I have been looking at ways to prevent spam bots from posting, regstering and performing actions on my site. Initially, I thought about implementing ReCAPTCHA using its API. However, I have found ...
More and more websites that use CAPTCHAs have started to cater for visually-impaired users who cannot solve a visual (text-based) CAPTCHA by providing an audio CAPTCHA. What I find bizarre is that ...