Captcha Alternative

[greencode]

Hi, I'm looking at adding some kind of user verification on a contact form on my site. For this I'd like to use very simple pictures (the kind you'd find in a children's book e.g. ball, zebra etc etc.

Does anyone know if there's a script already available out there that I could adapt?

[eelixduppy]

There should definitely be a image CAPTCHA like you want. I thought [recaptcha.net...] had something like that, but I cannot find it so it must have been somplace else. In any case, you should check some of the script repositories such as [sourceforge.net...] , [phpclasses.org...] , [hotscripts.com...] as you will likely find something that suits your needs.

There are also other alternatives, too. For instance, you can ask for the user to complete a simple sum (1 + 7 = ?) and validate that on the action page of the form. This works out nicely, too.

[DrDoc]

Just make sure that whatever you use caters to people with various disabilities (i.e. avoid asking what color something is) and is not subject to cultural or language barriers (i.e. don't ask what the 3rd U.S. president's name was).

Also, make sure the images used do not have the same name as the answer to the question.

Other than that, it should not be difficult to ask people to name objects shown on the images.