Page is a not externally linkable
g1smd - 12:38 am on Jul 23, 2012 (gmt 0)
G is now scanning non-linking text
They do, and it leads to a lot of incomplete and truncated URLs showing as 404 errors in WMT.
If you have files that are used only as server-side includes, you should use htaccess to block access to the folder from the web.