DNSSEC Analyzer

Domain Name:

Time: 2021-01-17 09:48:11 UTC, NTP stratum 4

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 j.root-servers.net for ./DNSKEY
	Received 864 bytes from 192.58.128.30
	;; Answer received from 192.58.128.30 (864 bytes) ;; HEADER SECTION ;; id = 28563 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 3 nscount = 0 arcount = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option: ;; QUESTION SECTION (1 record) ;; . IN DNSKEY ;; ANSWER SECTION (3 records) . 172800 IN DNSKEY ( 256 3 8 AwEAAbKGKkqc1VAvQr48iPf9Nd39f337MitggxF0AB9kLKRNSuq9joOEPC/R6PD/4lTzUms8U9oP +aiF0rVC2rGOKSdOLxPHRLA3ameMFT2/3bmVCFsRsn03IVTdN5VUAfczjqjmA0t9NM7bbN5oVzuQ L3P1FyQb1q6HX4M1qg+htMNEd9PdlPLMFcrUg5fcYtTr2llVkO1Xo3lAdrjmmxfGeIyQnskpwPyW 88J527DEytmgPo5KzLBYLMoL2Q41PK0ul0rs7yN+g5IG4LnJOcjew1yrmHXrp/OzrpsO4FkicufY t/ygfQKkT5HYbr/yFgeZAfaF80nYyc7wgDYxOeHdiRk= ) ; Key ID = 42351 . 172800 IN DNSKEY ( 257 3 8 AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3+/4RgWOq7HrxRixHlFlE xOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kvArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgC mr3EgVLrjyBxWezF0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+eoZG+ SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfdRUfhHdY6+cn8HFRm+2hM8AnX GXws9555KrUB5qihylGa8subX2Nn6UwNR1AkUTV74bU= ) ; Key ID = 20326 . 172800 IN RRSIG ( DNSKEY 8 0 172800 20210201000000 20210111000000 20326 . nPlFYAyI+iUNytZu71KcMwdvR1ubjVRP6Hp7E/owRaLhHhOON4gJsezf4UoBeq75yeDBkzRA2pwD 7g6XVY/qsQM9WDuzTYQJWqvSGDj0BYF5bS482kH8Y3N/Ly/jlQCSFIlCbTjAUBHTdYZji6esQDqi Wk2SzB38ZLsxgey439JkhxUzMh5520zLCiOnuZs9Iy0KLoy4ss7R/GiQjcYEIi0zScXZXcDBr3qd 2HB/BL98F2MDeshzQ/VRimxsZ3RH3ERNPS1GurmjY/mTUZxX3ITj1C57PI2bgurv1b7dyp1zLpmZ lIz/21lQwvT3wESGF44J1YmBDheYoG44GY9RVg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	Found 2 DNSKEY records for .
	`. 172800 IN DNSKEY ( 256 3 8 AwEAAbKGKkqc1VAvQr48iPf9Nd39f337MitggxF0AB9kLKRNSuq9joOEPC/R6PD/4lTzUms8U9oP +aiF0rVC2rGOKSdOLxPHRLA3ameMFT2/3bmVCFsRsn03IVTdN5VUAfczjqjmA0t9NM7bbN5oVzuQ L3P1FyQb1q6HX4M1qg+htMNEd9PdlPLMFcrUg5fcYtTr2llVkO1Xo3lAdrjmmxfGeIyQnskpwPyW 88J527DEytmgPo5KzLBYLMoL2Q41PK0ul0rs7yN+g5IG4LnJOcjew1yrmHXrp/OzrpsO4FkicufY t/ygfQKkT5HYbr/yFgeZAfaF80nYyc7wgDYxOeHdiRk= ) ; Key ID = 42351`
	`. 172800 IN DNSKEY ( 257 3 8 AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3+/4RgWOq7HrxRixHlFlE xOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kvArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgC mr3EgVLrjyBxWezF0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+eoZG+ SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfdRUfhHdY6+cn8HFRm+2hM8AnX GXws9555KrUB5qihylGa8subX2Nn6UwNR1AkUTV74bU= ) ; Key ID = 20326`
	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 20210201000000 20210111000000 20326 . nPlFYAyI+iUNytZu71KcMwdvR1ubjVRP6Hp7E/owRaLhHhOON4gJsezf4UoBeq75yeDBkzRA2pwD 7g6XVY/qsQM9WDuzTYQJWqvSGDj0BYF5bS482kH8Y3N/Ly/jlQCSFIlCbTjAUBHTdYZji6esQDqi Wk2SzB38ZLsxgey439JkhxUzMh5520zLCiOnuZs9Iy0KLoy4ss7R/GiQjcYEIi0zScXZXcDBr3qd 2HB/BL98F2MDeshzQ/VRimxsZ3RH3ERNPS1GurmjY/mTUZxX3ITj1C57PI2bgurv1b7dyp1zLpmZ lIz/21lQwvT3wESGF44J1YmBDheYoG44GY9RVg== )`
