DNSSEC Debugger

Domain Name:

Time: 2025-11-10 00:40:55 UTC

Analyzing DNSSEC problems for nic.cz

DS=20326/SHA-256 is now in the chain-of-trust

	Checking DS between Trust Anchor and .
	`. IN DS ( 20326 8 2 e06d44b80b8f1d39a95c0b0d7c65d08458e880409bbc683457104237c7f8ec8d )`
	Query to c.root-servers.net for ./DNSKEY
	Received 1141 bytes from 192.33.4.12
	;; Response received from [192.33.4.12] 1141 octets ;; HEADER SECTION ;; id = 8455 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 4 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; . IN DNSKEY ;; ANSWER SECTION (4 records) . 172800 IN DNSKEY ( 257 3 8 AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3+/4RgWOq7HrxRixHlFlE xOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kvArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgC mr3EgVLrjyBxWezF0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+eoZG+ SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfdRUfhHdY6+cn8HFRm+2hM8AnX GXws9555KrUB5qihylGa8subX2Nn6UwNR1AkUTV74bU= ) ; keytag 20326 . 172800 IN DNSKEY ( 257 3 8 AwEAAa96jeuknZlaeSrvyAJj6ZHv28hhOKkx3rLGXVaC6rXTsDc449/cidltpkyGwCJNnOAlFNKF 2jBosZBU5eeHspaQWOmOElZsjICMQMC3aeHbGiShvZsx4wMYSjH8e7Vrhbu6irwCzVBApESjbUdp WWmEnhathWu1jo+siFUiRAAxm9qyJNg/wOZqqzL/dL/q8PkcRU5oUKEpUge71M3ej2/7CPqpdVwu MoTvoB+ZOT4YeGyxMvHmbrxlFzGOHOijtzN+u1TQNatX2XBuzZNQ1K+s2CXkPIZo7s6JgZyvaBev YtxPvYLw4z9mR7K2vaF18UYH9Z9GNUUeayffKC73PYc= ) ; keytag 38696 . 172800 IN DNSKEY ( 256 3 8 AwEAAeuS7hMRZ7muj1c/ew2DoavxkBw3jUG5R79pKVDI39fxvlD1HfJYGJERnXuV4SrQfUPzWw/l t5Axb0EqXL/sQ2ZyntVmwQwoSXi2l9smlIKh2UrkTmmozRCPe7GS4fZTE4Ew7AV4YprTLgVmxiGP 4unRuXkYOgQJXCIBpVCmEdUli6X2sm0i5ZilU/Q+rX3RDw+eYPP7K0cJnJ+ZnvQDy14+BFtreWl9 enNQljgGpBp26lEp1z7AbvUfzkQNVCVGaM8jEaCSALXiROlwCQMOdj+tpLXFf99kdJnTQw2cpEr1 uGs/yENAJpoGhbjZAoIkXzDUBSlfFeYz7FWzH6gIe7M= ) ; keytag 61809 . 172800 IN RRSIG ( DNSKEY 8 0 172800 20251121000000 20251031000000 20326 . qnzPUNeV8plQe0Se5Fa0uHS0Ygf4DSnEekaMeH7GQRbNhk6ntkneJFKUN+EBJQfd/JoaY//18qf4 G6YrWE/a+FwJ5oefafEhuJWhITrXMle9e4oy4Z7sjb7e1ajwGSKlcfp0Rsulv/aPlLLfl+4jUijr zzZUvUJA10LzOwswvjI16xA3HMG9rEh0mKY0RywLI+R5NkYgDzY0QGL9BMaUHWNV+eTFBmMpmg3j jKGnIg8jmFhqcypUqLXW7md/oO+k0A8QG39nGvhx7rVDUoaQd7atJH2jtzGeXW8n/XI/ncI9fSoX rLXu6NvJY5bX6dXI9ypg+sFnkF7Fd4TdZ8AasA== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 3 DNSKEY records for .
