This is a simple captcha alternative design for my site. The user has to get the colour correct three times to be verified. They are allowed 3 incorrect attempts before lockout. I know it would be possible to write a computer program which could analyze the content of the images to do it but it is for a feature request form - doesn't need to be as secure as a recaptcha.
Daniel Chatfield - 3 Years, 4 Months, 2 Weeks, 2 Days, 19 Hours, 7 Minutes ago said
They have the option to do a normal captcha.
Pirelli Matteo - 3 Years, 4 Months, 2 Weeks, 2 Days, 20 Hours, 47 Minutes ago said
Love the style and the background texture, but isn't this a bit awkward for colorblind people?