We pick h.root-servers.net, one of the 13 root servers (1), and ask it about clan-sy.com and learn that com is delegated to 13 name servers (2), so we ask m.gtld-servers.net where we learn that clan-sy.com is delegated to three name servers, including ns3.zoneedit.com (3), so we ask that one and get the following answer:
The two last resort mail servers aspmx2 and aspmx3.googlemail.com together
All of the several thousand of domains that use last resort mail server group 1 use the primary mail server aspmx.l.google.com (example: kzsu.stanford.edu, lsdsound.com and versentia.net ). Worth noting is that one quarter of the domains that use the primary mail server aspmx.l.google.com use last resort mail server group 1.
The five mail servers aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com, alt1.aspmx.l…
More than one in seven of them use the two name servers ns1 and ns2.zoneedit.com together, hereafter referred to as "name server group 4", (example: jewishpostoffice.com, zeeba.us and i602.com ). Worth noting is that half of the domains that use name server group 4 use the primary name server ns2.zoneedit.com.
The two name servers ns3 and ns5.zoneedit.com together
All of the more than a thousands domains that use the two name servers ns3 and ns5.zoneedit.com together, hereafter referred to as "name server group 5", use the primary name server ns3.zoneedit.com (example: txdem.net, global-axcess.biz and scootch.com ). Worth noting is that about one in six of the domains that use the primary name server ns3.zoneedit.com use name server group 5.
The two name servers ns13 and ns2.zoneedit.com together
Three quarter of the more than a thousands domains that use the two name servers ns13 and ns2.zoneedit.com together, hereafter referred to as "name server group 6", use the primary name server ns2.zoneedit.com (example: coolcrafts.net, htonline.biz and workboard.com.au ). Worth noting is that nine percent of the domains that use the primary name server ns2.zoneedit.com use name server group 6.