	`. 172800 IN DNSKEY ( 257 3 8 AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3+/4RgWOq7HrxRixHlFlE xOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kvArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgC mr3EgVLrjyBxWezF0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+eoZG+ SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfdRUfhHdY6+cn8HFRm+2hM8AnX GXws9555KrUB5qihylGa8subX2Nn6UwNR1AkUTV74bU= ) ; keytag 20326`
	`. 172800 IN DNSKEY ( 257 3 8 AwEAAa96jeuknZlaeSrvyAJj6ZHv28hhOKkx3rLGXVaC6rXTsDc449/cidltpkyGwCJNnOAlFNKF 2jBosZBU5eeHspaQWOmOElZsjICMQMC3aeHbGiShvZsx4wMYSjH8e7Vrhbu6irwCzVBApESjbUdp WWmEnhathWu1jo+siFUiRAAxm9qyJNg/wOZqqzL/dL/q8PkcRU5oUKEpUge71M3ej2/7CPqpdVwu MoTvoB+ZOT4YeGyxMvHmbrxlFzGOHOijtzN+u1TQNatX2XBuzZNQ1K+s2CXkPIZo7s6JgZyvaBev YtxPvYLw4z9mR7K2vaF18UYH9Z9GNUUeayffKC73PYc= ) ; keytag 38696`
	`. 172800 IN DNSKEY ( 256 3 8 AwEAAeuS7hMRZ7muj1c/ew2DoavxkBw3jUG5R79pKVDI39fxvlD1HfJYGJERnXuV4SrQfUPzWw/l t5Axb0EqXL/sQ2ZyntVmwQwoSXi2l9smlIKh2UrkTmmozRCPe7GS4fZTE4Ew7AV4YprTLgVmxiGP 4unRuXkYOgQJXCIBpVCmEdUli6X2sm0i5ZilU/Q+rX3RDw+eYPP7K0cJnJ+ZnvQDy14+BFtreWl9 enNQljgGpBp26lEp1z7AbvUfzkQNVCVGaM8jEaCSALXiROlwCQMOdj+tpLXFf99kdJnTQw2cpEr1 uGs/yENAJpoGhbjZAoIkXzDUBSlfFeYz7FWzH6gIe7M= ) ; keytag 61809`
	DNSKEY=20326/SEP is now in the chain-of-trust
	DS=20326/SHA-256 verifies DNSKEY=20326/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`. 172800 IN RRSIG ( DNSKEY 8 0 172800 20251121000000 20251031000000 20326 . qnzPUNeV8plQe0Se5Fa0uHS0Ygf4DSnEekaMeH7GQRbNhk6ntkneJFKUN+EBJQfd/JoaY//18qf4 G6YrWE/a+FwJ5oefafEhuJWhITrXMle9e4oy4Z7sjb7e1ajwGSKlcfp0Rsulv/aPlLLfl+4jUijr zzZUvUJA10LzOwswvjI16xA3HMG9rEh0mKY0RywLI+R5NkYgDzY0QGL9BMaUHWNV+eTFBmMpmg3j jKGnIg8jmFhqcypUqLXW7md/oO+k0A8QG39nGvhx7rVDUoaQd7atJH2jtzGeXW8n/XI/ncI9fSoX rLXu6NvJY5bX6dXI9ypg+sFnkF7Fd4TdZ8AasA== )`
	RRSIG=20326 and DNSKEY=20326/SEP verifies the DNSKEY RRset
	DNSKEY=38696/SEP is now in the chain-of-trust
	DNSKEY=61809 is now in the chain-of-trust
	Query to f.root-servers.net for nic.cz/A
	Received 613 bytes from 192.5.5.241
	;; Response received from [192.5.5.241] 613 octets ;; HEADER SECTION ;; id = 18389 ;; qr = 1 aa = 0 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 0 ;; nscount = 6 arcount = 9 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1472, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (6 records) cz. 172800 IN NS a.ns.nic.cz. cz. 172800 IN NS b.ns.nic.cz. cz. 172800 IN NS c.ns.nic.cz. cz. 172800 IN NS d.ns.nic.cz. cz. 86400 IN DS ( 20237 13 2 cff0f3ecdbc529c1f0031ba1840bfb835853b9209ed1e508fff48451d7b778e2 ) cz. 86400 IN RRSIG ( DS 8 1 86400 20251122170000 20251109160000 61809 . mLncE4umf56F/dAd360HfL55mYtfCWbC2XusDqaBXG3hsxszt4s2tP0T90U2IcMfv+rIEC5KT9Ha 4SD3q4VIiaofJCFUsrNRLBNutUkO56G1SAsec45ycxwytgKeXl9qD5T5T2mPmNLnylBNKkqFlg5q TboLPryCScfHnyKgwFfTlT5ovoasDwm53XvK1Dz1UbOnuTemC15h3D4OiYcmWothoC7Gb66p+d1R /iOKXsKFIfPCPv2STuFvFs+Gj3aLnimo9AB+7YYFSfcsS4RcQnjKE7ISADOdQWhVYt7P4es9raJZ QH1npcJIP89nHMhJWo33vUsU43mN4C0Vr/+Ogw== ) ;; ADDITIONAL SECTION (9 records) a.ns.nic.cz. 172800 IN A 194.0.12.1 a.ns.nic.cz. 172800 IN AAAA 2001:678:f::1 b.ns.nic.cz. 172800 IN A 194.0.13.1 b.ns.nic.cz. 172800 IN AAAA 2001:678:10::1 c.ns.nic.cz. 172800 IN A 194.0.14.1 c.ns.nic.cz. 172800 IN AAAA 2001:678:11::1 d.ns.nic.cz. 172800 IN A 193.29.206.1 d.ns.nic.cz. 172800 IN AAAA 2001:678:1::1 ;; { "EDNS-VERSION": 0 }