	RRSIG=20326 and DNSKEY=20326/SEP verifies the DNSKEY RRset
	DNSKEY=42351 is now in the chain-of-trust
	Query to j.root-servers.net for nic.cz/A
	Received 613 bytes from 192.58.128.30
	;; Answer received from 192.58.128.30 (613 bytes) ;; HEADER SECTION ;; id = 18579 ;; qr = 1 aa = 0 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 0 nscount = 6 arcount = 9 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1472 ;; option: ;; 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 20210130050000 20210117040000 42351 . UW5bu48qVPp33OBU3TSl3+MetDob2uuotBeU60h89e0+J0QGR3Dtsbeb1uxF4W6KPtEb5na5YRis Ez5pyaytoE7aT3lCyuYDelw7jInXDSgwvimLc/ZDNGSOCScS0g1Qtkz+zCjNOrUk6nXnoRI0A0U3 6lWMP1MnLi9WqJG0pghjPwi2LcMhXKxuNxo8uTbvHLU1gIirLRLdUE/X0sF7718R7bsC74LOkoJO AVXw4HweWzhOrt0JMNq/aSd661pqsLciQeFqcsBVq0EHI92VTYJmxHNGGth3Mo1E4+wCWKFGziyT nd2ngpyyOHKQGb0NtDxlUDzRx51F4rYMkIX5ow== ) ;; ADDITIONAL SECTION (9 records) a.ns.nic.cz. 172800 IN A 194.0.12.1 b.ns.nic.cz. 172800 IN A 194.0.13.1 c.ns.nic.cz. 172800 IN A 194.0.14.1 d.ns.nic.cz. 172800 IN A 193.29.206.1 a.ns.nic.cz. 172800 IN AAAA 2001:678:f::1 b.ns.nic.cz. 172800 IN AAAA 2001:678:10::1 c.ns.nic.cz. 172800 IN AAAA 2001:678:11::1 d.ns.nic.cz. 172800 IN AAAA 2001:678:1::1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1472 ;; option:
	Query to i.root-servers.net for cz/DNSKEY
	Received 615 bytes from 192.36.148.17
	;; Answer received from 192.36.148.17 (615 bytes) ;; HEADER SECTION ;; id = 63667 ;; qr = 1 aa = 0 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 0 nscount = 6 arcount = 9 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option: ;; 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 a.ns.nic.cz. cz. 172800 IN NS b.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 20210130050000 20210117040000 42351 . UW5bu48qVPp33OBU3TSl3+MetDob2uuotBeU60h89e0+J0QGR3Dtsbeb1uxF4W6KPtEb5na5YRis Ez5pyaytoE7aT3lCyuYDelw7jInXDSgwvimLc/ZDNGSOCScS0g1Qtkz+zCjNOrUk6nXnoRI0A0U3 6lWMP1MnLi9WqJG0pghjPwi2LcMhXKxuNxo8uTbvHLU1gIirLRLdUE/X0sF7718R7bsC74LOkoJO AVXw4HweWzhOrt0JMNq/aSd661pqsLciQeFqcsBVq0EHI92VTYJmxHNGGth3Mo1E4+wCWKFGziyT nd2ngpyyOHKQGb0NtDxlUDzRx51F4rYMkIX5ow== ) ;; 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 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	Found child zone cz

	Checking DS between . and cz
	Query to f.root-servers.net for cz/DS
	Received 366 bytes from 192.5.5.241
	;; Answer received from 192.5.5.241 (366 bytes) ;; HEADER SECTION ;; id = 771 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 2 nscount = 0 arcount = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1472 ;; option: ;; 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 20210130050000 20210117040000 42351 . UW5bu48qVPp33OBU3TSl3+MetDob2uuotBeU60h89e0+J0QGR3Dtsbeb1uxF4W6KPtEb5na5YRis Ez5pyaytoE7aT3lCyuYDelw7jInXDSgwvimLc/ZDNGSOCScS0g1Qtkz+zCjNOrUk6nXnoRI0A0U3 6lWMP1MnLi9WqJG0pghjPwi2LcMhXKxuNxo8uTbvHLU1gIirLRLdUE/X0sF7718R7bsC74LOkoJO AVXw4HweWzhOrt0JMNq/aSd661pqsLciQeFqcsBVq0EHI92VTYJmxHNGGth3Mo1E4+wCWKFGziyT nd2ngpyyOHKQGb0NtDxlUDzRx51F4rYMkIX5ow== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1472 ;; option:
