DNSSEC Debugger

Domain Name:

Time: 2026-01-05 03:09:05 UTC

Analyzing DNSSEC problems for NBC.GOV

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 f.root-servers.net for ./DNSKEY
	Received 1414 bytes from 192.5.5.241
	;; Response received from [192.5.5.241] 1414 octets ;; HEADER SECTION ;; id = 42696 ;; 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 = 5 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 65535, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; . IN DNSKEY ;; ANSWER SECTION (5 records) . 172800 IN DNSKEY ( 256 3 8 AwEAAbNTVC2+pry4pc37pZI9Oj6b8FHxT3VGrvSPKLE1Tjyfe2kUZUtVX5xrv6AV4BVO+ygrYjGZ MNgEnbLU4zknnlnhI2e0g6iTza1aZh0dRZXGH16C1NUNq1CxBkUhIYQhQDeIOtLacx+RmFTc+hSH JJ2MJ79IS00kA7eKi6mofQ7SPJmdJVjI+JAx791y0f5QaB+iHGANU53FwiYXNUQjfAzCrtOaSevG sx8SO8BTaXLAjFq5eewOtwScVwfVDhEXlvpE6e+mIncwhNKaMRD9IPuHENqCNPI5MjxfAMVS6cEY 8eEozIkv/vHc+0Auu3n+Fcx6F2Js4KPXaHEShAXugfU= ) ; keytag 21831 . 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 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 RRSIG ( DNSKEY 8 0 172800 20260122000000 20260101000000 20326 . USkvPpFyQAxqOkImrqqrMdiekwo0VJR5VGDlDxCNsI1dJ79PzX9wXPKprjsMZf77Xbo2SmRTCz+r bNtUtTmiKtDNsRROj9+45I4ExW1w3JKx3SrfHdORnrM0FK14YI+BbOJGkVsSMfJkscC2IWDb0APd vZgkUvYmi1ERmu4UG6CAujAmHe7GbLtEQlzMEdlCrYAgRtJo5RstNivFZ5A9WiBQMlfOAoEf0zr7 FDbHocQa2i983Jc3TzNJcRZwmQRpV1beonuMzQ3BumxE8n0sLX3pd6YFfZeO5J+kY8NVKFrSyEpf i83Yucy2Jd5LJwDo4t2kHHmG03LbkZbeGPkawg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 4 DNSKEY records for .
	`. 172800 IN DNSKEY ( 256 3 8 AwEAAbNTVC2+pry4pc37pZI9Oj6b8FHxT3VGrvSPKLE1Tjyfe2kUZUtVX5xrv6AV4BVO+ygrYjGZ MNgEnbLU4zknnlnhI2e0g6iTza1aZh0dRZXGH16C1NUNq1CxBkUhIYQhQDeIOtLacx+RmFTc+hSH JJ2MJ79IS00kA7eKi6mofQ7SPJmdJVjI+JAx791y0f5QaB+iHGANU53FwiYXNUQjfAzCrtOaSevG sx8SO8BTaXLAjFq5eewOtwScVwfVDhEXlvpE6e+mIncwhNKaMRD9IPuHENqCNPI5MjxfAMVS6cEY 8eEozIkv/vHc+0Auu3n+Fcx6F2Js4KPXaHEShAXugfU= ) ; keytag 21831`
	`. 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 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`
	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 20260122000000 20260101000000 20326 . USkvPpFyQAxqOkImrqqrMdiekwo0VJR5VGDlDxCNsI1dJ79PzX9wXPKprjsMZf77Xbo2SmRTCz+r bNtUtTmiKtDNsRROj9+45I4ExW1w3JKx3SrfHdORnrM0FK14YI+BbOJGkVsSMfJkscC2IWDb0APd vZgkUvYmi1ERmu4UG6CAujAmHe7GbLtEQlzMEdlCrYAgRtJo5RstNivFZ5A9WiBQMlfOAoEf0zr7 FDbHocQa2i983Jc3TzNJcRZwmQRpV1beonuMzQ3BumxE8n0sLX3pd6YFfZeO5J+kY8NVKFrSyEpf i83Yucy2Jd5LJwDo4t2kHHmG03LbkZbeGPkawg== )`
	RRSIG=20326 and DNSKEY=20326/SEP verifies the DNSKEY RRset
	DNSKEY=21831 is now in the chain-of-trust
	DNSKEY=61809 is now in the chain-of-trust
