ns4.facebook.co


DNS delegation of ns4.facebook.co updated: May 20, 2013 7:52:08 PM

Delegation

stepqueryauthservers
1ns4.facebook.co..(k,d,a,f,j,b,c,h,i,m,g,l,e).root-servers.net.
2ns4.facebook.co.co.(ns1,ns4,ns5,ns3,ns2,ns6).cctld.co.
3ns4.facebook.co.facebook.co.(b,a).ns.facebook.com.
We pick k.root-servers.net, one of the 13 root servers (1), and ask it about ns4.facebook.co and learn that co is delegated to six name servers (2), so we ask ns1.cctld.co where we learn that facebook.co is delegated to two name servers, including b.ns.facebook.com (3), so we ask that one and get the following answer:

Authoritative answer

ANSWER for ns4.facebook.co.
ns4.facebook.co.7200 A69.171.245.32 ns4.facebook.co points to 69.171.245.32.
AUTHORITATIVE for ns4.facebook.co.
facebook.co.172800 NS a.ns.facebook.com. facebook.co use a.ns.facebook.com as name server.
172800 NS b.ns.facebook.com. facebook.co use b.ns.facebook.com as name server.
ADDITIONAL for ns4.facebook.co.
a.ns.facebook.com.172800 A69.171.239.12
b.ns.facebook.com.172800 A69.171.255.12
co. net. com. cctld.co. facebook.co. ns1.cctld.co. ns6.cctld.co. facebook.com. ns5.cctld.co. ns2.cctld.co. ns4.cctld.co. ns3.cctld.co. ns.facebook.com. ns4.facebook.co. root-servers.net. a.ns.facebook.com. b.ns.facebook.com. m.root-servers.net. a.root-servers.net. j.root-servers.net. h.root-servers.net. d.root-servers.net. i.root-servers.net. l.root-servers.net. k.root-servers.net. g.root-servers.net. f.root-servers.net. c.root-servers.net. b.root-servers.net. e.root-servers.net.
whois co
whois net
whois com
whois cctld.co
whois facebook.co
whois facebook.com
whois root-servers.net

whois facebook.co, facebook.co
domain info api facebook.co

Ns4.facebook.co has one IP number (69.171.245.32), but the reverse is ns4.facebook.com.

Ns4.facebook.com point to the same IP. Somethingtoputhere.com, ff.im, friendfeedapi.com, frendfeed.com, fb.me and at least 16 other hosts use ns4.facebook.co as a name server under another name.

Also check www.facebook.co and facebook.co.

robtex on ns4.facebook.co
RBL listing of ns4.facebook.co
mnw
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