Web search results for capcha anti spam

  • Because other computers are unable to solve the CAPTCHA, any user entering .... Since Gmail and Yahoo! are unlikely to be blacklisted by anti-spam systems, ...
    http://en.wikipedia.org/wiki/CAPTCHA
  • Apr 20, 2009 ... List of 34 free Captcha scripts and anti-spam services you can use to provide protection from spam bots. They are categorized into hosted ...
    http://www.netwaver.com/35/34-free-captcha-scripts-and-anti-spam-services/
  • PHP Anti-Spam captcha example script to secure online forms and scripts from spammers and automated robots.
    http://www.askapache.com/security/php-captcha-anti-spam-example.html
  • HTML Form with Captcha Anti-spam protection - Sample - Style 2. You don't need to be a programmer to implement the script. Just insert a few lines of our ...
    http://www.snaphost.com/captcha/
  • Worms and Spam. CAPTCHAs also offer a plausible solution against email worms and spam: "I will only accept an email if I know there is a human behind the ...
    http://www.captcha.net/