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- CAPTCHA - Wikipedia
A CAPTCHA ( ˈkæp tʃə KAP-chə) is a type of challenge–response Turing test used in computing to determine whether the user is human in order to deter bot attacks and spam [1] The term was coined in 2003 by Luis von Ahn, Manuel Blum, Nicholas J Hopper, and John Langford [2]
- reCAPTCHA | Google for Developers
reCAPTCHA is a free service that protects your site from spam and abuse It uses advanced risk analysis techniques to tell humans and bots apart reCAPTCHA v3 helps you detect abusive traffic
- How CAPTCHAs work | What does CAPTCHA mean? - Cloudflare
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
- What is CAPTCHA? - IBM
CAPTCHA stands for "completely automated public Turing test* to tell computers and humans apart " It refers to various authentication methods that validate users as humans, not bots, by presenting a challenge that is simple for humans but difficult for machines
- The Official CAPTCHA Site
CAPTCHA: Telling Humans and Computers Apart Automatically A CAPTCHA is a program that protects websites against bots by generating and grading tests that humans can pass but current computer programs cannot
- CAPTCHA: What It Is, How to Solve It, and Why It Matters
In simpler terms, it's a test designed to determine whether the user is a human or a bot Websites use CAPTCHA to prevent spam, protect against automated attacks, and ensure that only real users interact with their services
- What is a CAPTCHA How CAPTCHAs Work - DataDome
CAPTCHAs were designed to shield and protect websites from malicious bots What is a CAPTCHA? The acronym CAPTCHA stands for “Completely Automated Public Turing Test to Tell Computers and Humans Apart” It’s a challenge-response test websites use to quickly differentiate real human users from bots
- What is CAPTCHA? Why Do Websites Still Use CAPTCHA
CAPTCHA, which stands for “Completely Automated Public Turing test to tell Computers and Humans Apart,” is a tool that many websites use to distinguish between real human users and automated bots
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