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w3.ibm.com
updated - dnswhois
DNS delegation of w3.ibm.com updated: February 7, 2012 14:29
Delegation
| step | query | auth | servers |
|---|
| 1 | w3.ibm.com. | . | (d,m,e,l,a,g,h,j,i,b,f,c,k).root-servers.net. | | 2 | w3.ibm.com. | com. | (g,l,f,c,a,b,j,h,d,m,i,k,e).gtld-servers.net. | | 3 | w3.ibm.com. | ibm.com. | ns.watson.ibm.com. internet-server.zurich.ibm.com. ns.austin.ibm.com. ns.almaden.ibm.com. |
We pick d.root-servers.net, one of the 13 root servers (1), and ask it about w3.ibm.com and learn that com is delegated to 13 name servers (2), so we ask g.gtld-servers.net where we learn that ibm.com is delegated to four name servers, including ns.watson.ibm.com (3), so we ask that one and get the following answer:
Authoritative answer
| AUTHORITATIVE for w3.ibm.com. |
|---|
| ibm.com. | 3600 | SOA | ns.watson.ibm.com. dnstech.us.ibm.com. ( 2012013000 3600 1800 604800 10800 ) |
net. com. ibm.com. w3.ibm.com. zurich.ibm.com. austin.ibm.com. watson.ibm.com. almaden.ibm.com. root-servers.net. gtld-servers.net. ns.austin.ibm.com. ns.watson.ibm.com. m.root-servers.net. a.root-servers.net. g.gtld-servers.net. e.gtld-servers.net. j.root-servers.net. i.gtld-servers.net. f.gtld-servers.net. m.gtld-servers.net. k.gtld-servers.net. h.root-servers.net. d.root-servers.net. d.gtld-servers.net. i.root-servers.net. h.gtld-servers.net. l.root-servers.net. k.root-servers.net. g.root-servers.net. ns.almaden.ibm.com. b.gtld-servers.net. f.root-servers.net. c.gtld-servers.net. c.root-servers.net. a.gtld-servers.net. b.root-servers.net. l.gtld-servers.net. j.gtld-servers.net. e.root-servers.net. internet-server.zurich.ibm.com.
whois ibm.com
whois root-servers.net
whois gtld-servers.net
whois ibm.com, ibm.com
domain info api ibm.com
Splitter.w3.ibm.com and redirect.w3.ibm.com are subdomains to this hostname.
Ibm.com is a domain controlled by four domain name servers at ibm.com having a total of five IP numbers. All five of them are on different IP networks. The primary name server is ns.watson.ibm.com. Incoming mail for ibm.com is handled by eleven mail servers at ibm.com themselves. Some of them are on the same IP network. ibm.com has one IP number (129.42.38.1).
You might also be interested in similar looking domain names: w3.iim.com and w3.iecc.com. Also check www.ibm.com and ibm.com.
RBL listing of w3.ibm.com
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