Whois and reverse dns lookup provided by robtex

www.www.facebook.com


DNS delegation of www.www.facebook.com updated:

Delegation

stepqueryauthservers
1www.www.facebook.com..(e,l,i,j,a,m,g,d,c,b,h,k,f).root-servers.net.
2www.www.facebook.com.com.(j,a,e,m,b,h,f,i,k,d,g,c,l).gtld-servers.net.
3www.www.facebook.com.facebook.com.(a,b).ns.facebook.com.
We pick e.root-servers.net, one of the 13 root servers (1), and ask it about www.www.facebook.com and learn that com is delegated to 13 name servers (2), so we ask j.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 www.www.facebook.com.
facebook.com.120SOAa.ns.facebook.com. dns.facebook.com. ( 1484942477 7200 1800 604800 120 )

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