	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 20210130050000 20210117040000 42351 . UW5bu48qVPp33OBU3TSl3+MetDob2uuotBeU60h89e0+J0QGR3Dtsbeb1uxF4W6KPtEb5na5YRis Ez5pyaytoE7aT3lCyuYDelw7jInXDSgwvimLc/ZDNGSOCScS0g1Qtkz+zCjNOrUk6nXnoRI0A0U3 6lWMP1MnLi9WqJG0pghjPwi2LcMhXKxuNxo8uTbvHLU1gIirLRLdUE/X0sF7718R7bsC74LOkoJO AVXw4HweWzhOrt0JMNq/aSd661pqsLciQeFqcsBVq0EHI92VTYJmxHNGGth3Mo1E4+wCWKFGziyT nd2ngpyyOHKQGb0NtDxlUDzRx51F4rYMkIX5ow== )`
	RRSIG=42351 and DNSKEY=42351 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 467 bytes from 194.0.13.1
	;; Answer received from 194.0.13.1 (467 bytes) ;; HEADER SECTION ;; id = 10952 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 5 nscount = 0 arcount = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; cz. IN DNSKEY ;; ANSWER SECTION (5 records) cz. 18000 IN DNSKEY ( 256 3 13 FgJeFIHbmYUdhkRxM5E8D0YtL/0lGBdq+Vd/Fi9Vy85jn7JkPftH7TbJCssZ7swHbLcGJJIKuZTz SVnwEJs5GA== ) ; Key ID = 42042 cz. 18000 IN DNSKEY ( 256 3 13 WcjHTMS5U/iD+6j/o5geXcW5PnJ4cJGjbfjjUmDPCdfQIZHpypJefc4gWxD99DoAT2UDYT7FiVNo evYrefJbnA== ) ; Key ID = 12877 cz. 18000 IN DNSKEY ( 257 3 13 nqzH7xP1QU5UOVy/VvxFSlrB/XgX9JDJzj51PzIj35TXjZTyalTlAT/f7PAfaSD5mEG1N8Vk9NmI 2nxgQqhzDQ== ) ; Key ID = 20237 cz. 18000 IN RRSIG ( DNSKEY 13 1 18000 20210123000000 20210116000000 20237 cz. hNkPLVGNEiOTG1ZaxL83GKUizj+hcFYppe9ne8yJuON0pWXaXym6gb3+1721/FL+ffRvN9xaU1bp J1XXoBzSyg== ) cz. 18000 IN RRSIG ( DNSKEY 13 1 18000 20210129174840 20210117080536 12877 cz. l3PmhSsxISxad8Gig8MekJbPcDWUFt9g+SBGWEBjFQ7gnN5GpqETg20WTzCsvQvNzolLfDdmqEpQ dlNr+y2smQ== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Found 3 DNSKEY records for cz
	`cz. 18000 IN DNSKEY ( 256 3 13 FgJeFIHbmYUdhkRxM5E8D0YtL/0lGBdq+Vd/Fi9Vy85jn7JkPftH7TbJCssZ7swHbLcGJJIKuZTz SVnwEJs5GA== ) ; Key ID = 42042`
	`cz. 18000 IN DNSKEY ( 256 3 13 WcjHTMS5U/iD+6j/o5geXcW5PnJ4cJGjbfjjUmDPCdfQIZHpypJefc4gWxD99DoAT2UDYT7FiVNo evYrefJbnA== ) ; Key ID = 12877`
	`cz. 18000 IN DNSKEY ( 257 3 13 nqzH7xP1QU5UOVy/VvxFSlrB/XgX9JDJzj51PzIj35TXjZTyalTlAT/f7PAfaSD5mEG1N8Vk9NmI 2nxgQqhzDQ== ) ; Key ID = 20237`
	DNSKEY=20237/SEP is now in the chain-of-trust
	DS=20237/SHA-256 verifies DNSKEY=20237/SEP
	Found 2 RRSIGs over DNSKEY RRset
	`cz. 18000 IN RRSIG ( DNSKEY 13 1 18000 20210123000000 20210116000000 20237 cz. hNkPLVGNEiOTG1ZaxL83GKUizj+hcFYppe9ne8yJuON0pWXaXym6gb3+1721/FL+ffRvN9xaU1bp J1XXoBzSyg== )`
	`cz. 18000 IN RRSIG ( DNSKEY 13 1 18000 20210129174840 20210117080536 12877 cz. l3PmhSsxISxad8Gig8MekJbPcDWUFt9g+SBGWEBjFQ7gnN5GpqETg20WTzCsvQvNzolLfDdmqEpQ dlNr+y2smQ== )`
	RRSIG=20237 and DNSKEY=20237/SEP verifies the DNSKEY RRset
	RRSIG=12877 and DNSKEY=12877 verifies the DNSKEY RRset
	DNSKEY=42042 is now in the chain-of-trust
	DNSKEY=12877 is now in the chain-of-trust
	Query to b.ns.nic.cz for nic.cz/A
	Received 1050 bytes from 194.0.13.1
