficult for automated scripts.
EXPLAINER
History of Simple Things · original source ↗
EXPLAINER
Waqas Tech Videos · original source ↗
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REAL-WORLD EXAMPLE
"Had to solve four different captchas just to check out on that site."
LORE & ORIGIN
Developed as a foundational anti-bot mechanism once automated spam and scraping made distinguishing human from machine traffic a practical necessity for websites.
EQUIVALENT CONCEPTS IN OTHER LANGUAGES
MENTIONS OVER TIME
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