I'd do it against your domain. I think that report pertains to the resolution of Wanadoos website address and all their 'stuff'.
I'm going to ask my host about that comand line thing for you. He seemed to imply that it was possible to track down how your browsers requests are routed to your website, then you could do IP checks from the DNSstuff site and see whether any errors are generated along the way.
Typically i cannot now access my mail server either so whether there has been any reply or not i cannot say right now.
Have start again from hotmail.
Arse.