	DNSKEY=38696/SEP is now in the chain-of-trust
	Query to e.root-servers.net for NBC.GOV/A
	Received 614 bytes from 192.203.230.10
	;; Response received from [192.203.230.10] 614 octets ;; HEADER SECTION ;; id = 44934 ;; 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) ;; NBC.GOV. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (6 records) GOV. 172800 IN NS a.ns.GOV. GOV. 172800 IN NS b.ns.GOV. GOV. 172800 IN NS c.ns.GOV. GOV. 172800 IN NS d.ns.GOV. GOV. 86400 IN DS ( 2536 13 2 0baf26b7bbf313a859046fd3b1ee49ddfba33934cfb3e717c21e2a2935c2f259 ) GOV. 86400 IN RRSIG ( DS 8 1 86400 20260117170000 20260104160000 21831 . ToD6hQyvPXMulvqOsfhUxaJ1VfRYlmhmyBJzFUk/ByMbQUQEOJnH0kI+4BonVzp/R15QUxfAYw4h aHE6Ul9NPI95AP6+JXfSnYW+qL/HDVHaYeUAgQ4nqgZ7N/6P+1TBqI1bWyP95+NZdbLBj3uXEquk H9Gy5FNIniTc9/PJY7/cxJeZUTe1tP0/+snjD1AaADeA9ecXRq25XW4ymeYpRi/qQV47kcfQFL/S 9cv34fopn+iw10P6/MXQMAsE8KIVWFrV5C0tLuHo9ROE658lnKSlfbYD2nyZMg7qes9liTZ087ow x8nOyE6dEGvK2v2Orz8Ofz4/q42Om/B7rt8upg== ) ;; ADDITIONAL SECTION (9 records) a.ns.GOV. 172800 IN A 199.33.230.1 a.ns.GOV. 172800 IN AAAA 2001:503:ff40::1 b.ns.GOV. 172800 IN A 199.33.231.1 b.ns.GOV. 172800 IN AAAA 2001:503:ff41::1 c.ns.GOV. 172800 IN A 199.33.232.1 c.ns.GOV. 172800 IN AAAA 2001:503:ff42::1 d.ns.GOV. 172800 IN A 199.33.233.1 d.ns.GOV. 172800 IN AAAA 2001:503:ff43::1 ;; { "EDNS-VERSION": 0 }
	Query to b.root-servers.net for GOV/DNSKEY
	Received 610 bytes from 170.247.170.2
	;; Response received from [170.247.170.2] 610 octets ;; HEADER SECTION ;; id = 47323 ;; 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) ;; GOV. IN DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (6 records) GOV. 172800 IN NS a.ns.GOV. GOV. 172800 IN NS b.ns.GOV. GOV. 172800 IN NS c.ns.GOV. GOV. 172800 IN NS d.ns.GOV. GOV. 86400 IN DS ( 2536 13 2 0baf26b7bbf313a859046fd3b1ee49ddfba33934cfb3e717c21e2a2935c2f259 ) GOV. 86400 IN RRSIG ( DS 8 1 86400 20260117170000 20260104160000 21831 . ToD6hQyvPXMulvqOsfhUxaJ1VfRYlmhmyBJzFUk/ByMbQUQEOJnH0kI+4BonVzp/R15QUxfAYw4h aHE6Ul9NPI95AP6+JXfSnYW+qL/HDVHaYeUAgQ4nqgZ7N/6P+1TBqI1bWyP95+NZdbLBj3uXEquk H9Gy5FNIniTc9/PJY7/cxJeZUTe1tP0/+snjD1AaADeA9ecXRq25XW4ymeYpRi/qQV47kcfQFL/S 9cv34fopn+iw10P6/MXQMAsE8KIVWFrV5C0tLuHo9ROE658lnKSlfbYD2nyZMg7qes9liTZ087ow x8nOyE6dEGvK2v2Orz8Ofz4/q42Om/B7rt8upg== ) ;; ADDITIONAL SECTION (9 records) a.ns.GOV. 172800 IN A 199.33.230.1 a.ns.GOV. 172800 IN AAAA 2001:503:ff40::1 b.ns.GOV. 172800 IN A 199.33.231.1 b.ns.GOV. 172800 IN AAAA 2001:503:ff41::1 c.ns.GOV. 172800 IN A 199.33.232.1 c.ns.GOV. 172800 IN AAAA 2001:503:ff42::1 d.ns.GOV. 172800 IN A 199.33.233.1 d.ns.GOV. 172800 IN AAAA 2001:503:ff43::1 ;; { "EDNS-VERSION": 0 }
	Found child zone GOV

