We pick k.root-servers.net, one of the 13 root servers (1), and ask it about hotmail.com.sg and learn that sg is delegated to four name servers (2), so we ask sec3.apnic.net where we learn that com.sg is delegated to three name servers, including dsany.sgnic.sg (3), so we ask that one and learn that hotmail.com.sg is delegated to three name servers (4), so we ask ns2.msft.net and get the following answer:
Hotmail.com.sg is a domain controlled by three domain name servers at msft.net having a total of six IP numbers. Two of them are on the same IP network. Incoming mail for hotmail.com.sg is handled by four mail servers at hotmail.com having a total of twelve IP numbers. There are 36 duplicated IP numbers. All twelve of them are on the same IP network. Hotmail.com.sg has four IP numbers (65.55.143.16, 65.55.143.17, 65.55.129.173, 65.55.129.171). All four of them are on the same IP network.
Hotmail.com.sg is hosted on four servers in Redmond, WA, United States even though the hostname implies Singapore. It has four inlinks. It has 3 organic keywords.
The name server ns2.msft.net
There are several thousand of domains that use the name server ns2.msft.net.
Eleven of them use the mail server mx3.hotmail.com. Worth noting is that eleven of the domains that use the mail server mx3.hotmail.com point to the IP number 65.55.129.171.
The four IP numbers 65.55.129.171, 65.55.129.173, 65.55.143.16 and 65.55.143.17 together
Nine of the 13 host names that point to IP group 1 use the three name servers ns2, ns3 and ns4.msft.net together (but neither ns1 nor ns5.msft.net ).
The five name servers ns1, ns2, ns3, ns4 and ns5.msft.net together
There are about twenty host names that point to the IP number 65.55.129.173.
Eleven of those use the mail server mx2.hotmail.com. Worth noting is that eleven of the domains that use the mail server mx2.hotmail.com point to the IP number 65.55.129.173.
Eleven of them use the mail server mx1.hotmail.com. Worth noting is that seven of the domains that use the mail server mx1.hotmail.com point to the IP number 65.55.129.173.
The four mail servers mx1, mx2, mx3 and mx4.hotmail.com together