We pick h.root-servers.net, one of the 13 root servers (1), and ask it about m.media.pl and learn that pl is delegated to eight name servers (2), so we ask e-dns.pl where we learn that m.media.pl is delegated to two name servers, including dns.supertraders.pl (3), so we ask that one and get the following answer:
The two name servers dns and dns2.supertraders.pl together
There are ten domains that use name server group 1.
Five of those point only to the IP number 178.32.201.240.
Four of them point only to the IP number 178.32.247.41. Worth noting is that four of the host names that point only to the IP number 178.32.247.41 use name server group 1.
Two of them use only the mail server smtp.supertraders.pl. Worth noting is that two of the domains that only use the mail server smtp.supertraders.pl use name server group 1.
The IP number 178.32.247.41
There are five host names that point to the IP number 178.32.247.41.
Four of the five host names that point only to the IP number 178.32.247.41 use name server group 1. Worth noting is that four of the domains that use name server group 1 point only to the IP number 178.32.247.41.
Two of the three domains that only use the mail server smtp.supertraders.pl use name server group 1. Worth noting is that two of the domains that use name server group 1 use only the mail server smtp.supertraders.pl.
The two mail servers smtp.internetquality.pl and smtp.supertraders.pl together