A free, secure and accessible CAPTCHA implementation is available from the reCAPTCHA project. Easy to install plugins and controls are available for ... www.captcha.net
Feb 27, 2009 ... Securimage is an open-source free PHP CAPTCHA script for generating complex images and CAPTCHA codes to protect forms from spam and abuse. ... woork.blogspot.com
Securimage is an open-source free PHP CAPTCHA script for generating complex images and CAPTCHA codes to protect forms from spam and abuse. www.phpcaptcha.org
Free CAPTCHA-Service. Why http://captchas.net? This server provides CAPTCHA images and audio files you can use in html-forms. CAPTCHA images can prevent ... captchas.net
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