I checked my account and I have logs for domain.tld, www.domain.tld and user.x10host.com . My logs for user.x10host.com are empty because it redirects to www.domain.tld . I am on xo7.x10hosting.com . What sever are you on, what is your user.x10host.com and what is your domain?
I have a domain.com that redirects to sub.domain.com and accessing by ftp to my server I can see two files, each one named after each domain. But the two of them are empty.