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Re: example of accessible captcha?

From: Adam Powell <adam@adaminfinitum.com>
Date: Tue, 31 Jan 2017 17:13:59 -0500
Message-ID: <CALsiKnPirTux93-LxWHG0w=mVRsyn5+W=D0QYn_sAY7EOsW9QQ@mail.gmail.com>
To: David Best <davebest@cogeco.ca>
Cc: Karen Lewellen <klewellen@shellworld.net>, WAI Interest Group <w3c-wai-ig@w3.org>
Hi All,

This page has one on a contact form I created:


It's similar to the examples above in that it uses logic and text but I
have given it my own twist in that I use a question about coin

I wouldn't use that exact example on sites I expected would get
international traffic, "dime" is probably not clear to non-native speakers.
In those cases I usually use something like "thirteen if you take away six"
or "19 minus twelve leaves"

I used a WordPress plugin called Ninja Forms and one of the things I really
like is when you add an "anti-spam" field to a form, it allows the form
author to create any question they want and then provide any correct answer
they want so it gives a lot of flexibility in making language/logic based
captchas. You could use it to implement any of the techniques on this

That form also has a honeypot (field that's hidden with CSS or JS) which is
a great way to fight spam. It has a label telling users not to fill it in
so it should be accessible as well.

That combination is really effective at fighting spam but doesn't seem to
cause people problems.

Hope that helps.
​Adam Powell

On Tue, Jan 31, 2017 at 4:07 PM, David Best <davebest@cogeco.ca> wrote:

> Karen, check out the following websites:
> User account | Alliance for Equality of Blind Canadians
> http://www.blindcanadians.ca/user/register
> Contact Us | T-Base Communications
> http://www.tbase.com/webform/contact-us
> Accessible University Mock Site - Accessible Version
> http://www.washington.edu/accesscomputing/AU/after.html
> David
> -----Original Message-----
> From: Karen Lewellen [mailto:klewellen@shellworld.net]
> Sent: January 31, 2017 02:11 PM
> To: w3c-wai-ig@w3.org
> Subject: example of accessible captcha?
> Greetings all,
> I seek a site that uses a captcha which does not involve an image.  by
> which I
> mean one using a math problem, or some other  interaction that differs
> from the
> letter number things often used.
> Ideas?
> Thanks,
> Karen
Received on Tuesday, 31 January 2017 22:14:54 UTC

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