# Tracking categories

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 with too many expensive parser function callsexpensive-parserfunction-categoryToo many expensive parser functions (like #ifexist) included on a page. See Manual:$wgExpensiveParserFunctionLimit. Pages containing omitted template argumentspost-expand-template-argument-categoryAfter expanding a template argument (something in triple braces, like {{{Foo}}}), the page is bigger than $wgMaxArticleSize.
Pages where template include size is exceededpost-expand-template-inclusion-categoryAfter expanding all the templates, the page size is bigger than \$wgMaxArticleSize, so some templates weren't expanded.
Hidden categorieshidden-category-categoryThis is a category with __HIDDENCAT__ on it, which prevents it from showing up in the category links box on pages, by default.