[thelist] CAPTCHA

Jeremy Weiss eccentric.one at gmail.com
Sat Aug 8 20:38:33 CDT 2009

Hassan Schroeder wrote:
> I'd think one person's "house" might be another's "home", or "building",

I wondered about that myself. But what about simple color/shape
combinations. 'red triangle' or 'blue circle'. PHP (and most languages, I
assume) could easily draw the image on the fly. And, it would be quite
simple to solve... not sure if it would work though. Hmm, if I ever build a
site targeted to children, I'll have to try that.

Hassan Schroeder also wrote:
> Rorschach test anyone? :-)

Hmm...maybe not as a CAPTCHA, but... Facebook app, anyone? :)

Flavia Tarzwell (FayeC) wrote:
> Securimage (http://www.phpcaptcha.org/) uses a list of words you can
> populate yourself.

I've used this on several sites and it seems to be a good middle ground
between 'working' and 'legible'. As an added bonus, you can make the word
list related to the topic of the site. For example, if it's a real estate
agent selling beach front properties, make a list of words like ocean, beach
ball, wave, sunburn, etc. 

A few days ago I came across one I hadn't seen before. It would give a
sentence and ask you to complete it. For example:
"People live in a ho???" and it required you to type in the 'use'.  I
actually missed it the first time b/c I typed the whole word instead of just
the missing letters. But, it was simple and didn't cause me to strain myself
looking hallucinogenic images.


More information about the thelist mailing list