GOV

	Checking DS between . and GOV
	Query to l.root-servers.net for GOV/DS
	Received 367 bytes from 199.7.83.42
	;; Response received from [199.7.83.42] 367 octets ;; HEADER SECTION ;; id = 28291 ;; 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) ;; GOV. IN DS ;; ANSWER SECTION (2 records) GOV. 86400 IN DS ( 2536 13 2 0baf26b7bbf313a859046fd3b1ee49ddfba33934cfb3e717c21e2a2935c2f259 ) GOV. 86400 IN RRSIG ( DS 8 1 86400 20260117170000 20260104160000 21831 . ToD6hQyvPXMulvqOsfhUxaJ1VfRYlmhmyBJzFUk/ByMbQUQEOJnH0kI+4BonVzp/R15QUxfAYw4h aHE6Ul9NPI95AP6+JXfSnYW+qL/HDVHaYeUAgQ4nqgZ7N/6P+1TBqI1bWyP95+NZdbLBj3uXEquk H9Gy5FNIniTc9/PJY7/cxJeZUTe1tP0/+snjD1AaADeA9ecXRq25XW4ymeYpRi/qQV47kcfQFL/S 9cv34fopn+iw10P6/MXQMAsE8KIVWFrV5C0tLuHo9ROE658lnKSlfbYD2nyZMg7qes9liTZ087ow x8nOyE6dEGvK2v2Orz8Ofz4/q42Om/B7rt8upg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 1 DS records for GOV in the . zone
	DS=2536/SHA-256 has algorithm ECDSAP256SHA256
	Found 1 RRSIGs over DS RRset
	`GOV. 86400 IN RRSIG ( DS 8 1 86400 20260117170000 20260104160000 21831 . ToD6hQyvPXMulvqOsfhUxaJ1VfRYlmhmyBJzFUk/ByMbQUQEOJnH0kI+4BonVzp/R15QUxfAYw4h aHE6Ul9NPI95AP6+JXfSnYW+qL/HDVHaYeUAgQ4nqgZ7N/6P+1TBqI1bWyP95+NZdbLBj3uXEquk H9Gy5FNIniTc9/PJY7/cxJeZUTe1tP0/+snjD1AaADeA9ecXRq25XW4ymeYpRi/qQV47kcfQFL/S 9cv34fopn+iw10P6/MXQMAsE8KIVWFrV5C0tLuHo9ROE658lnKSlfbYD2nyZMg7qes9liTZ087ow x8nOyE6dEGvK2v2Orz8Ofz4/q42Om/B7rt8upg== )`
	RRSIG=21831 and DNSKEY=21831 verifies the DS RRset
	DS=2536/SHA-256 is now in the chain-of-trust
	`GOV. 86400 IN DS ( 2536 13 2 0baf26b7bbf313a859046fd3b1ee49ddfba33934cfb3e717c21e2a2935c2f259 )`
	Query to c.ns.GOV for GOV/DNSKEY
	Received 291 bytes from 199.33.232.1
	;; Response received from [199.33.232.1] 291 octets ;; HEADER SECTION ;; id = 8662 ;; 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) ;; GOV. IN DNSKEY ;; ANSWER SECTION (3 records) GOV. 3600 IN DNSKEY ( 257 3 13 D6ZhJTObQw3+kcewWf5iTHbzD3uTdbs5xf0kQfP/VXZcDovWJd0DUgHlp2VC002aLDCwhLoPPVN2 VfyoPnjCqg== ) ; keytag 2536 GOV. 3600 IN DNSKEY ( 256 3 13 Of5kU9k4XfdcPwCK9k/zRJNu+Xspnw/BDd+1V6ZpDXRIpHe35BnHTZUBJN9gd6++HkiGXx2YnTji iO7/q+Yamg== ) ; keytag 35496 GOV. 3600 IN RRSIG ( DNSKEY 13 1 3600 20260301110621 20251230110621 2536 gov. iCtKgojxRJ3aC+zRkeRtYN8ULchb9nyn0dGHPebhgcZI66aNxjbxFRdkFaPdfb7Jm2tyceq+I9oR dhCENtiufw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 2 DNSKEY records for GOV