	;; Answer received from 194.0.13.1 (1050 bytes) ;; HEADER SECTION ;; id = 65392 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 2 nscount = 4 arcount = 13 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; 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 20210130225514 20210116212514 48887 nic.cz. dUmDFqvwSoo2P25NieeQGR154aNxOrofS7q8jHJdHUvgZhdfTpQ36QLopoEsH7kKKYRP16bccvP7 eIpSq1x7Wg== ) ;; AUTHORITY SECTION (4 records) nic.cz. 1800 IN NS a.ns.nic.cz. nic.cz. 1800 IN NS d.ns.nic.cz. nic.cz. 1800 IN NS b.ns.nic.cz. nic.cz. 1800 IN RRSIG ( NS 13 2 1800 20210130225514 20210116212514 48887 nic.cz. RvsegrxdUQTXm1Jxj5cu+tgkMPowcx+HaEmamrhGqSP65gbzueVEwm4leR3j7MXfMYyB2ILI63tx WesDF3O86Q== ) ;; 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 20210130225514 20210116212514 48887 nic.cz. iqYMzWnem9Nq7QvCc0s7sM9oZ81SU+aBKNTFVf53rr43xU8B+Nu85uzGDqEzmh/MZUrq7EM7XbXw +cBG3PGlfA== ) a.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20210130225514 20210116212514 48887 nic.cz. LDNhqbKDh2LV8rzOq0fpsBoh/la0ZJeqgyD+uxq+Qx2E2bJCIYgYnusv3OFXor8IIdTu12kFNcw1 m0izv6WaIw== ) b.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20210130225514 20210116212514 48887 nic.cz. I78VAgUmuKA8LmTy9fSR3J7U9i8bmQTH+yT3E8ukHp6uyKnu+Y/lbKV7Qm5nDnD5vNrRTzeuqq72 H6caFWCLGg== ) b.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20210130225514 20210116212514 48887 nic.cz. ctbWPpHFywrNgdzz5xIplt9gvpX3x9xEogaqmNiu0ELWEEfY4OV1AsVGCAHxDLhOJYbeplU5bfGM zrm3mGng9w== ) d.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20210130225514 20210116212514 48887 nic.cz. MS+y9iW7+IyH1ShCiXPiuTHzLXvOOWz5cvwOD5Y5mHycWYQdxsdOOevJYDPsQojU8Nq3bBx98B3N jyvXWSvWwQ== ) d.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20210130225514 20210116212514 48887 nic.cz. 21v0APyDFXTLJFeLMoHToFavyncuLWxLMN1suw1bak6kIzuE5nB680tK/+0la6cZw+BM2WQKivhK pcwsCVKnaQ== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	cz is authoritative for nic.cz
	Query to b.ns.nic.cz for nic.cz/DNSKEY
	Received 297 bytes from 194.0.13.1
	;; Answer received from 194.0.13.1 (297 bytes) ;; HEADER SECTION ;; id = 11886 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 3 nscount = 0 arcount = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; nic.cz. IN DNSKEY ;; ANSWER SECTION (3 records) nic.cz. 1800 IN DNSKEY ( 256 3 13 U/UtyUHhKvGpjQWMq1FnECXRucUCVghLzpf46/zwgt8fSGDq4zdTjdiq38rC75YhDZ5NICoWxddj hlOERGjKsw== ) ; Key ID = 48887 nic.cz. 1800 IN DNSKEY ( 257 3 13 dVzroCuRiRiENFheBCKsAewPyAoEDwYkzBBcX/7fHASoTbk34RWmjbiLVtwSaSae3RGGgpMI/8+Y tieBk+M9jw== ) ; Key ID = 25021 nic.cz. 1800 IN RRSIG ( DNSKEY 13 2 1800 20210131015514 20210117002514 25021 nic.cz. BdSzC3a0FdGJPsTJEzwH5i3PJ0VnzTRL2buWeQQgCmRCNljiXFL8Qqjg/0/3vWMV2w6ApRX1p+Lt t/YdP6f3Dg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	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
