 | This is a documentation subpage for Template:Cat in use. It may contain usage information, categories and other content that is not part of the original template page. |
 | This template is used on approximately 49,000 pages and changes may be widely noticed. Test changes in the template's /sandbox or /testcases subpages, or in your own user subpage. Consider discussing changes on the talk page before implementing them.
Preview message: Transclusion count updated automatically (see documentation). |
This template checks whether a category is 'in use', checking various combinations of whether the category exists (is not a redlink) and is populated (has pages in it).