A subpage usually refers to a lower level web page in a website or wiki.
[1] In this example website, news, about, portfolio and contact are subpages of home.
Wikis hosted with the MediaWiki software create subpages by adding a slash ("/") after the 'parent' page name.
Subpages are used in Wikiversity, where the structure permits contributions by students at any academic level,[2][3] and in both Wikibooks and Wikisource, where chapters are subpages of a book.
[4] This Internet-related article is a stub.