	Query to c.root-servers.net for cz/DNSKEY
	Received 615 bytes from 192.33.4.12
	;; Response received from [192.33.4.12] 615 octets ;; HEADER SECTION ;; id = 54132 ;; qr = 1 aa = 0 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 0 ;; nscount = 6 arcount = 9 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; cz. IN DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (6 records) cz. 172800 IN NS c.ns.nic.cz. cz. 172800 IN NS d.ns.nic.cz. cz. 172800 IN NS a.ns.nic.cz. cz. 172800 IN NS b.ns.nic.cz. cz. 86400 IN DS ( 20237 13 2 cff0f3ecdbc529c1f0031ba1840bfb835853b9209ed1e508fff48451d7b778e2 ) cz. 86400 IN RRSIG ( DS 8 1 86400 20251122170000 20251109160000 61809 . mLncE4umf56F/dAd360HfL55mYtfCWbC2XusDqaBXG3hsxszt4s2tP0T90U2IcMfv+rIEC5KT9Ha 4SD3q4VIiaofJCFUsrNRLBNutUkO56G1SAsec45ycxwytgKeXl9qD5T5T2mPmNLnylBNKkqFlg5q TboLPryCScfHnyKgwFfTlT5ovoasDwm53XvK1Dz1UbOnuTemC15h3D4OiYcmWothoC7Gb66p+d1R /iOKXsKFIfPCPv2STuFvFs+Gj3aLnimo9AB+7YYFSfcsS4RcQnjKE7ISADOdQWhVYt7P4es9raJZ QH1npcJIP89nHMhJWo33vUsU43mN4C0Vr/+Ogw== ) ;; ADDITIONAL SECTION (9 records) d.ns.nic.cz. 172800 IN A 193.29.206.1 c.ns.nic.cz. 172800 IN A 194.0.14.1 b.ns.nic.cz. 172800 IN A 194.0.13.1 a.ns.nic.cz. 172800 IN A 194.0.12.1 d.ns.nic.cz. 172800 IN AAAA 2001:678:1::1 c.ns.nic.cz. 172800 IN AAAA 2001:678:11::1 b.ns.nic.cz. 172800 IN AAAA 2001:678:10::1 a.ns.nic.cz. 172800 IN AAAA 2001:678:f::1 ;; { "EDNS-VERSION": 0 }
	Found child zone cz

	Checking DS between . and cz
	Query to l.root-servers.net for cz/DS
	Received 366 bytes from 199.7.83.42
	;; Response received from [199.7.83.42] 366 octets ;; HEADER SECTION ;; id = 13442 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; cz. IN DS ;; ANSWER SECTION (2 records) cz. 86400 IN DS ( 20237 13 2 cff0f3ecdbc529c1f0031ba1840bfb835853b9209ed1e508fff48451d7b778e2 ) cz. 86400 IN RRSIG ( DS 8 1 86400 20251122170000 20251109160000 61809 . mLncE4umf56F/dAd360HfL55mYtfCWbC2XusDqaBXG3hsxszt4s2tP0T90U2IcMfv+rIEC5KT9Ha 4SD3q4VIiaofJCFUsrNRLBNutUkO56G1SAsec45ycxwytgKeXl9qD5T5T2mPmNLnylBNKkqFlg5q TboLPryCScfHnyKgwFfTlT5ovoasDwm53XvK1Dz1UbOnuTemC15h3D4OiYcmWothoC7Gb66p+d1R /iOKXsKFIfPCPv2STuFvFs+Gj3aLnimo9AB+7YYFSfcsS4RcQnjKE7ISADOdQWhVYt7P4es9raJZ QH1npcJIP89nHMhJWo33vUsU43mN4C0Vr/+Ogw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 1 DS records for cz in the . zone
	DS=20237/SHA-256 has algorithm ECDSAP256SHA256
	Found 1 RRSIGs over DS RRset
	`cz. 86400 IN RRSIG ( DS 8 1 86400 20251122170000 20251109160000 61809 . mLncE4umf56F/dAd360HfL55mYtfCWbC2XusDqaBXG3hsxszt4s2tP0T90U2IcMfv+rIEC5KT9Ha 4SD3q4VIiaofJCFUsrNRLBNutUkO56G1SAsec45ycxwytgKeXl9qD5T5T2mPmNLnylBNKkqFlg5q TboLPryCScfHnyKgwFfTlT5ovoasDwm53XvK1Dz1UbOnuTemC15h3D4OiYcmWothoC7Gb66p+d1R /iOKXsKFIfPCPv2STuFvFs+Gj3aLnimo9AB+7YYFSfcsS4RcQnjKE7ISADOdQWhVYt7P4es9raJZ QH1npcJIP89nHMhJWo33vUsU43mN4C0Vr/+Ogw== )`
	RRSIG=61809 and DNSKEY=61809 verifies the DS RRset
	DS=20237/SHA-256 is now in the chain-of-trust
	`cz. 86400 IN DS ( 20237 13 2 cff0f3ecdbc529c1f0031ba1840bfb835853b9209ed1e508fff48451d7b778e2 )`
	Query to b.ns.nic.cz for cz/DNSKEY
	Received 289 bytes from 194.0.13.1
