We pick b.root-servers.net, one of the 13 root servers (1), and ask it about ns2.sunheadweb.com and learn that com is delegated to 13 name servers (2), so we ask m.gtld-servers.net where we learn that sunheadweb.com is delegated to two name servers, including ns1.sunheadweb.com (3), so we ask that one and get the following answer:
All of the eight domains that use the primary name server ns1.sunheadweb.com use name server group 1. Worth noting is that eight of the domains that use name server group 1 use the primary name server ns1.sunheadweb.com.
The IPv4 number 209.191.188.202 only
Eight of the nine domains that only use the IPv4 number 209.191.188.202 are under the tld "com".
The two name servers ns1 and ns2.sunheadweb.com together
There are about twenty domains that use name server group 1.
Nine of those use only the IPv4 number 209.191.188.202. Worth noting is that eight of the domains that only use the IPv4 number 209.191.188.202 use name server group 1.
Eight of them use the primary name server ns1.sunheadweb.com. Worth noting is that all of the domains that use the primary name server ns1.sunheadweb.com use name server group 1.
