DNSSEC Analyzer

Domain Name:

Time: 2019-11-18 00:34:29 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 l.root-servers.net for ./DNSKEY
	Error querying l.root-servers.net/2001:500:9f:0:0:0:0:42 for ./DNSKEY: 'IPv6 transport disabled'
	Received 864 bytes from 199.7.83.42
	;; Answer received from 199.7.83.42 (864 bytes) ;; HEADER SECTION ;; id = 56501 ;; 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 AwEAAbPwrxwtOMENWvblQbUFwBllR7ZtXsu9rg/LdyklKs9gU2GQTeOc59XjhuAPZ4WrT09z6YPL +vzIIJqnG3Hiru7hFUQ4pH0qsLNxrsuZrZYmXAKoVa9SXL1Ap0LygwrIugEk1G4v7Rk/Alt1jLUI E+ZymGtSEhIuGQdXrEmj3ffzXY13H42X4Ja3vJTn/WIQOXY7vwHXGDypSh9j0Tt0hknF1yVJCrIp fkhFWihMKNdMzMprD4bV+PDLRA5YSn3OPIeUnRn9qBUCN11LXQKb+W3Jg+m/5xQRQJzJ/qXgDh1+ aN+Mc9AstP29Y/ZLFmF6cKtL2zoUMN5I5QymeSkJJzc= ) ; Key ID = 22545 . 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 20191201000000 20191110000000 20326 . Ls9QKBBhEie6yu8Y8nxmSg/K7CvsJ7mQr1mgOiOkzokm97IpD+Wnls/84l77jFKDJBHEA2mzEMUi eKMb4B95aGqrJua2J4HB/51jwaae7GrVpKtS5w5ni5k1bpB6qPmvmlDlq4vJ3YOVawMsy4vF9Dxa lQ0satgSoFdze4QNUy9J+2Lcjtf6+OamOS7R2bKOQGD4z7+ftKLJqYXlKw3UgGMmnaCMVbcC6IpU UHl52CEPlWTga/fI33QVJjD3j2zkZCip+lIPY3lNb+CXHKr8UvgnrQckZ/MYnvUNlt/JxjFME1hy bwACbrJ/Ea6IwGbDNW4wsmq8HLSn5n9mA6n6iw== ) ;; 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 AwEAAbPwrxwtOMENWvblQbUFwBllR7ZtXsu9rg/LdyklKs9gU2GQTeOc59XjhuAPZ4WrT09z6YPL +vzIIJqnG3Hiru7hFUQ4pH0qsLNxrsuZrZYmXAKoVa9SXL1Ap0LygwrIugEk1G4v7Rk/Alt1jLUI E+ZymGtSEhIuGQdXrEmj3ffzXY13H42X4Ja3vJTn/WIQOXY7vwHXGDypSh9j0Tt0hknF1yVJCrIp fkhFWihMKNdMzMprD4bV+PDLRA5YSn3OPIeUnRn9qBUCN11LXQKb+W3Jg+m/5xQRQJzJ/qXgDh1+ aN+Mc9AstP29Y/ZLFmF6cKtL2zoUMN5I5QymeSkJJzc= ) ; Key ID = 22545`
	`. 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 20191201000000 20191110000000 20326 . Ls9QKBBhEie6yu8Y8nxmSg/K7CvsJ7mQr1mgOiOkzokm97IpD+Wnls/84l77jFKDJBHEA2mzEMUi eKMb4B95aGqrJua2J4HB/51jwaae7GrVpKtS5w5ni5k1bpB6qPmvmlDlq4vJ3YOVawMsy4vF9Dxa lQ0satgSoFdze4QNUy9J+2Lcjtf6+OamOS7R2bKOQGD4z7+ftKLJqYXlKw3UgGMmnaCMVbcC6IpU UHl52CEPlWTga/fI33QVJjD3j2zkZCip+lIPY3lNb+CXHKr8UvgnrQckZ/MYnvUNlt/JxjFME1hy bwACbrJ/Ea6IwGbDNW4wsmq8HLSn5n9mA6n6iw== )`
	RRSIG=20326 and DNSKEY=20326/SEP verifies the DNSKEY RRset
	DNSKEY=22545 is now in the chain-of-trust
	Query to d.root-servers.net for nic.cz/A
	Received 613 bytes from 199.7.91.13
	;; Answer received from 199.7.91.13 (613 bytes) ;; HEADER SECTION ;; id = 39016 ;; 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: 1450 ;; 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 20191130170000 20191117160000 22545 . Nid77kXxlf0D6u7bwSdkSMynJwWU7WBVGrFmKVYYVnOuH/OhQNTOlP6yjaE0WSenWFm4BsB/v3/P tTPfohTWfeugo6LQcBhdBTkJGOQkBVh64hVgRw/1LQNc40kLDrFb0pGgQmRlNdhakr0oD0XJaEAv wTfAkrLZS4ueDObPd7aE++y3mKS8s6bf7ovn9nzflWKsMUXjQKM5Wi7J31Zhn8pc7M82X3QXc0NY G6tP9OKPKD6rKlCnQvp8r5CX53RltNuSuYxQlplQi4q+OA8nwY8It3OD8RTHKapDlF06r3EIg06h RrEDQm3x1TROY5WDPXOz0MIm1HNEzHJJ2BjM3A== ) ;; 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: 1450 ;; option:
	Query to k.root-servers.net for cz/DNSKEY
	Error querying k.root-servers.net/2001:7fd:0:0:0:0:0:1 for cz/DNSKEY: 'IPv6 transport disabled'
	Received 613 bytes from 193.0.14.129
	;; Answer received from 193.0.14.129 (613 bytes) ;; HEADER SECTION ;; id = 65346 ;; 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 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 20191130170000 20191117160000 22545 . Nid77kXxlf0D6u7bwSdkSMynJwWU7WBVGrFmKVYYVnOuH/OhQNTOlP6yjaE0WSenWFm4BsB/v3/P tTPfohTWfeugo6LQcBhdBTkJGOQkBVh64hVgRw/1LQNc40kLDrFb0pGgQmRlNdhakr0oD0XJaEAv wTfAkrLZS4ueDObPd7aE++y3mKS8s6bf7ovn9nzflWKsMUXjQKM5Wi7J31Zhn8pc7M82X3QXc0NY G6tP9OKPKD6rKlCnQvp8r5CX53RltNuSuYxQlplQi4q+OA8nwY8It3OD8RTHKapDlF06r3EIg06h RrEDQm3x1TROY5WDPXOz0MIm1HNEzHJJ2BjM3A== ) ;; 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 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	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
	;; Answer received from 199.7.83.42 (366 bytes) ;; HEADER SECTION ;; id = 36709 ;; 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: 4096 ;; 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 20191130170000 20191117160000 22545 . Nid77kXxlf0D6u7bwSdkSMynJwWU7WBVGrFmKVYYVnOuH/OhQNTOlP6yjaE0WSenWFm4BsB/v3/P tTPfohTWfeugo6LQcBhdBTkJGOQkBVh64hVgRw/1LQNc40kLDrFb0pGgQmRlNdhakr0oD0XJaEAv wTfAkrLZS4ueDObPd7aE++y3mKS8s6bf7ovn9nzflWKsMUXjQKM5Wi7J31Zhn8pc7M82X3QXc0NY G6tP9OKPKD6rKlCnQvp8r5CX53RltNuSuYxQlplQi4q+OA8nwY8It3OD8RTHKapDlF06r3EIg06h RrEDQm3x1TROY5WDPXOz0MIm1HNEzHJJ2BjM3A== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; 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 20191130170000 20191117160000 22545 . Nid77kXxlf0D6u7bwSdkSMynJwWU7WBVGrFmKVYYVnOuH/OhQNTOlP6yjaE0WSenWFm4BsB/v3/P tTPfohTWfeugo6LQcBhdBTkJGOQkBVh64hVgRw/1LQNc40kLDrFb0pGgQmRlNdhakr0oD0XJaEAv wTfAkrLZS4ueDObPd7aE++y3mKS8s6bf7ovn9nzflWKsMUXjQKM5Wi7J31Zhn8pc7M82X3QXc0NY G6tP9OKPKD6rKlCnQvp8r5CX53RltNuSuYxQlplQi4q+OA8nwY8It3OD8RTHKapDlF06r3EIg06h RrEDQm3x1TROY5WDPXOz0MIm1HNEzHJJ2BjM3A== )`
	RRSIG=22545 and DNSKEY=22545 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 d.ns.nic.cz for cz/DNSKEY
	Error querying d.ns.nic.cz/2001:678:1:0:0:0:0:1 for cz/DNSKEY: 'IPv6 transport disabled'
	Received 387 bytes from 193.29.206.1
	;; Answer received from 193.29.206.1 (387 bytes) ;; HEADER SECTION ;; id = 55552 ;; 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 = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; cz. IN DNSKEY ;; ANSWER SECTION (4 records) cz. 18000 IN DNSKEY ( 256 3 13 g6SpimC8CS1qXMCRcWGQRiICnkkTXPyGPfyU6+3tQxkLBNY0/lWrSfNkEa/CJM7SAyOR0eEVJZx7 dsxaA5xPOw== ) ; Key ID = 62220 cz. 18000 IN DNSKEY ( 257 3 13 nqzH7xP1QU5UOVy/VvxFSlrB/XgX9JDJzj51PzIj35TXjZTyalTlAT/f7PAfaSD5mEG1N8Vk9NmI 2nxgQqhzDQ== ) ; Key