	`GOV. 3600 IN DNSKEY ( 257 3 13 D6ZhJTObQw3+kcewWf5iTHbzD3uTdbs5xf0kQfP/VXZcDovWJd0DUgHlp2VC002aLDCwhLoPPVN2 VfyoPnjCqg== ) ; keytag 2536`
	`GOV. 3600 IN DNSKEY ( 256 3 13 Of5kU9k4XfdcPwCK9k/zRJNu+Xspnw/BDd+1V6ZpDXRIpHe35BnHTZUBJN9gd6++HkiGXx2YnTji iO7/q+Yamg== ) ; keytag 35496`
	DNSKEY=2536/SEP is now in the chain-of-trust
	DS=2536/SHA-256 verifies DNSKEY=2536/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`GOV. 3600 IN RRSIG ( DNSKEY 13 1 3600 20260301110621 20251230110621 2536 gov. iCtKgojxRJ3aC+zRkeRtYN8ULchb9nyn0dGHPebhgcZI66aNxjbxFRdkFaPdfb7Jm2tyceq+I9oR dhCENtiufw== )`
	RRSIG=2536 and DNSKEY=2536/SEP verifies the DNSKEY RRset
	DNSKEY=35496 is now in the chain-of-trust
	Query to a.ns.GOV for NBC.GOV/A
	Received 237 bytes from 199.33.230.1
	;; Response received from [199.33.230.1] 237 octets ;; HEADER SECTION ;; id = 22717 ;; 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 = 4 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; NBC.GOV. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (4 records) NBC.GOV. 10800 IN NS liz.ns.cloudflare.com. NBC.GOV. 10800 IN NS west.ns.cloudflare.com. NBC.GOV. 3600 IN DS ( 2371 13 2 ea434d9af7144056bdb2460d5d66d74393071aff53cd130b3373f965a84f65bf ) NBC.GOV. 3600 IN RRSIG ( DS 13 2 3600 20260106040905 20260104020905 35496 gov. 1sz01gQMqKvhb26yBh4zwQ5nizoABxhELhNZcqUOZi5kEaga2qjkLKkQfzAkyZpJcqph5SWWiRCe KpHfl6NnFg== ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Query to d.ns.GOV for NBC.GOV/DNSKEY
	Received 237 bytes from 199.33.233.1
	;; Response received from [199.33.233.1] 237 octets ;; HEADER SECTION ;; id = 25878 ;; 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 = 4 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; NBC.GOV. IN DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (4 records) NBC.GOV. 10800 IN NS liz.ns.cloudflare.com. NBC.GOV. 10800 IN NS west.ns.cloudflare.com. NBC.GOV. 3600 IN DS ( 2371 13 2 ea434d9af7144056bdb2460d5d66d74393071aff53cd130b3373f965a84f65bf ) NBC.GOV. 3600 IN RRSIG ( DS 13 2 3600 20260106040905 20260104020905 35496 gov. v5JulkBEErM6cZMKB3t0FaXfF0vkAcKviig5m/q9x1p91JUkSx1wVRJLzFQ4NqITghfhL58Ay21t sm1yjrCvkA== ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found child zone NBC.GOV

