DNSSEC Debugger

Domain Name:

Time: 2026-04-07 09:41:43 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 a.root-servers.net for ./DNSKEY
	Received 1414 bytes from 198.41.0.4
	;; Response received from [198.41.0.4] 1414 octets ;; HEADER SECTION ;; id = 34249 ;; 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": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; . IN DNSKEY ;; ANSWER SECTION (5 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 ( 256 3 8 AwEAAb5dDYffpgAJ8VUGLwQtWXPlQWsjIFJtCM00/XaKU+8ln+ofah3q2KxEIjvzQg+nqdxRj+8e mtPne1mtYcbFWP4Q9E+DniOJLK09R05FuzvGbrG7DDdRDUX/cedFdV7O8pFEAYpJqYNR9BCTIAV9 73DO2biauKSA31b7I2lK/woxoR1tf5cqJ4SMbJUviuHicAEoUi2ATswloZNWd5T5thmEFZnxFx7D 5UgKCY7oflS7+GU7dNJwEtmFnWYVETHN0kHXVz6aguouaAZp706YXNIoR/iTgQhmsR7XX+wL0Z8Q M2LxQIyU6vRZ06IyuJMGRMiwkSuGElbumyBt12JZbrU= ) ; keytag 54393 . 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 ( 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 20260422000000 20260401000000 20326 . Nt4x7yqmsincs4ioIgZsndCkDnX0VGYvrwktw71R5xqyzdE8no8GBFuMSWBfOe7t64hIVApinTCZ ozwhiHQ9vjxEzz1vOf/3AjXXYclWI2UtaLlkJnb+Kv5ZFQH5j98nmRo1d0DKHg5rVUUQKY0VsfxP mnJ0y+ZWA7RWzQSR0zKvZbrX2wjtaUe5ZqpWk/+Yk3e4MiC1P9wMs5w6X+MkidQDlMQsrYQW57Xt 8iqTK2Wm66WIXzDkP7OSl8jTLINhz+o/3OOMLgkG8zTwh4BTWI36ySyZIUtqXdrsIZrX60U1nutq AMONInBHXGLfw3VODBlMvIeD0WLk3e52pYP/Tg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 4 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 ( 256 3 8 AwEAAb5dDYffpgAJ8VUGLwQtWXPlQWsjIFJtCM00/XaKU+8ln+ofah3q2KxEIjvzQg+nqdxRj+8e mtPne1mtYcbFWP4Q9E+DniOJLK09R05FuzvGbrG7DDdRDUX/cedFdV7O8pFEAYpJqYNR9BCTIAV9 73DO2biauKSA31b7I2lK/woxoR1tf5cqJ4SMbJUviuHicAEoUi2ATswloZNWd5T5thmEFZnxFx7D 5UgKCY7oflS7+GU7dNJwEtmFnWYVETHN0kHXVz6aguouaAZp706YXNIoR/iTgQhmsR7XX+wL0Z8Q M2LxQIyU6vRZ06IyuJMGRMiwkSuGElbumyBt12JZbrU= ) ; keytag 54393`
	`. 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 ( 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 20260422000000 20260401000000 20326 . Nt4x7yqmsincs4ioIgZsndCkDnX0VGYvrwktw71R5xqyzdE8no8GBFuMSWBfOe7t64hIVApinTCZ ozwhiHQ9vjxEzz1vOf/3AjXXYclWI2UtaLlkJnb+Kv5ZFQH5j98nmRo1d0DKHg5rVUUQKY0VsfxP mnJ0y+ZWA7RWzQSR0zKvZbrX2wjtaUe5ZqpWk/+Yk3e4MiC1P9wMs5w6X+MkidQDlMQsrYQW57Xt 8iqTK2Wm66WIXzDkP7OSl8jTLINhz+o/3OOMLgkG8zTwh4BTWI36ySyZIUtqXdrsIZrX60U1nutq AMONInBHXGLfw3VODBlMvIeD0WLk3e52pYP/Tg== )`
