Provide an accessible alternative if you must use a CAPTCHA | 456 Berea Street - 1 views
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Sherita Locklear on 28 Jan 12In several recent online and offline discussions on comment spam and other automated, improper use of forms, I have seen or heard people suggest using image-based CAPTCHAs (you know, those images of distorted letters and numbers) to prevent spambots and other programs from successfully submitting forms. Requiring the user to interpret an image of distorted characters and then enter those characters into a text input field may seem like a nice idea at first. Deciphering those characters for verification can be confusing for most of us, but for the blind who depend on screen readers, it is impossible for those programs to intrepret such mumbo jumbo.