NBC.GOV

	Checking DS between GOV and NBC.GOV
	Query to b.ns.GOV for NBC.GOV/DS
	Received 183 bytes from 199.33.231.1
	;; Response received from [199.33.231.1] 183 octets ;; HEADER SECTION ;; id = 24485 ;; 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) ;; NBC.GOV. IN DS ;; ANSWER SECTION (2 records) NBC.GOV. 3600 IN DS ( 2371 13 2 ea434d9af7144056bdb2460d5d66d74393071aff53cd130b3373f965a84f65bf ) NBC.GOV. 3600 IN RRSIG ( DS 13 2 3600 20260106040905 20260104020905 35496 gov. DsfkY4DTomNP4efRSXYWmwoXLw2cPalnWgD2SOMBIBK6Qbt+85s4cutiXfANTpSc5XhGTwFqP1cN QFVN0LlBjg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 1 DS records for NBC.GOV in the GOV zone
	DS=2371/SHA-256 has algorithm ECDSAP256SHA256
	Found 1 RRSIGs over DS RRset
	`NBC.GOV. 3600 IN RRSIG ( DS 13 2 3600 20260106040905 20260104020905 35496 gov. DsfkY4DTomNP4efRSXYWmwoXLw2cPalnWgD2SOMBIBK6Qbt+85s4cutiXfANTpSc5XhGTwFqP1cN QFVN0LlBjg== )`
	RRSIG=35496 and DNSKEY=35496 verifies the DS RRset
	DS=2371/SHA-256 is now in the chain-of-trust
	`NBC.GOV. 3600 IN DS ( 2371 13 2 ea434d9af7144056bdb2460d5d66d74393071aff53cd130b3373f965a84f65bf )`
	Query to west.ns.cloudflare.com for NBC.GOV/DNSKEY
	Received 299 bytes from 173.245.59.247
	;; Response received from [173.245.59.247] 299 octets ;; HEADER SECTION ;; id = 16067 ;; 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) ;; NBC.GOV. IN DNSKEY ;; ANSWER SECTION (3 records) NBC.GOV. 3600 IN DNSKEY ( 257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+KkxLbxILfDLUT0rAK9iU zy1L53eKGQ== ) ; keytag 2371 NBC.GOV. 3600 IN DNSKEY ( 256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8KqXXFJkqmVfRvMGPmM1x 8fGAa2XhSA== ) ; keytag 34505 NBC.GOV. 3600 IN RRSIG ( DNSKEY 13 2 3600 20260227194354 20251228194354 2371 nbc.gov. p3CXeW4iU/KKhAs6nzl3qc9D0X090PFmAb6OFIiuf7luHTi8Grq4OMHZj2HtblOYXJxr4HBvvLc3 JPhd9sypLA== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 2 DNSKEY records for NBC.GOV
	`NBC.GOV. 3600 IN DNSKEY ( 257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+KkxLbxILfDLUT0rAK9iU zy1L53eKGQ== ) ; keytag 2371`
	`NBC.GOV. 3600 IN DNSKEY ( 256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8KqXXFJkqmVfRvMGPmM1x 8fGAa2XhSA== ) ; keytag 34505`
	DNSKEY=2371/SEP is now in the chain-of-trust
	DS=2371/SHA-256 verifies DNSKEY=2371/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`NBC.GOV. 3600 IN RRSIG ( DNSKEY 13 2 3600 20260227194354 20251228194354 2371 nbc.gov. p3CXeW4iU/KKhAs6nzl3qc9D0X090PFmAb6OFIiuf7luHTi8Grq4OMHZj2HtblOYXJxr4HBvvLc3 JPhd9sypLA== )`
	RRSIG=2371 and DNSKEY=2371/SEP verifies the DNSKEY RRset
	DNSKEY=34505 is now in the chain-of-trust
	Query to west.ns.cloudflare.com for NBC.GOV/A
	Received 340 bytes from 108.162.193.247
