Preventing spam on MediaWiki

Google's recaptcha

What is recaptcha and how/will it help prevent spam ?

For answers to those questions you can look at google's page about recaptcha(


This installation guide requires mediawiki 1.26 or higher

  • Go to google's recaptcha administrator page( and register your site
  • Open your *LocalSettings.php* file which is in your mediawiki instalation folder
  • Put the following piece of text in the above mentioned file

require_once "$IP/extensions/ConfirmEdit/ConfirmEdit.php";

wfLoadExtension( 'ConfirmEdit/ReCaptchaNoCaptcha' ); $wgCaptchaClass = 'ReCaptchaNoCaptcha'; $wgReCaptchaSiteKey = ' your public/site key here '; $wgReCaptchaSecretKey = ' your private key here ';

example of public and private key (
  • mediawiki wil start loading recaptcha in the background and once done wil start using recaptcha for defending you from bots