DNS delegation of mobile.lu updated: May 24, 2013 4:59:48 PM
Delegation
step
query
auth
servers
1
mobile.lu.
.
(d,m,a,j,h,f,g,k,b,i,e,l,c).root-servers.net.
2
mobile.lu.
lu.
(g,ns1,p,i,k,ns5,j).dns.lu.
3
mobile.lu.
mobile.lu.
ns1.pt.lu. ns1.foyer.lu.
We pick d.root-servers.net, one of the 13 root servers (1), and ask it about mobile.lu and learn that lu is delegated to seven name servers (2), so we ask g.dns.lu where we learn that mobile.lu is delegated to two name servers, including ns1.pt.lu (3), so we ask that one and get the following answer:
There are almost a thousands domains that use the name server ns1.pt.lu.
Three quarter of those use the three name servers ns1, ns2 and ns3.pt.lu together, hereafter referred to as "name server group 1", (example: fischer.lu, soludec.lu and p3a.lu ).