This page lists tracking categories which are automatically populated by the MediaWiki software. Their names can be changed by altering the relevant system messages in the MediaWiki namespace.
| Tracking category | Message name | Category inclusion criteria |
|---|---|---|
| Pages with broken file links | broken-file-category | The page contains a broken file link (a link to embed a file when the file does not exist). |
| Pages using duplicate arguments in template calls | duplicate-args-category | The page contains template calls that use duplicates of arguments, such as {{foo|bar=1|bar=2}} or {{foo|bar|1=baz}}. |
| Pages where expansion depth is exceeded | expansion-depth-exceeded-category | The page exceeds the maximum expansion depth. |
| Pages with too many expensive parser function calls | expensive-parserfunction-category | The page uses too many expensive parser functions (like #ifexist). See Manual:$wgExpensiveParserFunctionLimit. |
| Hidden categories | hidden-category-category | The category contains __HIDDENCAT__ in its page content, which prevents it from showing up in the category links box on pages by default. |
| Indexed pages | index-category | The page has a __INDEX__ on it (and is in a namespace where that flag is allowed), and hence is indexed by robots where it normally wouldn't be. |
| Pages where node count is exceeded | node-count-exceeded-category | The page exceeds the maximum node count. |
| Noindexed pages | noindex-category | The page is not indexed by robots because it has the magic word __NOINDEX__ on it and is in a namespace where that flag is allowed. |
| Pages with non-numeric formatnum arguments | nonnumeric-formatnum | The page contains a non-numeric argument to the formatnum parser function. |
| Pages containing omitted template arguments | post-expand-template-argument-category | The page is bigger than $wgMaxArticleSize after expanding a template argument (something in triple braces, like {{{Foo}}}). |
| Pages where template include size is exceeded | post-expand-template-inclusion-category | The page size is bigger than $wgMaxArticleSize after expanding all the templates, so some templates were not expanded. |
| Pages with ignored display titles | restricted-displaytitle-ignored | The page has an ignored {{DISPLAYTITLE}} because it is not equivalent to the page's actual title. |
| Pages which use = as a template | template-equals-category | The page contains {{=}} but on this wiki that does not expand to =. This usage is deprecated; a future MediaWiki version will implement {{=}} as a parser function. |
| Pages with template loops | template-loop-category | The page contains a template loop, ie. a template which calls itself recursively. |
| Pages where the unstrip depth limit is exceeded | unstrip-depth-category | The page exceeds the unstrip depth limit. |
| Pages where the unstrip size limit is exceeded | unstrip-size-category | The page exceeds the unstrip size limit. |
| Category is disabled | discussiontools-comments-before-first-heading-category | The discussion page contains comments in the lede section (before first heading). This may cause the lede or the comments to be displayed incorrectly, especially in the mobile version and in mobile apps. |