Ironclad CAPTCHA will protect your web site, forum or blog from spam with 100% guarantee
. Due to revolutionary 3D objects counting approach it is unpenetrable by computers and spam robots and will remain so for at least ten years. However, it is very easy to recognize it for real human.
Ironclad CAPTCHA is 100% free and you can use it on any site you like. Installation on PHP- or ASP-based site takes no more than 10 minutes and will result in true unpenetrable defense for your web projects.