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After recaptcha, its the time of NUCaptcha. Its basically an animation showing random words and a RED word which is the captcha to verify that the things entered are done by a human. The animation can be used for advertising purposes. There are lots of API’s and examples in the official site which includes PHP, Java, .NET examples and WordPress plugin.
As per the official site
“ Built on the NuCaptcha Security Platform, Engage is a high impact video advertising captcha solution that enables publishers to generate revenue from previously un-monetized space. One security feature of the NuCaptcha Security Platform is the Animation System. This helps NuCaptcha to be both the most secure and easiest to use Captcha system available. Another security feature is ourBehavior Analysis System. This gives easier Captchas to legitimate users and progressively more secure Captchas to attackers. NuCaptcha also employs captcha best practices to help ensure our Captchas are secure. “
NuCaptcha Engage from Christopher Bailey on Vimeo.
I have installed NUcaptcha on this site, you can see that when you submit a comment using the comment form below.
You can also embed NUCaptcha example in web pages. See below. Hope this will help us to come across less spam.
NuCaptcha Demo
