We pick j.root-servers.net, one of the 13 root servers (1), and ask it about yahoomail.in and learn that in is delegated to nine name servers (2), so we ask b1.in.afilias-nst.in where we learn that yahoomail.in is delegated to five name servers, including ns4.yahoo.com (3), so we ask that one and get the following answer:
Yahoomail.in is a domain controlled by five domain name servers at yahoo.com. All five of them are on different IP networks. Incoming mail for yahoomail.in is handled by one mail server at .. We are missing the IP:s of one server: .. Yahoomail.in has two IP numbers (68.180.206.184, 98.139.102.145). Both are on different IP networks.
Yahoomail.in is ranked #2528808 world wide and is hosted on two servers in Sunnyvale, CA, United States even though the hostname implies India. It has twelve inlinks.
The five name servers ns1, ns2, ns3, ns4 and ns5.yahoo.com together
Three quarter of the several thousand of domains that use name server group 1 point to IP group 1 (example: square-trade-yahoo.com, adslyahoo.com and iowayahoo.com ). Worth noting is that most of the host names that point to IP group 1 use name server group 1.
The IP number 98.139.102.145
There are several thousand of host names that point to the IP number 98.139.102.145.