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RE: Accessible Captcha

From: Srinivasu Chakravarthula <srinivu@yahoo-inc.com>
Date: Mon, 8 Nov 2010 09:09:47 +0530
To: "Northcut, Kathryn" <northcut@mst.edu>, Gijs Veyfeyken <gijs@anysurfer.be>, "kmancuso@gmail.com" <kmancuso@gmail.com>
CC: Maggie Thomson <Maggie@bunnyfoot.com>, "w3c-wai-ig@w3.org" <w3c-wai-ig@w3.org>, Matthias Vandermaesen <matthias.Vandermaesen@krimson.be>
Message-ID: <6EDAABDD8E391645A5AA81DEE7A48C624A8B0EED80@EGL-EX07VS02.ds.corp.yahoo.com>
Hi all,
Please try out Audio CAPTCHA on Yahoo! Mail registration page and let us know what you think. Please see https://na.edit.yahoo.com/registration?.pd=ym_ver%253D0%2526c%253D%2526ivt%253D%2526sg%253D&intl=us&origIntl=&done=http%3A%2F%2Fmail.yahoo.com&src=ym&last=&partner=yahoo_default&domain=&yahooid=

PS: If link doesn't work, head to http://mail.yahoo.com and click on Create new account.

Best regards,

Srinivasu Chakravarthula | Accessibility Manager
Yahoo! Software Development (India) Pvt. Ltd
Direct: +91 80-3077-4332 Mobile: +91-990-081-0881 IM: vasugroupmails
Website: http://in.yahoo.com Blog: http://accessibility.yahoo.com
Twitter: http://twitter.com/VasuTweets Virtual home: http://www.srinivasu.org

From: w3c-wai-ig-request@w3.org [mailto:w3c-wai-ig-request@w3.org] On Behalf Of Northcut, Kathryn
Sent: Thursday, November 04, 2010 9:59 PM
To: Gijs Veyfeyken; kmancuso@gmail.com
Cc: Maggie Thomson; w3c-wai-ig@w3.org; Matthias Vandermaesen
Subject: RE: Accessible Captcha


On new, standard PC equipment including external Dell speakers with volume controls, I was only able to hear two of the three words and thus, I assume, would not have "passed" the captcha.  Seems very unusable to me - having full range of hearing and corrected vision, good typing on full keyboard, all the advantages. The background noise was definitely an issue.

Thanks for posting. I find this very interesting.

Kathryn Northcut
Director, Technical Communication Programs
Missouri University of Science and Technology
500 W 14th St HSS 216
Rolla MO 65409-0560

From: w3c-wai-ig-request@w3.org [mailto:w3c-wai-ig-request@w3.org] On Behalf Of Gijs Veyfeyken
Sent: Thursday, November 04, 2010 11:22 AM
To: kmancuso@gmail.com
Cc: Maggie Thomson; w3c-wai-ig@w3.org Group list; Matthias Vandermaesen
Subject: Re: Accessible Captcha

This is an example of an audiocaptcha from ReCaptcha I recorded from the site TrueTwit yesterday:


Can you understand it?

The reason I mentioned Mollom is because they use the phonetic alphabet (Alpha, Beta, Charlie, Victor, ...), which is cristal clear, and don't add background noise.

Kind regards,


Gijs Veyfeyken
AnySurfer - Belgian quality label for accessible websites
A project of Blindenzorg Licht en Liefde vzw
Kunstlaan 24 box 21
1000 Brussels
phone 0032 (0)2 21 06 149
mobile  0032 (0)471 98 05 71

Op 4-nov-2010, om 16:54 heeft Katherine Mancuso het volgende geschreven:

I've heard good things about the accessibility of ReCaptcha: can anyone comment on whether this is true?

On Thu, Nov 4, 2010 at 5:32 AM, Gijs Veyfeyken <gijs@anysurfer.be<mailto:gijs@anysurfer.be>> wrote:
Dear Maggie,

Mollom (http://www.mollom.com<http://www.mollom.com/>) is the most accessible audiocaptcha I know of.
I recently put up a WordPress blog with the Mollom captcha for test purposes:


Put the word "SPAM" in the commentfield and submit the comment to trigger the captcha.

Kind regards,


Gijs Veyfeyken
AnySurfer - Belgian quality label for accessible websites
A project of Blindenzorg Licht en Liefde vzw
Kunstlaan 24 box 21
1000 Brussels Belgium
phone 0032 (0)2 21 06 149
mobile  0032 (0)471 98 05 71

Op 4-nov-2010, om 12:48 heeft Maggie Thomson het volgende geschreven:

Hi all

Does anyone have an example of a website where a  Captcha implementation  is done well, in terms of accessibility.

Much appreciated


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Received on Monday, 8 November 2010 03:40:52 UTC

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