iOS9 iWD will not run

To give more information, in the setup where it asks for the url, I have tried the following.

website.com
www.website.com
www.website.com/clientraw.txt
www.website.com/httpdocs
www.website.com/httpdocs/clientraw.txt

I FTP the file to ftp.website.com/httpdocs

I can’t think of any other combination to try.