Board Thread:Support Requests - Getting Started/@comment-13134475-20130726114656/@comment-1330470-20130726152836

Basically, yeah. But there's more than one kind.

If I make a link to a wiki page that doesn't exist, then the wiki knows it doesn't exist and makes a redlink. This isn't necessarily a bad thing or something that needs to be removed, but rather, it's a reminder that the wiki is not complete, and that someone should make that page! There are several Special pages to help you deal with redlinks: check out Special:SpecialPages.

If I make a link to a page on another site that doesn't exist, then it's a broken link. The wiki software can't immediately verify if a link is broken or not, so the link displays as any other external link. Since it can't be auto-detected, users of a wiki may manually mark the page as having broken links, so that other users can clean it up.