	;; Answer received from 194.0.13.1 (932 bytes) ;; HEADER SECTION ;; id = 12527 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 4 nscount = 0 arcount = 13 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; nic.cz. IN NS ;; ANSWER SECTION (4 records) nic.cz. 1800 IN NS d.ns.nic.cz. nic.cz. 1800 IN NS a.ns.nic.cz. nic.cz. 1800 IN NS b.ns.nic.cz. nic.cz. 1800 IN RRSIG ( NS 13 2 1800 20210130225514 20210116212514 48887 nic.cz. RvsegrxdUQTXm1Jxj5cu+tgkMPowcx+HaEmamrhGqSP65gbzueVEwm4leR3j7MXfMYyB2ILI63tx WesDF3O86Q== ) ;; 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 20210130225514 20210116212514 48887 nic.cz. iqYMzWnem9Nq7QvCc0s7sM9oZ81SU+aBKNTFVf53rr43xU8B+Nu85uzGDqEzmh/MZUrq7EM7XbXw +cBG3PGlfA== ) a.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20210130225514 20210116212514 48887 nic.cz. LDNhqbKDh2LV8rzOq0fpsBoh/la0ZJeqgyD+uxq+Qx2E2bJCIYgYnusv3OFXor8IIdTu12kFNcw1 m0izv6WaIw== ) b.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20210130225514 20210116212514 48887 nic.cz. I78VAgUmuKA8LmTy9fSR3J7U9i8bmQTH+yT3E8ukHp6uyKnu+Y/lbKV7Qm5nDnD5vNrRTzeuqq72 H6caFWCLGg== ) b.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20210130225514 20210116212514 48887 nic.cz. ctbWPpHFywrNgdzz5xIplt9gvpX3x9xEogaqmNiu0ELWEEfY4OV1AsVGCAHxDLhOJYbeplU5bfGM zrm3mGng9w== ) d.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20210130225514 20210116212514 48887 nic.cz. MS+y9iW7+IyH1ShCiXPiuTHzLXvOOWz5cvwOD5Y5mHycWYQdxsdOOevJYDPsQojU8Nq3bBx98B3N jyvXWSvWwQ== ) d.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20210130225514 20210116212514 48887 nic.cz. 21v0APyDFXTLJFeLMoHToFavyncuLWxLMN1suw1bak6kIzuE5nB680tK/+0la6cZw+BM2WQKivhK pcwsCVKnaQ== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Found nic.cz nameservers: d.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz

nic.cz

	Checking DS between cz and nic.cz
	Query to b.ns.nic.cz for nic.cz/DS
	Received 181 bytes from 194.0.13.1
	;; Answer received from 194.0.13.1 (181 bytes) ;; HEADER SECTION ;; id = 50277 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 2 nscount = 0 arcount = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; nic.cz. IN DS ;; ANSWER SECTION (2 records) nic.cz. 3600 IN DS ( 25021 13 2 18aa0da81d3a793fa1f70205425df724deb590991eab049552b7c0fc9a578f62 ) nic.cz. 3600 IN RRSIG ( DS 13 2 3600 20210128060612 20210116000420 12877 cz. LW6jDbr9yjP5G0EosVHGldo0w+XNKEZsiNr5hAfppqAXlpnaTGvPwbbGGoDsXNp/PHsnqxW101t2 UFe1U7ZHTA== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Found 1 DS records for nic.cz in the cz zone
	DS=25021/SHA-256 has algorithm ECDSAP256SHA256
	Found 1 RRSIGs over DS RRset
	`nic.cz. 3600 IN RRSIG ( DS 13 2 3600 20210128060612 20210116000420 12877 cz. LW6jDbr9yjP5G0EosVHGldo0w+XNKEZsiNr5hAfppqAXlpnaTGvPwbbGGoDsXNp/PHsnqxW101t2 UFe1U7ZHTA== )`
	RRSIG=12877 and DNSKEY=12877 verifies the DS RRset
	DS=25021/SHA-256 is now in the chain-of-trust
	`nic.cz. 3600 IN DS ( 25021 13 2 18aa0da81d3a793fa1f70205425df724deb590991eab049552b7c0fc9a578f62 )`
	Query to a.ns.nic.cz for nic.cz/DNSKEY
	Received 297 bytes from 194.0.12.1
