DNS delegation of yello-preis.com updated: May 21, 2013 3:47:46 PM
Delegation
step
query
auth
servers
1
yello-preis.com.
.
(i,k,g,j,d,h,f,m,e,l,b,a,c).root-servers.net.
2
yello-preis.com.
com.
(b,j,h,i,c,d,a,k,e,l,g,m,f).gtld-servers.net.
3
yello-preis.com.
yello-preis.com.
(dns1,dns2,dns3).lf.net.
We pick i.root-servers.net, one of the 13 root servers (1), and ask it about yello-preis.com and learn that com is delegated to 13 name servers (2), so we ask b.gtld-servers.net where we learn that yello-preis.com is delegated to three name servers, including dns1.lf.net (3), so we ask that one and get the following answer:
Yello-preis.com is a domain controlled by three domain name servers at lf.net. All three of them are on different IP networks. Incoming mail for yello-preis.com is handled by two mail servers also at lf.net. Both are on different IP networks. Yello-preis.com has one IP number (195.35.76.193).
Half of them use the two mail servers fb-mx and mail.lf.net together, hereafter referred to as "mail server group 1", (example: mein-yello.de, controllingpanel.com and server.sew.de ). Worth noting is that a third of the domains that use mail server group 1 use name server group 1.