Difference between revisions of "ReCAPTCHA"
From Kolmisoft Wiki
Jump to navigationJump to search
(New page: right) |
|||
| Line 1: | Line 1: | ||
[[Image:recaptcha.gif|right]] | [[Image:recaptcha.gif|right]] | ||
A [http://recaptcha.net/captcha.html CAPTCHA] is a program that can tell whether its user is a human or a computer. You've probably seen them — colorful images with distorted text at the bottom of Web registration forms. CAPTCHAs are used by many websites to prevent abuse from "bots," or automated programs usually written to generate spam. No computer program can read distorted text as well as humans can, so bots cannot navigate sites protected by CAPTCHAs. | |||
Revision as of 07:21, 28 May 2009
A CAPTCHA is a program that can tell whether its user is a human or a computer. You've probably seen them — colorful images with distorted text at the bottom of Web registration forms. CAPTCHAs are used by many websites to prevent abuse from "bots," or automated programs usually written to generate spam. No computer program can read distorted text as well as humans can, so bots cannot navigate sites protected by CAPTCHAs.
