# Tracking categories

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
Indexed pages(empty)index-categoryThe 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.
Noindexed pages(empty)noindex-categoryThe 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 using duplicate arguments in template calls(empty)duplicate-args-categoryThe page contains template calls that use duplicates of arguments, such as {{foo|bar=1|bar=2}} or {{foo|bar|1=baz}}.
Pages with too many expensive parser function calls(empty)expensive-parserfunction-categoryThe page uses too many expensive parser functions (like #ifexist). See Manual:$wgExpensiveParserFunctionLimit. Pages containing omitted template arguments(empty)post-expand-template-argument-categoryThe page is bigger than $wgMaxArticleSize after expanding a template argument (something in triple braces, like {{{Foo}}}).
Pages where template include size is exceeded(empty)post-expand-template-inclusion-categoryThe page size is bigger than \$wgMaxArticleSize after expanding all the templates, so some templates were not expanded.
Hidden categories(empty)hidden-category-categoryThe category contains __HIDDENCAT__ in its page content, which prevents it from showing up in the category links box on pages by default.
Pages with broken file links(66 P)broken-file-categoryThe page contains a broken file link (a link to embed a file when the file does not exist).
Pages where node count is exceeded(empty)node-count-exceeded-categoryThe page exceeds the maximum node count.
Pages where expansion depth is exceeded(empty)expansion-depth-exceeded-categoryThe page exceeds the maximum expansion depth.
Pages with ignored display titles(empty)restricted-displaytitle-ignoredThe page has an ignored {{DISPLAYTITLE}} because it is not equivalent to the page's actual title.
Pages with template loops(empty)template-loop-categoryThe page contains a template loop, ie. a template which calls itself recursively.
Pages with reference errors(empty)cite-tracking-category-cite-errorPages in this category have errors in the usage of references tags.
Pages with syntax highlighting errors(1 P)syntaxhighlight-error-categoryThere was an error when attempting to highlight code included on the page.
Pages using deprecated enclose attributes(empty)syntaxhighlight-enclose-categoryThe syntaxhighlighting on the page uses deprecated enclose syntax.
Pages using deprecated source tags(empty)syntaxhighlight-source-categoryThe syntaxhighlighting on the page uses deprecated source tags.
Pages with math errors(empty)math-tracking-category-errorPages in this category have errors in the usage of math tags.
Pages with maths render errors(empty)math-tracking-category-render-errorPages in this category have rendering errors in the math tags.