	RRSIG=20326 and DNSKEY=20326/SEP verifies the DNSKEY RRset
	DNSKEY=54393 is now in the chain-of-trust
	DNSKEY=21831 is now in the chain-of-trust
	DNSKEY=38696/SEP is now in the chain-of-trust
	Query to i.root-servers.net for NBC.GOV/A
	Received 617 bytes from 192.36.148.17
	;; Response received from [192.36.148.17] 617 octets ;; HEADER SECTION ;; id = 6701 ;; 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) ;; NBC.GOV. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (6 records) gov. 172800 IN NS c.ns.gov. gov. 172800 IN NS a.ns.gov. gov. 172800 IN NS b.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 20260420050000 20260407040000 54393 . F97YLSFpv2sLp0FOw10c408U2gnTOh9jrcZPM+Q83QGjGlMaKLJifTlgwgeXiQJzrLz2ZUnuUV3z U0t1mafpjHmbDED9lsLeBmq4dOJufGLJAF9NgIxpl9oyxfZJfIXF+y2jGRNVn5ks6peYPmbMw+Y4 zNoJ5mnyhR2DlnxGIk+4QkqRNZbFp47M1VPbwkUFHe4hUvP+MpSkIEE2VGK0tbDZIaZ4trr+tZrl GAlBuRk8jSJkQBP/Ouq+kYgb8gY89VCy4A7V96PyqG1WoM6RwUyNQiB/dK2fsL41Os8yWkwcd6p+ oscC+Y970qMOkL2TSkcsbCRYk1lpxZK95C6GHw== ) ;; ADDITIONAL SECTION (9 records) a.ns.gov. 172800 IN A 199.33.230.1 b.ns.gov. 172800 IN A 199.33.231.1 c.ns.gov. 172800 IN A 199.33.232.1 d.ns.gov. 172800 IN A 199.33.233.1 a.ns.gov. 172800 IN AAAA 2001:503:ff40::1 b.ns.gov. 172800 IN AAAA 2001:503:ff41::1 c.ns.gov. 172800 IN AAAA 2001:503:ff42::1 d.ns.gov. 172800 IN AAAA 2001:503:ff43::1 ;; { "EDNS-VERSION": 0 }
	Query to j.root-servers.net for GOV/DNSKEY
	Received 610 bytes from 192.58.128.30
	;; Response received from [192.58.128.30] 610 octets ;; HEADER SECTION ;; id = 1140 ;; 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) ;; 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 20260420050000 20260407040000 54393 . F97YLSFpv2sLp0FOw10c408U2gnTOh9jrcZPM+Q83QGjGlMaKLJifTlgwgeXiQJzrLz2ZUnuUV3z U0t1mafpjHmbDED9lsLeBmq4dOJufGLJAF9NgIxpl9oyxfZJfIXF+y2jGRNVn5ks6peYPmbMw+Y4 zNoJ5mnyhR2DlnxGIk+4QkqRNZbFp47M1VPbwkUFHe4hUvP+MpSkIEE2VGK0tbDZIaZ4trr+tZrl GAlBuRk8jSJkQBP/Ouq+kYgb8gY89VCy4A7V96PyqG1WoM6RwUyNQiB/dK2fsL41Os8yWkwcd6p+ oscC+Y970qMOkL2TSkcsbCRYk1lpxZK95C6GHw== ) ;; 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 f.root-servers.net for GOV/DS
	Received 367 bytes from 192.5.5.241
