star-slb-10-03-frc1.facebook.com
DNS delegation of star-slb-10-03-frc1.facebook.com updated: May 18, 2013 11:32:48 PM
Delegation
step query auth servers
1 star-slb-10-03-frc1.facebook.com. . (d,b,h,c,e,f,m,l,k,a,j,g,i).root-servers.net. 2 star-slb-10-03-frc1.facebook.com. com. (a,c,b,f,j,i,e,l,d,h,k,m,g).gtld-servers.net. 3 star-slb-10-03-frc1.facebook.com. facebook.com. (a,b).ns.facebook.com.
We pick d.root-servers.net , one of the 13 root servers (1), and ask it about star-slb-10-03-frc1.facebook.com and learn that com is delegated to 13 name servers (2), so we ask a.gtld-servers.net where we learn that facebook.com is delegated to two name servers, including a.ns.facebook.com (3), so we ask that one and get the following answer:
Authoritative answer
AUTHORITATIVE for star-slb-10-03-frc1.facebook.com. facebook.com. 120 SOA a.ns.facebook.com. dns.facebook.com. ( 2013051700 7200 1800 604800 120 )
net. com. facebook.com. ns.facebook.com. root-servers.net. gtld-servers.net. a.ns.facebook.com. b.ns.facebook.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. 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. star-slb-10-03-frc1.facebook.com.
whois net whois com whois facebook.com whois root-servers.net whois gtld-servers.net
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