	;; Response received from [194.0.13.1] 289 octets ;; HEADER SECTION ;; id = 46092 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 3 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; cz. IN DNSKEY ;; ANSWER SECTION (3 records) cz. 3600 IN DNSKEY ( 256 3 13 /n7Dzks4cNDqtfKqrcpvJO8cLOTA7xVNk8zANQ7GsGjoQDRVweeEvGWV9s91DhG6ZrCrpr9aaK1Z gyyrMcq3XA== ) ; keytag 29247 cz. 3600 IN DNSKEY ( 257 3 13 nqzH7xP1QU5UOVy/VvxFSlrB/XgX9JDJzj51PzIj35TXjZTyalTlAT/f7PAfaSD5mEG1N8Vk9NmI 2nxgQqhzDQ== ) ; keytag 20237 cz. 3600 IN RRSIG ( DNSKEY 13 1 3600 20251118162134 20251104145134 20237 cz. T3z9nxsonvp79kePJN6aYJ4/h547KOf+LQCb7Pyh5QM24Yhg9fhBGz82m+bwhCxzmQQB3LKx1DeB J/1BuDo4aw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 2 DNSKEY records for cz
	`cz. 3600 IN DNSKEY ( 256 3 13 /n7Dzks4cNDqtfKqrcpvJO8cLOTA7xVNk8zANQ7GsGjoQDRVweeEvGWV9s91DhG6ZrCrpr9aaK1Z gyyrMcq3XA== ) ; keytag 29247`
	`cz. 3600 IN DNSKEY ( 257 3 13 nqzH7xP1QU5UOVy/VvxFSlrB/XgX9JDJzj51PzIj35TXjZTyalTlAT/f7PAfaSD5mEG1N8Vk9NmI 2nxgQqhzDQ== ) ; keytag 20237`
	DNSKEY=20237/SEP is now in the chain-of-trust
	DS=20237/SHA-256 verifies DNSKEY=20237/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`cz. 3600 IN RRSIG ( DNSKEY 13 1 3600 20251118162134 20251104145134 20237 cz. T3z9nxsonvp79kePJN6aYJ4/h547KOf+LQCb7Pyh5QM24Yhg9fhBGz82m+bwhCxzmQQB3LKx1DeB J/1BuDo4aw== )`
	RRSIG=20237 and DNSKEY=20237/SEP verifies the DNSKEY RRset
	DNSKEY=29247 is now in the chain-of-trust
	Query to c.ns.nic.cz for nic.cz/A
	Received 1056 bytes from 194.0.14.1
	;; Response received from [194.0.14.1] 1056 octets ;; HEADER SECTION ;; id = 24851 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 4 arcount = 13 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20251123115554 20251109102554 36986 nic.cz. +UqGzP2dZ7sitTH1RkFvBN0r4BAhyoZhAoZJsfs6ooj6sbNKgTghhCOTWY8/Zpn+SHFlFehX0S25 3tNqiDtkug== ) ;; AUTHORITY SECTION (4 records) nic.cz. 1800 IN NS d.ns.nic.cz. nic.cz. 1800 IN NS b.ns.nic.cz. nic.cz. 1800 IN NS a.ns.nic.cz. nic.cz. 1800 IN RRSIG ( NS 13 2 1800 20251123115554 20251109102554 36986 nic.cz. mNEeTv8Qq2OiQ6Gs6DSWLzz5wNO0/uSca0gIBl/EXWmEh5k9s7IkGWXr96QaVapQy8NSQMHi8Tzp ZN3rX1C6Kw== ) ;; ADDITIONAL SECTION (13 records) a.ns.nic.cz. 1800 IN A 194.0.12.1 b.ns.nic.cz. 1800 IN A 194.0.13.1 d.ns.nic.cz. 1800 IN A 193.29.206.1 a.ns.nic.cz. 1800 IN AAAA 2001:678:f::1 b.ns.nic.cz. 1800 IN AAAA 2001:678:10::1 d.ns.nic.cz. 1800 IN AAAA 2001:678:1::1 a.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 1VG2pBPCBv8zqSkCztn9cj0IYwDcicnbJDj8YwAJFJJGTEegkHNMPsXAZt1yatRabQk1AUxlzSZK ZLjWTWJP3Q== ) a.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20251123115554 20251109102554 36986 nic.cz. srQn4+dEHoZsv3iT0A5zG+9gPVmdUAXKAMIzlx9at5mqvH868nNGIOc/dNBNpzgYWmJp57LIvseD TtceLPhXMw== ) b.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 8B2OWE2s2m3x9LMG3Jz4mxP8xtzT9Ays+nMG8Hqp4jZqz8tu0SH3YFLjgLdBDsK7Szl+m2T7HMFb 5fgsiScl5Q== ) b.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 92lkB/b/hkQTq4aHgT0mgL7Oac6NODYwpMfQ6KYbo22M+dRjU9/YYOTjHXQq/RnpXXYroVPE9vq7 x1+7+H+uzw== ) d.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20251123115554 20251109102554 36986 nic.cz. /W5xhgN7zb/NXJ9UfjGY5EmRoyICPT/i8oqIpCIiLBFGr3mJuW/WVg7JpJ4yKsr56Jtd/B9OHJwl nR7OmVMSfA== ) d.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 8nrtMXfS9OCHcuu2MB4/6lJWKKlpgawfrB9f2MgPdcEWWOreoe9syZW+JmfumN8GDSNuC6HTVk0Q 3j7weJD0kg== ) ;; { "EDNS-VERSION": 0 }
	c.ns.nic.cz is authoritative for nic.cz
	Query to d.ns.nic.cz for nic.cz/DNSKEY
	Received 297 bytes from 193.29.206.1
