reCAPTCHA - Protect your email address!
Was browsing Leo Laporte’s blog and went to the contact page to get his email address, and he had this really cool thing that prevents spammers & bots from harvesting your email address off your web page. Its called reCAPATCHA, and they have a full API as well as Plug-in for many web applications (WordPress, MediaWiki, etc.) and programing Languages (PHP, ASP.NET, Perl, Python, Ruby)…
If you don’t know, a CAPTCHA is a type of challenge-response test used in computing to determine that the user is human, i.e., not a bot or another program. See Wikipedia for more info on CAPTCHAs.
Here’s a short description from the reCAPTCHA’s web site.
reCAPTCHA is a freely available CAPTCHA implementation. It distinguishes humans from computers. This may be useful for:
- A registration page for a forum or wiki.
- A comment form.
- Hiding information that could be useful to spammers (we recommend the reCAPTCHA Mailhide API for this).
