Noindex can be used to prevent indexing of a page by search engines. Sample code would be:

$wgOut->setRobotPolicy('noindex,nofollow');

Or, if one wished to be more selective:

$wgOut->setIndexPolicy('noindex');

There are also __INDEX__ and __NOINDEX__ magic words. To make these work for a given namespace, one may need to adjust $wgExemptFromUserRobotsControl. One can test whether they function for a given page using Title::canUseNoindex().

See also

• w:Noindex
• Nofollow
• Manual:$wgDefaultRobotPolicy
• Manual:$wgExemptFromUserRobotsControl
• Manual:$wgNamespaceRobotPolicies
• Help:Controlling search engine indexing