	;; Response received from [108.162.193.247] 340 octets ;; HEADER SECTION ;; id = 8337 ;; 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 = 0 ;; nscount = 4 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; NBC.GOV. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (4 records) NBC.GOV. 1800 IN SOA ( liz.ns.cloudflare.com. dns.cloudflare.com. 2392523139 ;serial 10000 ;refresh 2400 ;retry 604800 ;expire 1800 ;minimum ) NBC.GOV. 1800 IN NSEC ( \000.nbc.gov. NS SOA HINFO MX TXT AAAA LOC SRV NAPTR CERT SSHFP RRSIG NSEC DNSKEY TLSA SMIMEA HIP CDS CDNSKEY OPENPGPKEY SVCB HTTPS URI CAA ) NBC.GOV. 1800 IN RRSIG ( NSEC 13 2 1800 20260106040905 20260104020905 34505 nbc.gov. DKssFo8kNjKnMA9ifGy4Pfv9zt3phZ6g7s/UIVhcnMVdQ5zIqLzKN61itCJHET5a2GOa+xVI+DzH LkSpJG/xMw== ) NBC.GOV. 1800 IN RRSIG ( SOA 13 2 1800 20260106040905 20260104020905 34505 nbc.gov. H9mddiK4gXebz8XB3QCMJlY7OqjRy0AjmOQHVzX5seXfBkKG91jckEmn/xnvXJ1iYWG4uB/uyBdu zf453L2S1A== ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	west.ns.cloudflare.com is authoritative for NBC.GOV
	Found RRSIG signed by nbc.gov zone
	Query to liz.ns.cloudflare.com for NBC.GOV/SOA
	Received 200 bytes from 173.245.58.189
	;; Response received from [173.245.58.189] 200 octets ;; HEADER SECTION ;; id = 61623 ;; 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) ;; NBC.GOV. IN SOA ;; ANSWER SECTION (2 records) NBC.GOV. 1800 IN SOA ( liz.ns.cloudflare.com. dns.cloudflare.com. 2392523139 ;serial 10000 ;refresh 2400 ;retry 604800 ;expire 1800 ;minimum ) NBC.GOV. 1800 IN RRSIG ( SOA 13 2 1800 20260106040905 20260104020905 34505 nbc.gov. ArJeKvR3AtZdrINCdNbXbDIwHa65Px3CqxmtYR/A4Le428Mv8GJ5xdvHg0KWdE60j13m9MZuLqHL QIeDDlj0yA== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Query to west.ns.cloudflare.com for NBC.GOV/A
	Received 340 bytes from 108.162.193.247
	;; Response received from [108.162.193.247] 340 octets ;; HEADER SECTION ;; id = 24173 ;; 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 = 0 ;; nscount = 4 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; NBC.GOV. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (4 records) NBC.GOV. 1800 IN SOA ( liz.ns.cloudflare.com. dns.cloudflare.com. 2392523139 ;serial 10000 ;refresh 2400 ;retry 604800 ;expire 1800 ;minimum ) NBC.GOV. 1800 IN NSEC ( \000.nbc.gov. NS SOA HINFO MX TXT AAAA LOC SRV NAPTR CERT SSHFP RRSIG NSEC DNSKEY TLSA SMIMEA HIP CDS CDNSKEY OPENPGPKEY SVCB HTTPS URI CAA ) NBC.GOV. 1800 IN RRSIG ( SOA 13 2 1800 20260106040905 20260104020905 34505 nbc.gov. M6ZsKko7MP01vjEhMKI5T6Ga/fPg0EzH6JEIRBlUZXKX3Dm61BeX+cw4EvJxqvrCIDy60Ex45b5x J7ZE+duJnw== ) NBC.GOV. 1800 IN RRSIG ( NSEC 13 2 1800 20260106040905 20260104020905 34505 nbc.gov. RuZ6+4bVHwRqC6lApOj2Ns9biCeKBjvJnd0XM0mAWiEsA4b6EbdvxqE+nnsMs0PKmVrsrfoGyFNU YUEebsD2Qg== ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Checking NSEC records for a NODATA response
	Found 1 RRSIGs over NSEC RRset
	`NBC.GOV. 1800 IN RRSIG ( NSEC 13 2 1800 20260106040905 20260104020905 34505 nbc.gov. RuZ6+4bVHwRqC6lApOj2Ns9biCeKBjvJnd0XM0mAWiEsA4b6EbdvxqE+nnsMs0PKmVrsrfoGyFNU YUEebsD2Qg== )`
	RRSIG=34505 and DNSKEY=34505 verifies the NSEC RRset
	NSEC proves no records of type A exist for NBC.GOV
	Found 1 RRSIGs over SOA RRset
	`NBC.GOV. 1800 IN RRSIG ( SOA 13 2 1800 20260106040905 20260104020905 34505 nbc.gov. H9mddiK4gXebz8XB3QCMJlY7OqjRy0AjmOQHVzX5seXfBkKG91jckEmn/xnvXJ1iYWG4uB/uyBdu zf453L2S1A== )`
	RRSIG=34505 and DNSKEY=34505 verifies the SOA RRset

