Whois and reverse dns lookup provided by robtex

ext.nic.cz


DNS delegation of ext.nic.cz updated:

Delegation

stepqueryauthservers
1ext.nic.cz..(g,k,d,l,e,m,j,i,f,b,h,c,a).root-servers.net.
2ext.nic.cz.cz.(c,b,d,a).ns.nic.cz.
We pick g.root-servers.net, one of the 13 root servers (1), and ask it about ext.nic.cz and learn that cz is delegated to four name servers (2), so we ask c.ns.nic.cz and get the following answer:

Authoritative answer

AUTHORITATIVE for ext.nic.cz.
nic.cz.1800SOAa.ns.nic.cz. hostmaster.nic.cz. ( 1484866203 10800 3600 1209600 7200 )

Related hostnames


Whois nic.cz
Whois root-servers.net


deep analysis of: ext.nic.cz
domain info api nic.cz

RBL listing of ext.nic.cz
ext.nic.cz graph
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