Help:Special page

Special pages are pages generated by the software on demand for special purposes, usually related to project maintenance. They are found in the Special: namespace, a virtual namespace whose pages lack corresponding talk pages. They are not written in wikitext and can't be edited in the normal way; but elements of their pages can sometimes be edited through corresponding pages in the MediaWiki namespace. If you make a normal redirect to a special page, the redirect will not be immediately followed (though special pages can be targets of soft redirects), and creating any pages beginning with the Special: prefix is also not possible.

Wikipedia data structure
Subject namespaces Talk namespaces
0 (Main/Article) Talk 1
2 User User talk 3
4 Wikipedia Wikipedia talk 5
6 File File talk 7
8 MediaWiki MediaWiki talk 9
10 Template Template talk 11
12 Help Help talk 13
14 Category Category talk 15
100 Portal Portal talk 101
118 Draft Draft talk 119
710 TimedText TimedText talk 711
828 Module Module talk 829
Deprecated
2300 Gadget Gadget talk 2301
2302 Gadget definition Gadget definition talk 2303
-1 Special
-2 Media

Special pages often take parameters. Sometimes these can be supplied after a slash (as in Special:Log/block); in other cases an index.php call is used; for example https://en.wikipedia.org/w/index.php?title=Special:RecentChanges&days=3&limit=10. Also, the content of most special pages depends on preferences that have been set by the user, e.g. classic or enhanced Recent Changes, the number of titles in Recent Changes and the watchlist, etc.

A directory of special pages can be accessed from Special:SpecialPages, which is found in the sidebar of every page on Wikipedia in the Tools section.