NBC.GOV

	Query to liz.ns.cloudflare.com for NBC.GOV/A
	Received 340 bytes from 172.64.32.189
	;; Response received from [172.64.32.189] 340 octets ;; HEADER SECTION ;; id = 22491 ;; 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 = 0 ;; nscount = 4 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; NBC.GOV. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (4 records) NBC.GOV. 1800 IN SOA ( liz.ns.cloudflare.com. dns.cloudflare.com. 2392523139 ;serial 10000 ;refresh 2400 ;retry 604800 ;expire 1800 ;minimum ) NBC.GOV. 1800 IN NSEC ( \000.nbc.gov. NS SOA HINFO MX TXT AAAA LOC SRV NAPTR CERT SSHFP RRSIG NSEC DNSKEY TLSA SMIMEA HIP CDS CDNSKEY OPENPGPKEY SVCB HTTPS URI CAA ) NBC.GOV. 1800 IN RRSIG ( SOA 13 2 1800 20260106040905 20260104020905 34505 nbc.gov. faKJcunHUyhT9apkRdGk0XeqdIbMaNxgBcGvuW/+MiscC9ODDi9qWTFm6mqcZn4MrB06LgMdslPO W6qmEdpApQ== ) NBC.GOV. 1800 IN RRSIG ( NSEC 13 2 1800 20260106040905 20260104020905 34505 nbc.gov. b+XAo40B4VbnHhvFwrY++sASy9CJ6flZqe9JZZl2IsR/gPXOyXMOrDxlaS5cCOCAa6o9S06RtA6x udEpTL1KMw== ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	liz.ns.cloudflare.com is authoritative for NBC.GOV
	Found RRSIG signed by nbc.gov zone
	Query to liz.ns.cloudflare.com for NBC.GOV/A
	Received 340 bytes from 173.245.58.189
	;; Response received from [173.245.58.189] 340 octets ;; HEADER SECTION ;; id = 50816 ;; 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 = 0 ;; nscount = 4 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; NBC.GOV. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (4 records) NBC.GOV. 1800 IN SOA ( liz.ns.cloudflare.com. dns.cloudflare.com. 2392523139 ;serial 10000 ;refresh 2400 ;retry 604800 ;expire 1800 ;minimum ) NBC.GOV. 1800 IN NSEC ( \000.nbc.gov. NS SOA HINFO MX TXT AAAA LOC SRV NAPTR CERT SSHFP RRSIG NSEC DNSKEY TLSA SMIMEA HIP CDS CDNSKEY OPENPGPKEY SVCB HTTPS URI CAA ) NBC.GOV. 1800 IN RRSIG ( SOA 13 2 1800 20260106040905 20260104020905 34505 nbc.gov. vLtIHitIJSD3IxApx7WHJp0gzstF8SYIDEWWD6RNXVFlwD0z6GrjQJLEw5751l0TPKbGHFkEcf+f 9ZB8DyAAMA== ) NBC.GOV. 1800 IN RRSIG ( NSEC 13 2 1800 20260106040905 20260104020905 34505 nbc.gov. 7QCOeNFegLrXUExFYD/RA7v8RyAAvvkA9XokE2SQgIb58Kptrq9OeHyW/HXSG3dgEhdIylYDCxi5 weldAlyWmw== ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Checking NSEC records for a NODATA response
	Found 1 RRSIGs over NSEC RRset
	`NBC.GOV. 1800 IN RRSIG ( NSEC 13 2 1800 20260106040905 20260104020905 34505 nbc.gov. 7QCOeNFegLrXUExFYD/RA7v8RyAAvvkA9XokE2SQgIb58Kptrq9OeHyW/HXSG3dgEhdIylYDCxi5 weldAlyWmw== )`
	RRSIG=34505 and DNSKEY=34505 verifies the NSEC RRset
	NSEC proves no records of type A exist for NBC.GOV
	Found 1 RRSIGs over SOA RRset
	`NBC.GOV. 1800 IN RRSIG ( SOA 13 2 1800 20260106040905 20260104020905 34505 nbc.gov. faKJcunHUyhT9apkRdGk0XeqdIbMaNxgBcGvuW/+MiscC9ODDi9qWTFm6mqcZn4MrB06LgMdslPO W6qmEdpApQ== )`
	RRSIG=34505 and DNSKEY=34505 verifies the SOA RRset

Move your mouse over any or symbols for remediation hints.

Want a second opinion? Test NBC.GOV at dnsviz.net.

DNSSEC Debugger

↓ Advanced options ↑ Advanced options

Trust Anchor:
Name Servers: