|Site customization: $wgNoFollowLinks|
|If true, external URL links in wiki text will be given the
|Introduced in version:||1.4.0 (r7174)|
|Removed in version:||still in use|
|Other settings: Alphabetical | By function|
If true, external URL links in wiki text will be given the
rel="nofollow" attribute as a hint to search engines that they should not be followed for ranking purposes as they are user-supplied and thus subject to spamming. Defaults to true.
- Extension:Interwiki, the easiest way to manage whitelisting (since nofollow is not applied to interwiki links)
- Manual:Costs and benefits of using nofollow
- meta:nofollow, Meta-Wiki discussion on nofollow's use on Wikimedia sites. Some of the arguments raised there may also applicable to other wikis' decisions concerning this configuration setting.