Help:Wanted page

A page is considered "wanted" if it does not exist, while two or more pages in the project link to it.

The SQL for determining this is from include/SpecialWantedpages.php

SELECT 'Wantedpages' AS type, pl_namespace AS namespace, pl_title AS title, COUNT(*) AS value FROM $pagelinks LEFT JOIN $page ON pl_namespace=page_namespace AND pl_title=page_title WHERE page_namespace IS NULL GROUP BY pl_namespace,pl_title HAVING COUNT(*) > 1

You can set another threshold by setting 'HAVING COUNT(*) > n'