http://en.wikipedia.org/wiki/CAPTCHA It is an acronym based on the word "capture" and standing for "Completely Automated Public Turing test to tell Computers and Humans Apart".
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Honeypot captchas and accessibility
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 ...
5
votes
7answers
358 views
When exactly is a CAPTCHA system a good idea?
While I understand this is probably a very broad question, I'm trying to figure out exactly when adding a CAPTCHA becomes a necessary requirement for a site. I get the sense a lot of clients ask me to ...
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2answers
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Could a funny CAPTCHA be more pleasant?
I think one way to make CAPTCHA be more acceptable is to make it funny, but for some reason most CAPTCHA do not do this. Would this be seen as unprofessional or could this be a good way to make a ...
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2answers
130 views
Are there instances when Captcha / Human validation is more necessary during registration?
I am not particularly asking about whether or not Captcha within itself is good UX, but a more generalized question as to when human validation truly makes a difference in terms of a website's ...
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3answers
288 views
Has Captcha become common knowledge?
I am doing a business site for a web company, and was wondering if Captcha has become so well-known, that it no longer needs an explanation ?
Right now there is only a input box, the captcha image ...
5
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6answers
362 views
Asirra or Captcha?
I've just heard about "Asirra" and tried it. But, I am a little bit confusing about using. What is your choice for usability?
Asirra or CAPTCHA, and why?
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5answers
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Can we do better than CAPTCHA?
There are a variety of different forms of CAPTCHA and other strategies in order to prevent spam. To briefly list a few:
Simple math or word questions.
Obfuscated text.
JavaScript-based CAPTCHAs.
...
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9answers
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barebone registration: is password repitition and captcha really essential?
If you design a barebone registration form which only requires
email address and password as essentials can you omit the password repetition and captcha without too much technical trouble?
I ...
