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Captcha

Ein Captcha wird verwendet, um festzustellen, ob ein Mensch oder eine Maschine einbezogen ist. In der Regel dient dies zur Prüfung, von wem Eingaben in Internetformulare erfolgt sind, weil Roboter hier oft missbräuchlich eingesetzt werden. Wikipedia
Weitere Fragen
A CAPTCHA is a program that protects websites against bots by generating and grading tests that humans can pass but current computer programs cannot.
A CAPTCHA is a type of challenge–response test used in computing to determine whether the user is human in order to deter bot attacks and spam. This CAPTCHA ...
CAPTCHA is an acronym that stands for "Completely Automated Public Turing test to tell Computers and Humans Apart." Users often encounter CAPTCHA and reCAPTCHA ...
CAPTCHA helps protect you from spam and password decryption by asking you to complete a simple test that proves you are human and not a computer trying to break ...
reCAPTCHA protects your website from fraud and abuse without creating friction. reCAPTCHA uses an advanced risk analysis engine and adaptive challenges.
CAPTCHA stands for the Completely Automated Public Turing test to tell Computers and Humans Apart. CAPTCHAs are tools you can use to differentiate between real ...
CAPTCHA stands for "completely automated public Turing test* to tell computers and humans apart." It refers to various authentication methods that validate ...
CAPTCHAs are tests used by websites and online services to determine whether a user is human or part of an automated attack. Get full details here.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse. A “CAPTCHA” is a turing test to tell human and bots apart.
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.