# 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 pagesindex-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 pagesnoindex-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 callsduplicate-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 callsexpensive-parserfunction-categoryThe page uses too many expensive parser functions (like #ifexist). See Manual:$wgExpensiveParserFunctionLimit. Pages containing omitted template argumentspost-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 exceededpost-expand-template-inclusion-categoryThe page size is bigger than \$wgMaxArticleSize after expanding all the templates, so some templates were not expanded.
Hidden categorieshidden-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 linksbroken-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 exceedednode-count-exceeded-categoryThe page exceeds the maximum node count.
Pages where expansion depth is exceededexpansion-depth-exceeded-categoryThe page exceeds the maximum expansion depth.
Pages with ignored display titlesrestricted-displaytitle-ignoredThe page has an ignored {{DISPLAYTITLE}} because it is not equivalent to the page's actual title.
Pages using invalid self-closed HTML tagsdeprecated-self-close-categoryThe page contains invalid self-closed HTML tags, such as <b/> or <span/>. The behavior of these will change soon to be consistent with the HTML5 specification, so their use in wikitext is deprecated.
Pages with template loopstemplate-loop-categoryThe page contains a template loop, ie. a template which calls itself recursively.
Pages with reference errorscite-tracking-category-cite-errorPages in this category have errors in the usage of references tags.