Help:Restricting an article's readership
From Willipedia
There are two ways to restrict who can read an article on Willipedia.
1. To make sure that an article is not indexed by search engines, although still readable by anyone who stumbles across it, add this anywhere in the article's body:
<norobots></norobots>
2. Articles with names that start with "Private:" are only visible on-campus (or to people who have logged in).
- Note that the security afforded by this option has had some gaping holes in the past.