	;; Response received from [193.29.206.1] 297 octets ;; HEADER SECTION ;; id = 24896 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 3 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN DNSKEY ;; ANSWER SECTION (3 records) nic.cz. 1800 IN DNSKEY ( 256 3 13 tVq4mU8qpv5EoXZniwOjW/rTA1nSl2XPPPCBKUDpU4kgYLS8rui3eOLV6750rvJNYBNxBzQvSHhp 6aKsySAhPw== ) ; keytag 36986 nic.cz. 1800 IN DNSKEY ( 257 3 13 f2hk4mhAPz0mPCOAuX7PxC0et4JVPhthlO7jiRXF8qkRMksnilBYb6k5wEYZMLfOw8+GKP1BfitE oTD04ijZfQ== ) ; keytag 43320 nic.cz. 1800 IN RRSIG ( DNSKEY 13 2 1800 20251123132554 20251109115554 43320 nic.cz. 9yu7GLoZq1BLQ0rEwftZzlHcTkecKeCcrq+SdYA4Htgdu5tSo8xr6eOkJvD5tvAMPXEDssdvspga +Zzk7eKWIA== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found child zone nic.cz
	Attempting to learn nameservers for nic.cz
	Query to b.ns.nic.cz for nic.cz/NS
	Received 932 bytes from 194.0.13.1
	;; Response received from [194.0.13.1] 932 octets ;; HEADER SECTION ;; id = 43765 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 4 ;; nscount = 0 arcount = 13 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN NS ;; ANSWER SECTION (4 records) nic.cz. 1800 IN NS a.ns.nic.cz. nic.cz. 1800 IN NS b.ns.nic.cz. nic.cz. 1800 IN NS d.ns.nic.cz. nic.cz. 1800 IN RRSIG ( NS 13 2 1800 20251123115554 20251109102554 36986 nic.cz. mNEeTv8Qq2OiQ6Gs6DSWLzz5wNO0/uSca0gIBl/EXWmEh5k9s7IkGWXr96QaVapQy8NSQMHi8Tzp ZN3rX1C6Kw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (13 records) a.ns.nic.cz. 1800 IN A 194.0.12.1 a.ns.nic.cz. 1800 IN AAAA 2001:678:f::1 b.ns.nic.cz. 1800 IN A 194.0.13.1 b.ns.nic.cz. 1800 IN AAAA 2001:678:10::1 d.ns.nic.cz. 1800 IN A 193.29.206.1 d.ns.nic.cz. 1800 IN AAAA 2001:678:1::1 a.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 1VG2pBPCBv8zqSkCztn9cj0IYwDcicnbJDj8YwAJFJJGTEegkHNMPsXAZt1yatRabQk1AUxlzSZK ZLjWTWJP3Q== ) a.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20251123115554 20251109102554 36986 nic.cz. srQn4+dEHoZsv3iT0A5zG+9gPVmdUAXKAMIzlx9at5mqvH868nNGIOc/dNBNpzgYWmJp57LIvseD TtceLPhXMw== ) b.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 8B2OWE2s2m3x9LMG3Jz4mxP8xtzT9Ays+nMG8Hqp4jZqz8tu0SH3YFLjgLdBDsK7Szl+m2T7HMFb 5fgsiScl5Q== ) b.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 92lkB/b/hkQTq4aHgT0mgL7Oac6NODYwpMfQ6KYbo22M+dRjU9/YYOTjHXQq/RnpXXYroVPE9vq7 x1+7+H+uzw== ) d.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20251123115554 20251109102554 36986 nic.cz. /W5xhgN7zb/NXJ9UfjGY5EmRoyICPT/i8oqIpCIiLBFGr3mJuW/WVg7JpJ4yKsr56Jtd/B9OHJwl nR7OmVMSfA== ) d.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 8nrtMXfS9OCHcuu2MB4/6lJWKKlpgawfrB9f2MgPdcEWWOreoe9syZW+JmfumN8GDSNuC6HTVk0Q 3j7weJD0kg== ) ;; { "EDNS-VERSION": 0 }
	Found nic.cz nameservers: a.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz

nic.cz

	Checking DS between cz and nic.cz
	Query to d.ns.nic.cz for nic.cz/DS
	Received 181 bytes from 193.29.206.1
	;; Response received from [193.29.206.1] 181 octets ;; HEADER SECTION ;; id = 8911 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN DS ;; ANSWER SECTION (2 records) nic.cz. 3600 IN DS ( 43320 13 2 5cdbae76651fd9a04194aeb1bbb205d5a947c8674eb198a32a3ba5a612b5d099 ) nic.cz. 3600 IN RRSIG ( DS 13 2 3600 20251113214711 20251030201711 29247 cz. nd6U87atRKRDs4GeXwHfh1fPZto82xVYcieTRBx79gAycrULWQWTZfn+RVwOFENdCteGZrkLAeOA r7OLJnTV9g== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 1 DS records for nic.cz in the cz zone
