reCAPTCHA

Published by Daniel on 8th April 2008

Filed Under Building the Web, Software

Early CAPTCHAs such as these, generated by the EZ-Gimpy program, were used on Yahoo. However, technology was developed to read this type of CAPTCHA http://www.cs.sfu.ca/~mori/research/gimpy/ .

Just visited Twitter to see how they implemented their Captcha functionality and then i saw that they use reCAPTCHA. I’ve never heard of this before, but it seems to be really cool and easy to use:

reCAPTCHA helps prevent automated abuse of your site (such as comment spam or bogus registrations) by using a CAPTCHA to ensure that only humans perform certain actions.
[...]
reCAPTCHA is a Web service. [...] For many applications and programming languages such as Wordpress and PHP we also have easy-to-install plugins available.

And the best: it’s free!

This entry was posted on Tuesday, April 8th, 2008 at 9:45 pm and is filed under Building the Web, Software. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.