DNS delegation of korea.kr updated: Jun 20, 2013 12:24:00 PM
We pick e.root-servers.net, one of the 13 root servers (1), and ask it about korea.kr and learn that kr is delegated to six name servers (2), so we ask f.dns.kr where we learn that korea.kr is delegated to two name servers, including ns.gcc.go.kr (3), so we ask that one and get the following answer:
There are more than hundred domains that only use the mail server spam.korea.kr.
A third of those use name server group 1 (example: bai.go.kr, naqs.go.kr and mw.go.kr ). Worth noting is that eleven percent of the domains that use name server group 1 use only the mail server spam.korea.kr.
The two name servers ns and ns2.gcc.go.kr together
There are several hundred of domains that use name server group 1.
Eleven percent of those use only the mail server spam.korea.kr (example: kfda.go.kr ). Worth noting is that one quarter of the domains that only use the mail server spam.korea.kr use name server group 1.