	;; Response received from [192.5.5.241] 367 octets ;; HEADER SECTION ;; id = 6871 ;; 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": 1472, ;; "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 20260420050000 20260407040000 54393 . F97YLSFpv2sLp0FOw10c408U2gnTOh9jrcZPM+Q83QGjGlMaKLJifTlgwgeXiQJzrLz2ZUnuUV3z U0t1mafpjHmbDED9lsLeBmq4dOJufGLJAF9NgIxpl9oyxfZJfIXF+y2jGRNVn5ks6peYPmbMw+Y4 zNoJ5mnyhR2DlnxGIk+4QkqRNZbFp47M1VPbwkUFHe4hUvP+MpSkIEE2VGK0tbDZIaZ4trr+tZrl GAlBuRk8jSJkQBP/Ouq+kYgb8gY89VCy4A7V96PyqG1WoM6RwUyNQiB/dK2fsL41Os8yWkwcd6p+ oscC+Y970qMOkL2TSkcsbCRYk1lpxZK95C6GHw== ) ;; 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 20260420050000 20260407040000 54393 . F97YLSFpv2sLp0FOw10c408U2gnTOh9jrcZPM+Q83QGjGlMaKLJifTlgwgeXiQJzrLz2ZUnuUV3z U0t1mafpjHmbDED9lsLeBmq4dOJufGLJAF9NgIxpl9oyxfZJfIXF+y2jGRNVn5ks6peYPmbMw+Y4 zNoJ5mnyhR2DlnxGIk+4QkqRNZbFp47M1VPbwkUFHe4hUvP+MpSkIEE2VGK0tbDZIaZ4trr+tZrl GAlBuRk8jSJkQBP/Ouq+kYgb8gY89VCy4A7V96PyqG1WoM6RwUyNQiB/dK2fsL41Os8yWkwcd6p+ oscC+Y970qMOkL2TSkcsbCRYk1lpxZK95C6GHw== )`
	RRSIG=54393 and DNSKEY=54393 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 a.ns.GOV for GOV/DNSKEY
	Received 291 bytes from 199.33.230.1
	;; Response received from [199.33.230.1] 291 octets ;; HEADER SECTION ;; id = 32956 ;; 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 20260605110630 20260405110630 2536 gov. 2iHkI6KNpypgXNkkvAKmXKicvyZoEJm+L3HYyM8970H7lTBFwiVYd2cum3MuioVU5WzMEQw1k1c6 /r/8XT47qw== ) ;; 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 20260605110630 20260405110630 2536 gov. 2iHkI6KNpypgXNkkvAKmXKicvyZoEJm+L3HYyM8970H7lTBFwiVYd2cum3MuioVU5WzMEQw1k1c6 /r/8XT47qw== )`
	RRSIG=2536 and DNSKEY=2536/SEP verifies the DNSKEY RRset
	DNSKEY=35496 is now in the chain-of-trust
	Query to c.ns.GOV for NBC.GOV/A
	Received 237 bytes from 199.33.232.1
	;; Response received from [199.33.232.1] 237 octets ;; HEADER SECTION ;; id = 36087 ;; 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 20260408104143 20260406084143 35496 gov. 4IC/wVHnXzmR9rGb6zPcRcX6IkYRsuAajavOIjkYcR7DqU6CLxM8HYNxZODKdZ6qx2Uxip/djUkq zmSIHOkHzg== ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Query to a.ns.GOV for NBC.GOV/DNSKEY
	Received 237 bytes from 199.33.230.1
	;; Response received from [199.33.230.1] 237 octets ;; HEADER SECTION ;; id = 29192 ;; 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 20260408104143 20260406084143 35496 gov. d+NeE9+/WA5LJf8UEzt1LyJuFnz804UQvqCcqfoNOgjbjlXMXBplimrOJm/EHtU0IRf9gnjsCYhd dqeAhFApXw== ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found child zone NBC.GOV