	;; Answer received from 194.0.12.1 (297 bytes) ;; HEADER SECTION ;; id = 30744 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 3 nscount = 0 arcount = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; nic.cz. IN DNSKEY ;; ANSWER SECTION (3 records) nic.cz. 1800 IN DNSKEY ( 256 3 13 U/UtyUHhKvGpjQWMq1FnECXRucUCVghLzpf46/zwgt8fSGDq4zdTjdiq38rC75YhDZ5NICoWxddj hlOERGjKsw== ) ; Key ID = 48887 nic.cz. 1800 IN DNSKEY ( 257 3 13 dVzroCuRiRiENFheBCKsAewPyAoEDwYkzBBcX/7fHASoTbk34RWmjbiLVtwSaSae3RGGgpMI/8+Y tieBk+M9jw== ) ; Key ID = 25021 nic.cz. 1800 IN RRSIG ( DNSKEY 13 2 1800 20210131015514 20210117002514 25021 nic.cz. BdSzC3a0FdGJPsTJEzwH5i3PJ0VnzTRL2buWeQQgCmRCNljiXFL8Qqjg/0/3vWMV2w6ApRX1p+Lt t/YdP6f3Dg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Found 2 DNSKEY records for nic.cz
	`nic.cz. 1800 IN DNSKEY ( 256 3 13 U/UtyUHhKvGpjQWMq1FnECXRucUCVghLzpf46/zwgt8fSGDq4zdTjdiq38rC75YhDZ5NICoWxddj hlOERGjKsw== ) ; Key ID = 48887`
	`nic.cz. 1800 IN DNSKEY ( 257 3 13 dVzroCuRiRiENFheBCKsAewPyAoEDwYkzBBcX/7fHASoTbk34RWmjbiLVtwSaSae3RGGgpMI/8+Y tieBk+M9jw== ) ; Key ID = 25021`
	DNSKEY=25021/SEP is now in the chain-of-trust
	DS=25021/SHA-256 verifies DNSKEY=25021/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`nic.cz. 1800 IN RRSIG ( DNSKEY 13 2 1800 20210131015514 20210117002514 25021 nic.cz. BdSzC3a0FdGJPsTJEzwH5i3PJ0VnzTRL2buWeQQgCmRCNljiXFL8Qqjg/0/3vWMV2w6ApRX1p+Lt t/YdP6f3Dg== )`
	RRSIG=25021 and DNSKEY=25021/SEP verifies the DNSKEY RRset
	DNSKEY=48887 is now in the chain-of-trust
	Query to b.ns.nic.cz for nic.cz/A
	Received 1050 bytes from 194.0.13.1
	;; Answer received from 194.0.13.1 (1050 bytes) ;; HEADER SECTION ;; id = 47283 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 2 nscount = 4 arcount = 13 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; 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 20210130225514 20210116212514 48887 nic.cz. dUmDFqvwSoo2P25NieeQGR154aNxOrofS7q8jHJdHUvgZhdfTpQ36QLopoEsH7kKKYRP16bccvP7 eIpSq1x7Wg== ) ;; 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 20210130225514 20210116212514 48887 nic.cz. RvsegrxdUQTXm1Jxj5cu+tgkMPowcx+HaEmamrhGqSP65gbzueVEwm4leR3j7MXfMYyB2ILI63tx WesDF3O86Q== ) ;; 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 20210130225514 20210116212514 48887 nic.cz. iqYMzWnem9Nq7QvCc0s7sM9oZ81SU+aBKNTFVf53rr43xU8B+Nu85uzGDqEzmh/MZUrq7EM7XbXw +cBG3PGlfA== ) a.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20210130225514 20210116212514 48887 nic.cz. LDNhqbKDh2LV8rzOq0fpsBoh/la0ZJeqgyD+uxq+Qx2E2bJCIYgYnusv3OFXor8IIdTu12kFNcw1 m0izv6WaIw== ) b.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20210130225514 20210116212514 48887 nic.cz. I78VAgUmuKA8LmTy9fSR3J7U9i8bmQTH+yT3E8ukHp6uyKnu+Y/lbKV7Qm5nDnD5vNrRTzeuqq72 H6caFWCLGg== ) b.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20210130225514 20210116212514 48887 nic.cz. ctbWPpHFywrNgdzz5xIplt9gvpX3x9xEogaqmNiu0ELWEEfY4OV1AsVGCAHxDLhOJYbeplU5bfGM zrm3mGng9w== ) d.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20210130225514 20210116212514 48887 nic.cz. MS+y9iW7+IyH1ShCiXPiuTHzLXvOOWz5cvwOD5Y5mHycWYQdxsdOOevJYDPsQojU8Nq3bBx98B3N jyvXWSvWwQ== ) d.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20210130225514 20210116212514 48887 nic.cz. 21v0APyDFXTLJFeLMoHToFavyncuLWxLMN1suw1bak6kIzuE5nB680tK/+0la6cZw+BM2WQKivhK pcwsCVKnaQ== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	nic.cz is authoritative for nic.cz
	Found RRSIG signed by nic.cz zone
	Query to b.ns.nic.cz for nic.cz/SOA
	Received 1081 bytes from 194.0.13.1
	;; Answer received from 194.0.13.1 (1081 bytes) ;; HEADER SECTION ;; id = 28472 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 2 nscount = 4 arcount = 13 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; nic.cz. IN SOA ;; ANSWER SECTION (2 records) nic.cz. 1800 IN SOA ( a.ns.nic.cz. hostmaster.nic.cz. 1610848514 ;serial 10800 ;refresh 3600 ;retry 1209600 ;expire 7200 ;minimum ) nic.cz. 1800 IN RRSIG ( SOA 13 2 1800 20210131015514 20210117002514 48887 nic.cz. TJtjQP5UZwkwqR7SDwCz7Ig3KFy/JU8zEBHIDNfTmQS7LtVQYEQjTizQMi85pP4HuK6k2UvGGcPa MA9tFG5IKg== ) ;; AUTHORITY SECTION (4 records) nic.cz. 1800 IN NS b.ns.nic.cz. nic.cz. 1800 IN NS d.ns.nic.cz. nic.cz. 1800 IN NS a.ns.nic.cz. nic.cz. 1800 IN RRSIG ( NS 13 2 1800 20210130225514 20210116212514 48887 nic.cz. RvsegrxdUQTXm1Jxj5cu+tgkMPowcx+HaEmamrhGqSP65gbzueVEwm4leR3j7MXfMYyB2ILI63tx WesDF3O86Q== ) ;; 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 20210130225514 20210116212514 48887 nic.cz. iqYMzWnem9Nq7QvCc0s7sM9oZ81SU+aBKNTFVf53rr43xU8B+Nu85uzGDqEzmh/MZUrq7EM7XbXw +cBG3PGlfA== ) a.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20210130225514 20210116212514 48887 nic.cz. LDNhqbKDh2LV8rzOq0fpsBoh/la0ZJeqgyD+uxq+Qx2E2bJCIYgYnusv3OFXor8IIdTu12kFNcw1 m0izv6WaIw== ) b.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20210130225514 20210116212514 48887 nic.cz. I78VAgUmuKA8LmTy9fSR3J7U9i8bmQTH+yT3E8ukHp6uyKnu+Y/lbKV7Qm5nDnD5vNrRTzeuqq72 H6caFWCLGg== ) b.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20210130225514 20210116212514 48887 nic.cz. ctbWPpHFywrNgdzz5xIplt9gvpX3x9xEogaqmNiu0ELWEEfY4OV1AsVGCAHxDLhOJYbeplU5bfGM zrm3mGng9w== ) d.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20210130225514 20210116212514 48887 nic.cz. MS+y9iW7+IyH1ShCiXPiuTHzLXvOOWz5cvwOD5Y5mHycWYQdxsdOOevJYDPsQojU8Nq3bBx98B3N jyvXWSvWwQ== ) d.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20210130225514 20210116212514 48887 nic.cz. 21v0APyDFXTLJFeLMoHToFavyncuLWxLMN1suw1bak6kIzuE5nB680tK/+0la6cZw+BM2WQKivhK pcwsCVKnaQ== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Query to d.ns.nic.cz for nic.cz/SOA
	Received 189 bytes from 193.29.206.1
	;; Answer received from 193.29.206.1 (189 bytes) ;; HEADER SECTION ;; id = 34662 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 2 nscount = 0 arcount = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; nic.cz. IN SOA ;; ANSWER SECTION (2 records) nic.cz. 1800 IN SOA ( a.ns.nic.cz. hostmaster.nic.cz. 1610848514 ;serial 10800 ;refresh 3600 ;retry 1209600 ;expire 7200 ;minimum ) nic.cz. 1800 IN RRSIG ( SOA 13 2 1800 20210131015514 20210117002514 48887 nic.cz. TJtjQP5UZwkwqR7SDwCz7Ig3KFy/JU8zEBHIDNfTmQS7LtVQYEQjTizQMi85pP4HuK6k2UvGGcPa MA9tFG5IKg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Query to a.ns.nic.cz for nic.cz/SOA
