We pick f.root-servers.net, one of the 13 root servers (1), and ask it about o2.pl and learn that pl is delegated to eight name servers (2), so we ask c-dns.pl where we learn that o2.pl is delegated to two name servers, including ns2.go2.pl (3), so we ask that one and get the following answer:
O2.pl is a domain controlled by two domain name servers at go2.pl. Both are on different IP networks. Incoming mail for o2.pl is handled by nine mail servers also at go2.pl. All nine of them are on the same IP network. O2.pl has one IP number (193.17.41.103), which also has a corresponding reverse pointer.
O2.pl is ranked #1090 world wide and is hosted on a server in Poland. It has 3360 inlinks.
The name server ns2.go2.pl
All of the more than hundred domains that use the name server ns2.go2.pl use the two name servers ns1 and ns2.go2.pl together, hereafter referred to as "name server group 1", (example: sfora.biz, pej.cz and autokrata.pl ).
The mail server mx8.go2.pl
All of the 13 domains that use the mail server mx8.go2.pl use the nine mail servers mx11, mx13, mx3, mx4, mx5, mx6, mx7, mx8 and mx9.go2.pl together, hereafter referred to as "mail server group 1".