NBC.GOV

	Checking DS between GOV and NBC.GOV
	Query to c.ns.GOV for NBC.GOV/DS
	Received 183 bytes from 199.33.232.1
	;; Response received from [199.33.232.1] 183 octets ;; HEADER SECTION ;; id = 48406 ;; 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 20260408104143 20260406084143 35496 gov. 3Rxmbjb0ZicgTQIRSV1rnz9m+29MXAuxtpmxbAiMthA2cjemFGF7UGsB5eFCQ9ONPIrVSJV6HMMs KZ/HyNPq/A== ) ;; 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 20260408104143 20260406084143 35496 gov. 3Rxmbjb0ZicgTQIRSV1rnz9m+29MXAuxtpmxbAiMthA2cjemFGF7UGsB5eFCQ9ONPIrVSJV6HMMs KZ/HyNPq/A== )`
	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 liz.ns.cloudflare.com for NBC.GOV/DNSKEY
	Received 299 bytes from 172.64.32.189
	;; Response received from [172.64.32.189] 299 octets ;; HEADER SECTION ;; id = 44022 ;; 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 20260603194403 20260403194403 2371 nbc.gov. 1eKnu7Nbxs+LZLGTjZdeKfV1f7JhHuFYfrVSdt25KQ1JXAicCqfh/7115CHeFU5YLsWGU/kBsHzl uGHZ9/HQ0A== ) ;; 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 20260603194403 20260403194403 2371 nbc.gov. 1eKnu7Nbxs+LZLGTjZdeKfV1f7JhHuFYfrVSdt25KQ1JXAicCqfh/7115CHeFU5YLsWGU/kBsHzl uGHZ9/HQ0A== )`
	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 = 50382 ;; 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. 2400817548 ;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 20260408104143 20260406084143 34505 nbc.gov. k6jB1qsyvmAqoveY0QRJ57HHF4vhMkDLjHK6jwqWhKn5G9DtSw+3d/M2qCn/A5XPWcWCzZlmCsQ3 H7YwxTIqMw== ) NBC.GOV. 1800 IN RRSIG ( SOA 13 2 1800 20260408104143 20260406084143 34505 nbc.gov. JaNQmvzLzf1Q/v0mfrNfuFoqqHKC5dQfmRclFz3q9UvTEfPUstfPURLAatMTWXpAk1s1BnCr4Zr4 5FLJCDgcMA== ) ;; 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 = 26894 ;; 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. 2400817548 ;serial 10000 ;refresh 2400 ;retry 604800 ;expire 1800 ;minimum ) NBC.GOV. 1800 IN RRSIG ( SOA 13 2 1800 20260408104143 20260406084143 34505 nbc.gov. b8cscs1xJf9r0FnzWs4Rbrjdi8DFP+WvdSoytq4uok69B34ZdlExxwexHZxgqz6cJZaTBFFfhHSh AMKH2suO5w== ) ;; 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 = 49911 ;; 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. 2400817548 ;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 20260408104143 20260406084143 34505 nbc.gov. ozE3UjIBqekwSF6vxcDC0Cin0EDLFAcFFuLcDpSelsA9b9FuMvhdvI3Ddcw2mkYh7F6oj2sbDr3N 0B3/HIzm6g== ) NBC.GOV. 1800 IN RRSIG ( SOA 13 2 1800 20260408104143 20260406084143 34505 nbc.gov. 1FHLY3WIZtU4qCbApODegrswL7n3hVsM8+xF2mcZFIixzAjzCJHMPACJSX5kW+fH+y57vk0Cu3wa wERQdXvvxA== ) ;; 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 20260408104143 20260406084143 34505 nbc.gov. ozE3UjIBqekwSF6vxcDC0Cin0EDLFAcFFuLcDpSelsA9b9FuMvhdvI3Ddcw2mkYh7F6oj2sbDr3N 0B3/HIzm6g== )`
	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 20260408104143 20260406084143 34505 nbc.gov. JaNQmvzLzf1Q/v0mfrNfuFoqqHKC5dQfmRclFz3q9UvTEfPUstfPURLAatMTWXpAk1s1BnCr4Zr4 5FLJCDgcMA== )`
	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 = 27093 ;; 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. 2400817548 ;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 20260408104143 20260406084143 34505 nbc.gov. 7tbM2tNrLgJTPMb4cc5WN6WeULaeNs06be+cf/jcnj6jKYytVo5fQIYuBw2amWL3U4uHFRVoPQAe vcPIyPSLgA== ) NBC.GOV. 1800 IN RRSIG ( NSEC 13 2 1800 20260408104143 20260406084143 34505 nbc.gov. xgbVsGaqSnQTTmdJGb+d/fS5UrsBFwDXQsBqivJqRwgTtBuHQQNt2ws1IdvuXU04lrrXzTQhCz0D 6rx7hNz44A== ) ;; 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 172.64.32.189
	;; Response received from [172.64.32.189] 340 octets ;; HEADER SECTION ;; id = 40716 ;; 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. 2400817548 ;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 20260408104143 20260406084143 34505 nbc.gov. k2jS6igyhZ+2WY++uqQtn5Dqqu8H5e3mA7e4dgOBcrm4XF6elbktqTB7AEwdqWYXp5ou/1arvYM8 UGgmXCEIng== ) NBC.GOV. 1800 IN RRSIG ( NSEC 13 2 1800 20260408104143 20260406084143 34505 nbc.gov. 2PeMjF/zTiBaCgJ9OLlZNCKQWt4MPfkRCmn76f26z1gfD4nSL5C3/7EoYTUzm+6iNzzUEuwUHH+u fnHtExuFiQ== ) ;; 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 20260408104143 20260406084143 34505 nbc.gov. 2PeMjF/zTiBaCgJ9OLlZNCKQWt4MPfkRCmn76f26z1gfD4nSL5C3/7EoYTUzm+6iNzzUEuwUHH+u fnHtExuFiQ== )`
	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 20260408104143 20260406084143 34505 nbc.gov. 7tbM2tNrLgJTPMb4cc5WN6WeULaeNs06be+cf/jcnj6jKYytVo5fQIYuBw2amWL3U4uHFRVoPQAe vcPIyPSLgA== )`
	RRSIG=34505 and DNSKEY=34505 verifies the SOA RRset

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

DNSSEC Debugger

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