The
Allow
andDeny
directives let you allow and deny access based on the host name, or host address, of the machine requesting a document. TheOrder
directive goes hand-in-hand with these two, and tells Apache in which order to apply the filters.
http://httpd.apache.org/docs/2.2/howto/access.html
Allow from http://websitename.com
Allow from websitename.com would be valid. Allow from http://websitename.com
is not valid.