ccTLD/cz/signed.dnstester.czについて、ここに記述してください。

$ kdig -t soa signed.dnstester.cz
{{{
;; ->>HEADER<<- opcode: QUERY; status: NOERROR; id: 59103
;; Flags: qr rd ra; QUERY: 1; ANSWER: 1; AUTHORITY: 3; ADDITIONAL: 6

;; QUESTION SECTION:
;; signed.dnstester.cz.		IN	SOA

;; ANSWER SECTION:
signed.dnstester.cz.	1800	IN	SOA	a.ns.nic.cz. hostmaster.nic.cz. 1257172504 10800 3600 1209600 7200

;; AUTHORITY SECTION:
signed.dnstester.cz.	1799	IN	NS	b.ns.nic.cz.
signed.dnstester.cz.	1799	IN	NS	a.ns.nic.cz.
signed.dnstester.cz.	1799	IN	NS	d.ns.nic.cz.

;; ADDITIONAL SECTION:
a.ns.nic.cz.        	172045	IN	A	194.0.12.1
a.ns.nic.cz.        	172045	IN	AAAA	2001:678:f::1
b.ns.nic.cz.        	172045	IN	A	194.0.13.1
b.ns.nic.cz.        	172045	IN	AAAA	2001:678:10::1
d.ns.nic.cz.        	172045	IN	A	193.29.206.1
d.ns.nic.cz.        	172045	IN	AAAA	2001:678:1::1

;; Received 271 B
;; Time 2015-10-14 17:50:58 JST
;; From 127.0.0.1@53(UDP) in 971.9 ms
}}}