	DS=43320/SHA-256 has algorithm ECDSAP256SHA256
	Found 1 RRSIGs over DS RRset
	`nic.cz. 3600 IN RRSIG ( DS 13 2 3600 20251113214711 20251030201711 29247 cz. nd6U87atRKRDs4GeXwHfh1fPZto82xVYcieTRBx79gAycrULWQWTZfn+RVwOFENdCteGZrkLAeOA r7OLJnTV9g== )`
	RRSIG=29247 and DNSKEY=29247 verifies the DS RRset
	DS=43320/SHA-256 is now in the chain-of-trust
	`nic.cz. 3600 IN DS ( 43320 13 2 5cdbae76651fd9a04194aeb1bbb205d5a947c8674eb198a32a3ba5a612b5d099 )`
	Query to a.ns.nic.cz for nic.cz/DNSKEY
	Received 297 bytes from 194.0.12.1
	;; Response received from [194.0.12.1] 297 octets ;; HEADER SECTION ;; id = 19266 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 3 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN DNSKEY ;; ANSWER SECTION (3 records) nic.cz. 1800 IN DNSKEY ( 256 3 13 tVq4mU8qpv5EoXZniwOjW/rTA1nSl2XPPPCBKUDpU4kgYLS8rui3eOLV6750rvJNYBNxBzQvSHhp 6aKsySAhPw== ) ; keytag 36986 nic.cz. 1800 IN DNSKEY ( 257 3 13 f2hk4mhAPz0mPCOAuX7PxC0et4JVPhthlO7jiRXF8qkRMksnilBYb6k5wEYZMLfOw8+GKP1BfitE oTD04ijZfQ== ) ; keytag 43320 nic.cz. 1800 IN RRSIG ( DNSKEY 13 2 1800 20251123132554 20251109115554 43320 nic.cz. 9yu7GLoZq1BLQ0rEwftZzlHcTkecKeCcrq+SdYA4Htgdu5tSo8xr6eOkJvD5tvAMPXEDssdvspga +Zzk7eKWIA== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 2 DNSKEY records for nic.cz
	`nic.cz. 1800 IN DNSKEY ( 256 3 13 tVq4mU8qpv5EoXZniwOjW/rTA1nSl2XPPPCBKUDpU4kgYLS8rui3eOLV6750rvJNYBNxBzQvSHhp 6aKsySAhPw== ) ; keytag 36986`
	`nic.cz. 1800 IN DNSKEY ( 257 3 13 f2hk4mhAPz0mPCOAuX7PxC0et4JVPhthlO7jiRXF8qkRMksnilBYb6k5wEYZMLfOw8+GKP1BfitE oTD04ijZfQ== ) ; keytag 43320`
	DNSKEY=43320/SEP is now in the chain-of-trust
	DS=43320/SHA-256 verifies DNSKEY=43320/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`nic.cz. 1800 IN RRSIG ( DNSKEY 13 2 1800 20251123132554 20251109115554 43320 nic.cz. 9yu7GLoZq1BLQ0rEwftZzlHcTkecKeCcrq+SdYA4Htgdu5tSo8xr6eOkJvD5tvAMPXEDssdvspga +Zzk7eKWIA== )`
	RRSIG=43320 and DNSKEY=43320/SEP verifies the DNSKEY RRset
	DNSKEY=36986 is now in the chain-of-trust
	Query to d.ns.nic.cz for nic.cz/A
	Received 1056 bytes from 193.29.206.1
	;; Response received from [193.29.206.1] 1056 octets ;; HEADER SECTION ;; id = 49663 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 4 arcount = 13 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20251123115554 20251109102554 36986 nic.cz. +UqGzP2dZ7sitTH1RkFvBN0r4BAhyoZhAoZJsfs6ooj6sbNKgTghhCOTWY8/Zpn+SHFlFehX0S25 3tNqiDtkug== ) ;; AUTHORITY SECTION (4 records) nic.cz. 1800 IN NS a.ns.nic.cz. nic.cz. 1800 IN NS b.ns.nic.cz. nic.cz. 1800 IN NS d.ns.nic.cz. nic.cz. 1800 IN RRSIG ( NS 13 2 1800 20251123115554 20251109102554 36986 nic.cz. mNEeTv8Qq2OiQ6Gs6DSWLzz5wNO0/uSca0gIBl/EXWmEh5k9s7IkGWXr96QaVapQy8NSQMHi8Tzp ZN3rX1C6Kw== ) ;; ADDITIONAL SECTION (13 records) a.ns.nic.cz. 1800 IN A 194.0.12.1 b.ns.nic.cz. 1800 IN A 194.0.13.1 d.ns.nic.cz. 1800 IN A 193.29.206.1 a.ns.nic.cz. 1800 IN AAAA 2001:678:f::1 b.ns.nic.cz. 1800 IN AAAA 2001:678:10::1 d.ns.nic.cz. 1800 IN AAAA 2001:678:1::1 a.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 1VG2pBPCBv8zqSkCztn9cj0IYwDcicnbJDj8YwAJFJJGTEegkHNMPsXAZt1yatRabQk1AUxlzSZK ZLjWTWJP3Q== ) a.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20251123115554 20251109102554 36986 nic.cz. srQn4+dEHoZsv3iT0A5zG+9gPVmdUAXKAMIzlx9at5mqvH868nNGIOc/dNBNpzgYWmJp57LIvseD TtceLPhXMw== ) b.