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I don't know how relevant it is to your situation, but I'd just like to share my CAPTCHA solution. There is no CAPTCHA on registration. Instead, users are required to play a little bit of the game that they have signed up for, before they will be allowed to send message and post on the forums. This means that anyone wishing to bot their way onto the site ...


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Google have RECAPTCHA the idea being you check a tick box and this verifies you as human. Google RECAPTCHA Using small games to confirm a human identity could be used, however this is said to make a site feel more unprofessional on a website not targeted at a younger audience. Asking the user a question and a correct answer validates the user. There ...


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Besides math- and image- captchas there is a rather new approach from google that recently made its rounds through various newsletters. They call it "reCAPTCHA" and its based on the idea of seperating bots from humans by a single click. While I still don't know much about it myself yet I still hope that this approach will some day make it to the real world ...


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Captchs Usability Captchas have a series of issues when it comes to usability. to name a few ; They interrupt the user’s workflow and they are inaccessable to people with visual disabilities they are also hard to decipher in normal circumstances. so here is my suggestion: Ask the user a simple question or a couple of generic questions, for example what ...


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Try making a capcha, but making the images display a simple math problem. This way, it will be harder for a robot to do, while the image can be less distorted and easier for a human.



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