It is used to build and maintain a list or lists of pages—primarily for the sake of the lists themselves and their use in article and category maintenance. It is not part of the encyclopedia's categorization scheme.
These categories are used to track, build and organize lists of pages needing "attention en masse" (for example, pages using deprecated syntax), or that may need to be edited at someone's earliest convenience.
These categories also serve to aggregate members of several lists or subcategories into a larger, more efficient list (discriminated by classifications).
Typically, tracking categories are automatically populated by templates invoked in pages or by the MediaWiki software (see Special:TrackingCategories for an overview of the latter).
Administrators: Please do not delete this category as empty!
This category may be empty occasionally or even most of the time.
This is a tracking category for CS1 citations that have |archive-url= with an archive.today URL and |url-status= set to either of unfit or usurped.
Module:Citation/CS1 suppresses |url= when |url-status=unfit or |url-status=usurped. Module:Citation/CS1 also suppresses |archive-url= when it holds an archive.today URL. This error message is emitted when both of |url= and |achive-url= are suppressed.
To resolve this error message, replace the archive.today url with a snapshot from another archival service; replace |url= with a better source.
Pages with this error are automatically placed in Category:CS1 errors: url suppressed.
Notes
↑Pages in the Category talk, Draft talk, File talk, Help talk, MediaWiki talk, Module talk, Portal talk, Talk, Template talk, User, User talk, and Wikipedia talk namespaces are not included in the tracking categories. In addition, pages with names matching the patterns '/[Ss]andbox', '/[Tt]estcases', '/[^/]*[Ll]og', and '/[Aa]rchive' are not included in the tracking categories.