W3C home > Mailing lists > Public > w3c-wai-ig@w3.org > April to June 2008

RE: Alternate for Captcha - Need suggestions

From: Juan Ulloa <julloa@bcc.ctc.edu>
Date: Thu, 8 May 2008 08:28:11 -0700
Message-ID: <ED7D39393F6D1742941173A4D35944BE0D054807@EAGLE.bcc.ctc.edu>
To: "Cheryl D Wise" <cdwise@wiserways.com>, "Randal Rust" <randalrust@gmail.com>, <w3c-wai-ig@w3.org>

We've started implementing simple mathematical questions, like "what is
10 + 3?"  My thought is that numbers are more cross-cultural than
language, you don't have to w worry about spelling errors and small
addition questions don't require a lot of cognitive processing.    

So far, spam bots haven't caught up with this simple approach.  If spam
bots start catching up, we can simply change our array of questions and

Juan C. Ulloa
Webmaster, Web Services
Bellevue Community College

-----Original Message-----
From: w3c-wai-ig-request@w3.org [mailto:w3c-wai-ig-request@w3.org] On
Behalf Of Cheryl D Wise
Sent: Thursday, May 08, 2008 6:18 AM
To: 'Randal Rust'; w3c-wai-ig@w3.org
Subject: RE: Alternate for Captcha - Need suggestions

You need to watch for cultural differences. For many people Sunday is
first day of the week and others it is Saturday.

Cheryl D Wise
MS MVP Expression - Author: Foundations of Microsoft Expression Web
Adobe Community Expert - Dreamweaver

-----Original Message-----
From: Randal Rust

On Thu, May 8, 2008 at 8:08 AM, Priti Rohra <priti.rohra@n-syst.com>

> I am considering suggesting a situation, where the person has to
answer a
> question. If he can't answer, we can give an option to request another
> question.

This is the method that we have implemented on several projects. We
have kept it simple:

What is the first day of the week?

What is the first month of the year?

You just need to make sure that you accept *monday* and *Monday* from

We have one site that gets 6-10,000 visits a day, and spam was a
continual problem, until we implemented this simple solution.
Received on Thursday, 8 May 2008 15:29:03 UTC

This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 20:36:31 UTC