The Official CAPTCHA Site
Completely Automated Public Turing Test to Tell Computers and Humans Apart. ... A CAPTCHA is a program that protects ... Get a Free CAPTCHA For Your Site ...
www.captcha.net

CAPTCHA - Wikipedia, the free encyclopedia
Explains how captcha features can keep spammers from signing up for certain ... A common type of CAPTCHA requires that the user type letters or digits from a ...
en.wikipedia.org

What is a CAPTCHA?
A CAPTCHA is a program that can generate and grade tests that humans can pass ... The term CAPTCHA (for Completely Automated Turing Test To Tell Computers and ...
recaptcha.net

CAPTCHA: Information from Answers.com
CAPTCHA ( C ompletely A utomated P ublic T uring test to tell C omputers and H umans A part) A category of technologies used to ensure that a human is
www.answers.com

Free Secure CAPTCHAs
... CAPTCHA For ... a free, secure and easy to install CAPTCHA implementation. ... PHP CAPTCHA Plugin. MediaWiki CAPTCHA Plugin. WordPress CAPTCHA Plugin ...
www.captcha.net

BotDetect CAPTCHA Home
BotDetect ASP.NET & ASP CAPTCHA Components & Controls. ... Lanapsoft (formerly Lanap) BotDetect™ CAPTCHA is an awarded website security ...
captcha.biz

Captcha Creator - PHP Script Package
Professional PHP Captcha Script that generates unique captcha images to stop automated submissions, highly customizable, easy to install and configure.
www.captchacreator.com

captcha.cc - captcha generator
Free, easily embeddable captcha images for any website. ... Captcha Code Generator ... Selecting "auto" means the script will inject the full captcha form. ...
www.captcha.cc

CAPTCHA | drupal.org
Invisible javascript test before captcha fallback. Confirming captcha with "return" key in ... Translated into Spanish the 6.x-2.0 version of the CAPTCHA module ...
drupal.org

HowStuffWorks "How CAPTCHA Works"
CAPTCHA is a security test given to prevent computers from filling out forms on the Internet. ... You've probably seen CAPTCHA tests on lots of Web sites. ...
computer.howstuffworks.com