ID = 20237 cz. 18000 IN RRSIG ( DNSKEY 13 1 18000 20191122000000 20191108000000 20237 cz. 1wsJHW5cP/6xnL5vHAwlyfU5E2FXoqV1k+kswBnzjkQF9hpJ00elfrorlk277N8AmXPHonBD+snV 7X0wZHtO6Q== ) cz. 18000 IN RRSIG ( DNSKEY 13 1 18000 20191130190911 20191117230537 62220 cz. QW9W4qeurX8iSHvLmc08MEdWXaSnvL8Bajm6mUPO1B9TNuQakWkVrO02uvWjuT+JwntH3RfL2RGW L/FqJq6G0g== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Found 2 DNSKEY records for cz
	`cz. 18000 IN DNSKEY ( 256 3 13 g6SpimC8CS1qXMCRcWGQRiICnkkTXPyGPfyU6+3tQxkLBNY0/lWrSfNkEa/CJM7SAyOR0eEVJZx7 dsxaA5xPOw== ) ; Key ID = 62220`
	`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 20191122000000 20191108000000 20237 cz. 1wsJHW5cP/6xnL5vHAwlyfU5E2FXoqV1k+kswBnzjkQF9hpJ00elfrorlk277N8AmXPHonBD+snV 7X0wZHtO6Q== )`
	`cz. 18000 IN RRSIG ( DNSKEY 13 1 18000 20191130190911 20191117230537 62220 cz. QW9W4qeurX8iSHvLmc08MEdWXaSnvL8Bajm6mUPO1B9TNuQakWkVrO02uvWjuT+JwntH3RfL2RGW L/FqJq6G0g== )`
	RRSIG=20237 and DNSKEY=20237/SEP verifies the DNSKEY RRset
	RRSIG=62220 and DNSKEY=62220 verifies the DNSKEY RRset
	DNSKEY=62220 is now in the chain-of-trust
	Query to c.ns.nic.cz for nic.cz/A
	Received 1050 bytes from 194.0.14.1
	;; Answer received from 194.0.14.1 (1050 bytes) ;; HEADER SECTION ;; id = 6755 ;; 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 20191129053825 20191115065815 9334 nic.cz. W5ilPXCkiyd8FQ0N1GqWhX5V8MQNzqKIRXoqmhc/wWZx4mQn3xxbcUIB1uEiXfG9hkKZ+B0tVJ6c aGDQZaaTrw== ) ;; 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 20191129042802 20191115065815 9334 nic.cz. dcOBpMHOc8nYWFzo9VB2wm9BbAKTAmrAYaueLD9T516OB/UsbZlm05WhngNuLWK8kXtKN/Fy0o5y CMV2CLGe0A== ) ;; 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 20191128124304 20191115065815 9334 nic.cz. B8Iq4m7TzFMKt7I/KYw4KjqKSoCbYTzy9N8PEnDYWD5DJYRtejyk1PdA7maEECiK1Holwek28re6 hOrmRqV3gg== ) a.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20191128143055 20191115065815 9334 nic.cz. WIJyXaGaI5pcuj8vMNVgi00fHIH/lH2nNgw42U7/gqXZd+qv+QPLipg/4dHcilhmuaY6zWyi5GQm kvKsn12e+A== ) b.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20191129041748 20191115065815 9334 nic.cz. ZB6WRA8zGVaLIiYFh7YY2S+oWpi4f8i7FVFapL2MnOZ+LSei7AUfV0wce4M0e9AVtuIU5KdbglL8 apu8bRCg1g== ) b.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20191128142121 20191115065815 9334 nic.cz. WCDzcnK3bqkA8NlvWNe6cqy2tTvX9HwZaxg8pLP/ruV2Ls7CLLfzdt+9EPnQyEnSdWizFeZBwpHH sviXZB2QEw== ) d.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20191129053941 20191115065815 9334 nic.cz. QXgTLU2LB1vYxNvNcDovwgpFX4UxK97+AqygrmkJ7D3Ek6OGreHVidqd4Rwd3/cCPwbqAzT6vIcP wo7TAFeTkw== ) d.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20191129001144 20191115065815 9334 nic.cz. P6A8uQbpkDqLJ0Sx7nCmDC7yZMOhvij95aepWZcnZOPrWzbDKT19yDNWmoBNgB0SCufvjnaghi4k fKPsRhhT7g== ) ;; 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 399 bytes from 194.0.13.1
	;; Answer received from 194.0.13.1 (399 bytes) ;; HEADER SECTION ;; id = 50930 ;; 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 = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; nic.cz. IN DNSKEY ;; ANSWER SECTION (4 records) nic.cz. 1800 IN DNSKEY ( 256 3 13 kg9LOAsy4nwTJoXRv/71gRmtB4Sb6qCDzikX8/pPO4n0IpmnTiz9WPVX8jKB1HhzgYymDtG7Z6yg ICrHQhBkRg== ) ; Key ID = 9334 nic.cz. 1800 IN DNSKEY ( 257 3 13 LM4zvjUgZi2XZKsYooDE0HFYGfWp242fKB+O8sLsuox8S6MJTowY8lBDjZD7JKbmaNot3+1H8zU9 TrDzWmmHwQ== ) ; Key ID = 61281 nic.cz. 1800 IN RRSIG ( DNSKEY 13 2 1800 20191128125810 20191115065815 61281 nic.cz. RXVFWh6udihxsWnDzQT8qs91o3GQzHF1xcuYKk8wm7ruP3bQW6emqUxqQAnMizSLSHHn2Kyb5ZIT ThKLAOCVWw== ) nic.cz. 1800 IN RRSIG ( DNSKEY 13 2 1800 20191129014847 20191115065815 9334 nic.cz. uSe30rAySNjcTIHvMdW/bDrIUrN32LPFJrG8fBP6bKFD1esUwKevMTMQjeVer8V4THb16dGKRB+w 1HI3NxdRZA== ) ;; 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 d.ns.nic.cz for nic.cz/NS
	Received 932 bytes from 193.29.206.1
	;; Answer received from 193.29.206.1 (932 bytes) ;; HEADER SECTION ;; id = 36473 ;; 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 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 20191129042802 20191115065815 9334 nic.cz. dcOBpMHOc8nYWFzo9VB2wm9BbAKTAmrAYaueLD9T516OB/UsbZlm05WhngNuLWK8kXtKN/Fy0o5y CMV2CLGe0A== ) ;; 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 20191128124304 20191115065815 9334 nic.cz. B8Iq4m7TzFMKt7I/KYw4KjqKSoCbYTzy9N8PEnDYWD5DJYRtejyk1PdA7maEECiK1Holwek28re6 hOrmRqV3gg== ) a.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20191128143055 20191115065815 9334 nic.cz. WIJyXaGaI5pcuj8vMNVgi00fHIH/lH2nNgw42U7/gqXZd+qv+QPLipg/4dHcilhmuaY6zWyi5GQm kvKsn12e+A== ) b.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20191129041748 20191115065815 9334 nic.cz. ZB6WRA8zGVaLIiYFh7YY2S+oWpi4f8i7FVFapL2MnOZ+LSei7AUfV0wce4M0e9AVtuIU5KdbglL8 apu8bRCg1g== ) b.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20191128142121 20191115065815 9334 nic.cz. WCDzcnK3bqkA8NlvWNe6cqy2tTvX9HwZaxg8pLP/ruV2Ls7CLLfzdt+9EPnQyEnSdWizFeZBwpHH sviXZB2QEw== ) d.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20191129053941 20191115065815 9334 nic.cz. QXgTLU2LB1vYxNvNcDovwgpFX4UxK97+AqygrmkJ7D3Ek6OGreHVidqd4Rwd3/cCPwbqAzT6vIcP wo7TAFeTkw== ) d.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20191129001144 20191115065815 9334 nic.cz. P6A8uQbpkDqLJ0Sx7nCmDC7yZMOhvij95aepWZcnZOPrWzbDKT19yDNWmoBNgB0SCufvjnaghi4k fKPsRhhT7g== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	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 b.ns.nic.cz for nic.cz/DS
	Error querying b.ns.nic.cz/2001:678:10:0:0:0:0:1 for nic.cz/DS: 'IPv6 transport disabled'
	Received 181 bytes from 194.0.13.1
	;; Answer received from 194.0.13.1 (181 bytes) ;; HEADER SECTION ;; id = 45085 ;; 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 ( 61281 13 2 4104d40c8fe2030bf7a09a199fcf37b36f7ec8ddd16f5a84f2e61c248d3afd0f ) nic.cz. 3600 IN RRSIG ( DS 13 2 3600 20191125104119 20191112060540 62220 cz. RdEWtwxveaMGYN7l7WF13Bjqz1nPbjkds/MwOWMcWXVC1mtGy+1w7ISGtVyE08dlT7V7WXWsBUA9 zTnyWBCbaQ== ) ;; 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=61281/SHA-256 has algorithm ECDSAP256SHA256
	Found 1 RRSIGs over DS RRset
	`nic.cz. 3600 IN RRSIG ( DS 13 2 3600 20191125104119 20191112060540 62220 cz. RdEWtwxveaMGYN7l7WF13Bjqz1nPbjkds/MwOWMcWXVC1mtGy+1w7ISGtVyE08dlT7V7WXWsBUA9 zTnyWBCbaQ== )`
	RRSIG=62220 and DNSKEY=62220 verifies the DS RRset
	DS=61281/SHA-256 is now in the chain-of-trust
	`nic.cz. 3600 IN DS ( 61281 13 2 4104d40c8fe2030bf7a09a199fcf37b36f7ec8ddd16f5a84f2e61c248d3afd0f )`
	Query to b.ns.nic.cz for nic.cz/DNSKEY
	Error querying b.ns.nic.cz/2001:678:10:0:0:0:0:1 for nic.cz/DNSKEY: 'IPv6 transport disabled'
	Received 399 bytes from 194.0.13.1
	;; Answer received from 194.0.13.1 (399 bytes) ;; HEADER SECTION ;; id = 47311 ;; 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 = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; nic.cz. IN DNSKEY ;; ANSWER SECTION (4 records) nic.cz. 1800 IN DNSKEY ( 256 3 13 kg9LOAsy4nwTJoXRv/71gRmtB4Sb6qCDzikX8/pPO4n0IpmnTiz9WPVX8jKB1HhzgYymDtG7Z6yg ICrHQhBkRg== ) ; Key ID = 9334 nic.cz. 1800 IN DNSKEY ( 257 3 13 LM4zvjUgZi2XZKsYooDE0HFYGfWp242fKB+O8sLsuox8S6MJTowY8lBDjZD7JKbmaNot3+1H8zU9 TrDzWmmHwQ== ) ; Key ID = 61281 nic.cz. 1800 IN RRSIG ( DNSKEY 13 2 1800 20191128125810 20191115065815 61281 nic.cz. RXVFWh6udihxsWnDzQT8qs91o3GQzHF1xcuYKk8wm7ruP3bQW6emqUxqQAnMizSLSHHn2Kyb5ZIT ThKLAOCVWw== ) nic.cz. 1800 IN RRSIG ( DNSKEY 13 2 1800 20191129014847 20191115065815 9334 nic.cz. uSe30rAySNjcTIHvMdW/bDrIUrN32LPFJrG8fBP6bKFD1esUwKevMTMQjeVer8V4THb16dGKRB+w 1HI3NxdRZA== ) ;; 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 kg9LOAsy4nwTJoXRv/71gRmtB4Sb6qCDzikX8/pPO4n0IpmnTiz9WPVX8jKB1HhzgYymDtG7Z6yg ICrHQhBkRg== ) ; Key ID = 9334`
	`nic.cz. 1800 IN DNSKEY ( 257 3 13 LM4zvjUgZi2XZKsYooDE0HFYGfWp242fKB+O8sLsuox8S6MJTowY8lBDjZD7JKbmaNot3+1H8zU9 TrDzWmmHwQ== ) ; Key ID = 61281`
	DNSKEY=61281/SEP is now in the chain-of-trust
	DS=61281/SHA-256 verifies DNSKEY=61281/SEP
	Found 2 RRSIGs over DNSKEY RRset
	`nic.cz. 1800 IN RRSIG ( DNSKEY 13 2 1800 20191128125810 20191115065815 61281 nic.cz. RXVFWh6udihxsWnDzQT8qs91o3GQzHF1xcuYKk8wm7ruP3bQW6emqUxqQAnMizSLSHHn2Kyb5ZIT ThKLAOCVWw== )`
	`nic.cz. 1800 IN RRSIG ( DNSKEY 13 2 1800 20191129014847 20191115065815 9334 nic.cz. uSe30rAySNjcTIHvMdW/bDrIUrN32LPFJrG8fBP6bKFD1esUwKevMTMQjeVer8V4THb16dGKRB+w 1HI3NxdRZA== )`
	RRSIG=61281 and DNSKEY=61281/SEP verifies the DNSKEY RRset
	RRSIG=9334 and DNSKEY=9334 verifies the DNSKEY RRset
	DNSKEY=9334 is now in the chain-of-trust
	Query to d.ns.nic.cz for nic.cz/A
	Received 153 bytes from 193.29.206.1
