DNS delegation of arpa.ch updated: Jun 20, 2013 2:47:06 AM
Delegation
step
query
auth
servers
1
arpa.ch.
.
(a,c,h,d,i,m,l,e,g,f,b,j,k).root-servers.net.
2
arpa.ch.
ch.
(a,h,f,b,d,e,c).nic.ch.
3
arpa.ch.
arpa.ch.
(ns,ns2,ns3).hostpoint.ch.
We pick a.root-servers.net, one of the 13 root servers (1), and ask it about arpa.ch and learn that ch is delegated to seven name servers (2), so we ask a.nic.ch where we learn that arpa.ch is delegated to three name servers, including ns.hostpoint.ch (3), so we ask that one and get the following answer:
The three name servers ns, ns2 and ns3.hostpoint.ch together
Three quarter of the several thousand of domains that use name server group 1 use mail server group 1 (example: mfschnyder.ch, ota.ch and pfarrei-altendorf.ch ). Worth noting is that half of the domains that use mail server group 1 use name server group 1.
The name server ns3.hostpoint.ch
There are several thousand of domains that use the name server ns3.hostpoint.ch.
The two mail servers mx1 and mx2.mail.hostpoint.ch together
There are several thousand of domains that use mail server group 1.
Half of those use name server group 1 (example: pagehost.ch, powerpraise.ch and ck-image.ch ). Worth noting is that three quarter of the domains that use name server group 1 use mail server group 1.
Six percent of them point only to the IP number 217.26.52.26.