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 8B2OWE2s2m3x9LMG3Jz4mxP8xtzT9Ays+nMG8Hqp4jZqz8tu0SH3YFLjgLdBDsK7Szl+m2T7HMFb 5fgsiScl5Q== ) b.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 92lkB/b/hkQTq4aHgT0mgL7Oac6NODYwpMfQ6KYbo22M+dRjU9/YYOTjHXQq/RnpXXYroVPE9vq7 x1+7+H+uzw== ) d.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20251123115554 20251109102554 36986 nic.cz. /W5xhgN7zb/NXJ9UfjGY5EmRoyICPT/i8oqIpCIiLBFGr3mJuW/WVg7JpJ4yKsr56Jtd/B9OHJwl nR7OmVMSfA== ) d.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 8nrtMXfS9OCHcuu2MB4/6lJWKKlpgawfrB9f2MgPdcEWWOreoe9syZW+JmfumN8GDSNuC6HTVk0Q 3j7weJD0kg== ) ;; { "EDNS-VERSION": 0 }
	d.ns.nic.cz is authoritative for nic.cz
	Found RRSIG signed by nic.cz zone
	Query to a.ns.nic.cz for nic.cz/SOA
	Received 189 bytes from 194.0.12.1
	;; Response received from [194.0.12.1] 189 octets ;; HEADER SECTION ;; id = 16412 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN SOA ;; ANSWER SECTION (2 records) nic.cz. 1800 IN SOA ( a.ns.nic.cz. hostmaster.nic.cz. 1762701165 ;serial 14400 ;refresh 3600 ;retry 1209600 ;expire 7200 ;minimum ) nic.cz. 1800 IN RRSIG ( SOA 13 2 1800 20251123151245 20251109134245 36986 nic.cz. eimySzkT5003N+d0JXrLXkfI7pIcnWetgCtvj7dl9j8r2E9RExNYOArOH/q0Bzhw51UKPDl14UyV fQFDdR2pEQ== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Query to b.ns.nic.cz for nic.cz/SOA
	Received 189 bytes from 194.0.13.1
	;; Response received from [194.0.13.1] 189 octets ;; HEADER SECTION ;; id = 2680 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN SOA ;; ANSWER SECTION (2 records) nic.cz. 1800 IN SOA ( a.ns.nic.cz. hostmaster.nic.cz. 1762701165 ;serial 14400 ;refresh 3600 ;retry 1209600 ;expire 7200 ;minimum ) nic.cz. 1800 IN RRSIG ( SOA 13 2 1800 20251123151245 20251109134245 36986 nic.cz. eimySzkT5003N+d0JXrLXkfI7pIcnWetgCtvj7dl9j8r2E9RExNYOArOH/q0Bzhw51UKPDl14UyV fQFDdR2pEQ== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Query to d.ns.nic.cz for nic.cz/A
	Received 1056 bytes from 193.29.206.1
	;; Response received from [193.29.206.1] 1056 octets ;; HEADER SECTION ;; id = 31887 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 4 arcount = 13 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20251123115554 20251109102554 36986 nic.cz. +UqGzP2dZ7sitTH1RkFvBN0r4BAhyoZhAoZJsfs6ooj6sbNKgTghhCOTWY8/Zpn+SHFlFehX0S25 3tNqiDtkug== ) ;; AUTHORITY SECTION (4 records) nic.cz. 1800 IN NS b.ns.nic.cz. nic.cz. 1800 IN NS a.ns.nic.cz. nic.cz. 1800 IN NS d.ns.nic.cz. nic.cz. 1800 IN RRSIG ( NS 13 2 1800 20251123115554 20251109102554 36986 nic.cz. mNEeTv8Qq2OiQ6Gs6DSWLzz5wNO0/uSca0gIBl/EXWmEh5k9s7IkGWXr96QaVapQy8NSQMHi8Tzp ZN3rX1C6Kw== ) ;; ADDITIONAL SECTION (13 records) a.ns.nic.cz. 1800 IN A 194.0.12.1 b.ns.nic.cz. 1800 IN A 194.0.13.1 d.ns.nic.cz. 1800 IN A 193.29.206.1 a.ns.nic.cz. 1800 IN AAAA 2001:678:f::1 b.ns.nic.cz. 1800 IN AAAA 2001:678:10::1 d.ns.nic.cz. 1800 IN AAAA 2001:678:1::1 a.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 1VG2pBPCBv8zqSkCztn9cj0IYwDcicnbJDj8YwAJFJJGTEegkHNMPsXAZt1yatRabQk1AUxlzSZK ZLjWTWJP3Q== ) a.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20251123115554 20251109102554 36986 nic.cz. srQn4+dEHoZsv3iT0A5zG+9gPVmdUAXKAMIzlx9at5mqvH868nNGIOc/dNBNpzgYWmJp57LIvseD TtceLPhXMw== ) b.