DNS delegation of yahoo.com.hk updated: May 17, 2013 10:16:52 PM
Delegation
step
query
auth
servers
1
yahoo.com.hk.
.
(a,e,c,m,h,g,l,f,d,i,j,b,k).root-servers.net.
2
yahoo.com.hk.
hk.
(y,a,b,s,w,v,t,z,x,u).hkirc.net.hk.
3
yahoo.com.hk.
yahoo.com.hk.
(ns5,ns1).yahoo.com.
We pick a.root-servers.net, one of the 13 root servers (1), and ask it about yahoo.com.hk and learn that hk is delegated to ten name servers (2), so we ask y.hkirc.net.hk where we learn that yahoo.com.hk is delegated to two name servers, including ns5.yahoo.com (3), so we ask that one and get the following answer:
Yahoo.com.hk is ranked #4 world wide as yahoo.com and is hosted on five servers in Sunnyvale, CA, United States even though the hostname implies Hong Kong. It has gained one inlink over a period of twelve years. It has 11 organic keywords.
Most of those use the five name servers ns1, ns2, ns3, ns4 and ns5.yahoo.com together, hereafter referred to as "name server group 1", (example: plusyahoo.biz, yahoonorway.biz and 18seconds.com ). Worth noting is that three quarter of the domains that use name server group 1 point to IP group 1.
The five name servers ns1, ns2, ns3, ns4 and ns5.yahoo.com together
Three quarter of the about a hundred domains that use name server group 1 point to IP group 1 (example: altavista.ch, altavistausa.com and altivista.com ). Worth noting is that one percent of the host names that point to IP group 1 use name server group 1.
The six name servers ns1, ns2, ns3, ns4, ns5 and ns6.yahoo.com together
There are about eighty domains that use name server group 2.