	;; Answer received from 193.29.206.1 (153 bytes) ;; HEADER SECTION ;; id = 58725 ;; 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 A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20191129053825 20191115065815 9334 nic.cz. W5ilPXCkiyd8FQ0N1GqWhX5V8MQNzqKIRXoqmhc/wWZx4mQn3xxbcUIB1uEiXfG9hkKZ+B0tVJ6c aGDQZaaTrw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; 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 189 bytes from 194.0.13.1
	;; Answer received from 194.0.13.1 (189 bytes) ;; HEADER SECTION ;; id = 3480 ;; 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. 1573804695 ;serial 10800 ;refresh 3600 ;retry 1209600 ;expire 7200 ;minimum ) nic.cz. 1800 IN RRSIG ( SOA 13 2 1800 20191129060921 20191115065815 9334 nic.cz. jXy+E0Ar0QNAKj0TDkj105Jy4jR/tP52mqgKvsJcBi3tslraFe/atC9Ih8sWnG/dJYzHgu4GXv1m MLWcc5NP6Q== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Query to d.ns.nic.cz for nic.cz/SOA
	Error querying d.ns.nic.cz/2001:678:1:0:0:0:0:1 for nic.cz/SOA: 'IPv6 transport disabled'
	Received 189 bytes from 193.29.206.1
	;; Answer received from 193.29.206.1 (189 bytes) ;; HEADER SECTION ;; id = 25570 ;; 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. 1573804695 ;serial 10800 ;refresh 3600 ;retry 1209600 ;expire 7200 ;minimum ) nic.cz. 1800 IN RRSIG ( SOA 13 2 1800 20191129060921 20191115065815 9334 nic.cz. jXy+E0Ar0QNAKj0TDkj105Jy4jR/tP52mqgKvsJcBi3tslraFe/atC9Ih8sWnG/dJYzHgu4GXv1m MLWcc5NP6Q== ) ;; 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
	Error querying a.ns.nic.cz/2001:678:f:0:0:0:0:1 for nic.cz/SOA: 'IPv6 transport disabled'
	Received 189 bytes from 194.0.12.1
	;; Answer received from 194.0.12.1 (189 bytes) ;; HEADER SECTION ;; id = 55988 ;; 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. 1573804695 ;serial 10800 ;refresh 3600 ;retry 1209600 ;expire 7200 ;minimum ) nic.cz. 1800 IN RRSIG ( SOA 13 2 1800 20191129060921 20191115065815 9334 nic.cz. jXy+E0Ar0QNAKj0TDkj105Jy4jR/tP52mqgKvsJcBi3tslraFe/atC9Ih8sWnG/dJYzHgu4GXv1m MLWcc5NP6Q== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Query to d.ns.nic.cz for nic.cz/A
	Received 153 bytes from 193.29.206.1
	;; Answer received from 193.29.206.1 (153 bytes) ;; HEADER SECTION ;; id = 47251 ;; 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 A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20191129053825 20191115065815 9334 nic.cz. W5ilPXCkiyd8FQ0N1GqWhX5V8MQNzqKIRXoqmhc/wWZx4mQn3xxbcUIB1uEiXfG9hkKZ+B0tVJ6c aGDQZaaTrw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; 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 20191129053825 20191115065815 9334 nic.cz. W5ilPXCkiyd8FQ0N1GqWhX5V8MQNzqKIRXoqmhc/wWZx4mQn3xxbcUIB1uEiXfG9hkKZ+B0tVJ6c aGDQZaaTrw== )`
	RRSIG=9334 and DNSKEY=9334 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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