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 8B2OWE2s2m3x9LMG3Jz4mxP8xtzT9Ays+nMG8Hqp4jZqz8tu0SH3YFLjgLdBDsK7Szl+m2T7HMFb 5fgsiScl5Q== ) b.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 92lkB/b/hkQTq4aHgT0mgL7Oac6NODYwpMfQ6KYbo22M+dRjU9/YYOTjHXQq/RnpXXYroVPE9vq7 x1+7+H+uzw== ) d.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20251123115554 20251109102554 36986 nic.cz. /W5xhgN7zb/NXJ9UfjGY5EmRoyICPT/i8oqIpCIiLBFGr3mJuW/WVg7JpJ4yKsr56Jtd/B9OHJwl nR7OmVMSfA== ) d.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20251123115554 20251109102554 36986 nic.cz. 8nrtMXfS9OCHcuu2MB4/6lJWKKlpgawfrB9f2MgPdcEWWOreoe9syZW+JmfumN8GDSNuC6HTVk0Q 3j7weJD0kg== ) ;; { "EDNS-VERSION": 0 }
	nic.cz A RR has value 217.31.205.50
	Found 1 RRSIGs over A RRset
	`nic.cz. 1800 IN RRSIG ( A 13 2 1800 20251123115554 20251109102554 36986 nic.cz. +UqGzP2dZ7sitTH1RkFvBN0r4BAhyoZhAoZJsfs6ooj6sbNKgTghhCOTWY8/Zpn+SHFlFehX0S25 3tNqiDtkug== )`
	RRSIG=36986 and DNSKEY=36986 verifies the A RRset

nic.cz

	Query to a.ns.nic.cz for nic.cz/A
	Received 153 bytes from 194.0.12.1
	;; Response received from [194.0.12.1] 153 octets ;; HEADER SECTION ;; id = 28259 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20251123115554 20251109102554 36986 nic.cz. +UqGzP2dZ7sitTH1RkFvBN0r4BAhyoZhAoZJsfs6ooj6sbNKgTghhCOTWY8/Zpn+SHFlFehX0S25 3tNqiDtkug== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	a.ns.nic.cz is authoritative for nic.cz
	Found RRSIG signed by nic.cz zone
	Query to a.ns.nic.cz for nic.cz/A
	Received 153 bytes from 194.0.12.1
	;; Response received from [194.0.12.1] 153 octets ;; HEADER SECTION ;; id = 25616 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20251123115554 20251109102554 36986 nic.cz. +UqGzP2dZ7sitTH1RkFvBN0r4BAhyoZhAoZJsfs6ooj6sbNKgTghhCOTWY8/Zpn+SHFlFehX0S25 3tNqiDtkug== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	nic.cz A RR has value 217.31.205.50
	Found 1 RRSIGs over A RRset
	`nic.cz. 1800 IN RRSIG ( A 13 2 1800 20251123115554 20251109102554 36986 nic.cz. +UqGzP2dZ7sitTH1RkFvBN0r4BAhyoZhAoZJsfs6ooj6sbNKgTghhCOTWY8/Zpn+SHFlFehX0S25 3tNqiDtkug== )`
	RRSIG=36986 and DNSKEY=36986 verifies the A RRset

nic.cz

	Query to b.ns.nic.cz for nic.cz/A
	Received 153 bytes from 194.0.13.1
	;; Response received from [194.0.13.1] 153 octets ;; HEADER SECTION ;; id = 22071 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20251123115554 20251109102554 36986 nic.cz. +UqGzP2dZ7sitTH1RkFvBN0r4BAhyoZhAoZJsfs6ooj6sbNKgTghhCOTWY8/Zpn+SHFlFehX0S25 3tNqiDtkug== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	b.ns.nic.cz is authoritative for nic.cz
	Found RRSIG signed by nic.cz zone
	Query to b.ns.nic.cz for nic.cz/A
	Received 153 bytes from 194.0.13.1
	;; Response received from [194.0.13.1] 153 octets ;; HEADER SECTION ;; id = 7309 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20251123115554 20251109102554 36986 nic.cz. +UqGzP2dZ7sitTH1RkFvBN0r4BAhyoZhAoZJsfs6ooj6sbNKgTghhCOTWY8/Zpn+SHFlFehX0S25 3tNqiDtkug== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	nic.cz A RR has value 217.31.205.50
	Found 1 RRSIGs over A RRset
	`nic.cz. 1800 IN RRSIG ( A 13 2 1800 20251123115554 20251109102554 36986 nic.cz. +UqGzP2dZ7sitTH1RkFvBN0r4BAhyoZhAoZJsfs6ooj6sbNKgTghhCOTWY8/Zpn+SHFlFehX0S25 3tNqiDtkug== )`
	RRSIG=36986 and DNSKEY=36986 verifies the A RRset

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