index.html
default.htm
index.htm

    The default HTML page served by most web
   servers in response to a request for a directory.  The name
   suggests that the page will contain some kind of index of the
   contents of the requested directory.

   For example, if the content for website example.com is stored
   in the file system in directory /var/www/example.com, then a
   request for http://example.com/products would return the contents
   of file /var/www/example.com/products/index.html.

   A website's home page follows the same logic.  For the above
   example, a request for http://example.com/ would return the
   contents of /var/www/example.com/index.html.

   It is often possible, and occasionally necessary, to specify
   index.html explicitly in the URL, as in
   http://example.com/index.html, though modern practice is to omit
   it.

   If you're looking for FOLDOC's home page (/) at
   http://foldoc.org/index.html, then you followed an out-of-date
   link.  Please update your bookmark to http://foldoc.org/ or inform
   the owner of the site you came from.

   Microsoft, of course, has to be different and uses default.htm
   instead of index.html.  The variant index.htm is a throw-back to
   the days when some file systems only allowed three-character file
   name extensions.

   (2014-06-22)