The extension Readers displays the readers of a wiki page.
Viewing the readers of a page
Users must have admin rights to see the readers of a page. The list of readers is shown on the page information, which can be accessed from the page tools.
Admin users can also access the page Special:Readers/Page_Name. This special page shows the list of all readers of a page with the date of their last visit.
In the Config manager, wiki admins can change the settings for this feature. Here, the number of readers to be shown in the flyout can be changed (defaults to 10).