	Received 189 bytes from 194.0.12.1
	;; Answer received from 194.0.12.1 (189 bytes) ;; HEADER SECTION ;; id = 27716 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 2 nscount = 0 arcount = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; nic.cz. IN SOA ;; ANSWER SECTION (2 records) nic.cz. 1800 IN SOA ( a.ns.nic.cz. hostmaster.nic.cz. 1610848514 ;serial 10800 ;refresh 3600 ;retry 1209600 ;expire 7200 ;minimum ) nic.cz. 1800 IN RRSIG ( SOA 13 2 1800 20210131015514 20210117002514 48887 nic.cz. TJtjQP5UZwkwqR7SDwCz7Ig3KFy/JU8zEBHIDNfTmQS7LtVQYEQjTizQMi85pP4HuK6k2UvGGcPa MA9tFG5IKg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Query to b.ns.nic.cz for nic.cz/A
	Received 1050 bytes from 194.0.13.1
	;; Answer received from 194.0.13.1 (1050 bytes) ;; HEADER SECTION ;; id = 58419 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 2 nscount = 4 arcount = 13 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; 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 20210130225514 20210116212514 48887 nic.cz. dUmDFqvwSoo2P25NieeQGR154aNxOrofS7q8jHJdHUvgZhdfTpQ36QLopoEsH7kKKYRP16bccvP7 eIpSq1x7Wg== ) ;; 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 20210130225514 20210116212514 48887 nic.cz. RvsegrxdUQTXm1Jxj5cu+tgkMPowcx+HaEmamrhGqSP65gbzueVEwm4leR3j7MXfMYyB2ILI63tx WesDF3O86Q== ) ;; 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 20210130225514 20210116212514 48887 nic.cz. iqYMzWnem9Nq7QvCc0s7sM9oZ81SU+aBKNTFVf53rr43xU8B+Nu85uzGDqEzmh/MZUrq7EM7XbXw +cBG3PGlfA== ) a.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20210130225514 20210116212514 48887 nic.cz. LDNhqbKDh2LV8rzOq0fpsBoh/la0ZJeqgyD+uxq+Qx2E2bJCIYgYnusv3OFXor8IIdTu12kFNcw1 m0izv6WaIw== ) b.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20210130225514 20210116212514 48887 nic.cz. I78VAgUmuKA8LmTy9fSR3J7U9i8bmQTH+yT3E8ukHp6uyKnu+Y/lbKV7Qm5nDnD5vNrRTzeuqq72 H6caFWCLGg== ) b.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20210130225514 20210116212514 48887 nic.cz. ctbWPpHFywrNgdzz5xIplt9gvpX3x9xEogaqmNiu0ELWEEfY4OV1AsVGCAHxDLhOJYbeplU5bfGM zrm3mGng9w== ) d.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20210130225514 20210116212514 48887 nic.cz. MS+y9iW7+IyH1ShCiXPiuTHzLXvOOWz5cvwOD5Y5mHycWYQdxsdOOevJYDPsQojU8Nq3bBx98B3N jyvXWSvWwQ== ) d.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20210130225514 20210116212514 48887 nic.cz. 21v0APyDFXTLJFeLMoHToFavyncuLWxLMN1suw1bak6kIzuE5nB680tK/+0la6cZw+BM2WQKivhK pcwsCVKnaQ== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	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 20210130225514 20210116212514 48887 nic.cz. dUmDFqvwSoo2P25NieeQGR154aNxOrofS7q8jHJdHUvgZhdfTpQ36QLopoEsH7kKKYRP16bccvP7 eIpSq1x7Wg== )`
	RRSIG=48887 and DNSKEY=48887 verifies the A RRset

Move your mouse over any or symbols for remediation hints.

Want a second opinion? Test nic.cz at dnsviz.net.

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