DNSSEC Debugger - airnow.gov

Back to Verisign Labs Tools

Domain Name:

Detail: more(+) / less(-)

Time: 2026-09-27 16:56:47 UTC

Analyzing DNSSEC problems for airnow.gov

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

DS=38696/SHA-256 is now in the chain-of-trust

	Checking DS between Trust Anchor and .
	`. IN DS ( 20326 8 2 e06d44b80b8f1d39a95c0b0d7c65d08458e880409bbc683457104237c7f8ec8d )`
	`. IN DS ( 38696 8 2 683d2d0acb8c9b712a1948b27f741219298d0a450d612c483af444a4c0fb2b16 )`
	Query to b.root-servers.net for ./DNSKEY
	Received 1414 bytes from 170.247.170.2
	;; Response received from [170.247.170.2] 1414 octets ;; HEADER SECTION ;; id = 31678 ;; 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": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; . IN DNSKEY ;; ANSWER SECTION (5 records) . 172800 IN DNSKEY ( 256 3 8 AwEAAcorNxNc9t0ue1ZenPjVMRujlQ2YLBJ0pR/4XMjHby9vr03cRxFSKnWpxeg5PL384D9VeqdS 1bjrGyTsHtoagzI3NiXFd8sjHMOnZxu5pp/+UBIg7tasYgVMMdUiM1Yu/c+t30d1Qw/v6NYLNnOn ywTu6HuUh7Y1sZRq/GZcrxLENXHQoyKpOrOr8R3+qd6wK69IKB80ZBZtkX9rdEqKJk+yYXjEZzZ0 zkAFthmNgCreAoU9PVlU66dyOsaLjf3wKUlUm9SNOKs+tK6LuSmRbK6+1T/tPaRaMBSEuv2G6vXf nJ1uyMbGvtpRn/YDcvTjrp6DzE6XyF44QdwJ3oKx4ek= ) ; keytag 8763 . 172800 IN DNSKEY ( 256 3 8 AwEAAeCYD6Z7WWKVLeuWgowKP+3g+Gs1cnLKq7a3CaQxQpv8bfuFVI0WnG33qaSH/Mw9IBgifrdz f4XY/DQLnyBJ9MfaOyAWuEaEmYJ+GQPiwVVfstGwSA1McfFJUttTgq2Huu74KARhtA8wPo/N3Xcy YQtNhz+qCM5NBb3ecx/naw6sYab9LxS6f2cU0q03++BP5Ks0Uef8WJCa/1izCYE+vMkwoltV+tEN a3hpXiZ7jle/xdgaZrPi5ZGmyLVI34g1XVYrNlsCCTmNvFQIfzW5STFQFsQpizczyFn9r3LzSxxP CNwdlCG84bER0BmdwqbF6Tanv+FxMOavrahkj4wIy5k= ) ; keytag 57780 . 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 20261010000000 20260919000000 20326 . SeT2U+BKi7S4R7OPnQ0EBjS6DtsNPasISEAE3iOUQWl552IWiqHLBYkZOa5au73wjV5oH9vQleMB gtIQleByqX74kORDKMmx+EIhhDmiNOf9w33OqM4+s0Etem28QjqQ9e4QgsKI6N39HDMedL31iybJ n6ghPcDT73IyzgTs6mtyV+Lpu1ZqH1yXNNB34YsEzgquGDKU7QkAlQMupqKlZOhJC2pj4724Fzjr MXq68MYAitHMmfnrm2/iqP8i0jIrIQgIl4mVOO4VxMZEsQa+ESJWEBQJ3Fu3jLRII/xIEq1qXb8F 87yhBvKhzuyLfQGaKttdkN9oudecqKuNezNp0g== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 4 DNSKEY records for .
	`. 172800 IN DNSKEY ( 256 3 8 AwEAAcorNxNc9t0ue1ZenPjVMRujlQ2YLBJ0pR/4XMjHby9vr03cRxFSKnWpxeg5PL384D9VeqdS 1bjrGyTsHtoagzI3NiXFd8sjHMOnZxu5pp/+UBIg7tasYgVMMdUiM1Yu/c+t30d1Qw/v6NYLNnOn ywTu6HuUh7Y1sZRq/GZcrxLENXHQoyKpOrOr8R3+qd6wK69IKB80ZBZtkX9rdEqKJk+yYXjEZzZ0 zkAFthmNgCreAoU9PVlU66dyOsaLjf3wKUlUm9SNOKs+tK6LuSmRbK6+1T/tPaRaMBSEuv2G6vXf nJ1uyMbGvtpRn/YDcvTjrp6DzE6XyF44QdwJ3oKx4ek= ) ; keytag 8763`
	`. 172800 IN DNSKEY ( 256 3 8 AwEAAeCYD6Z7WWKVLeuWgowKP+3g+Gs1cnLKq7a3CaQxQpv8bfuFVI0WnG33qaSH/Mw9IBgifrdz f4XY/DQLnyBJ9MfaOyAWuEaEmYJ+GQPiwVVfstGwSA1McfFJUttTgq2Huu74KARhtA8wPo/N3Xcy YQtNhz+qCM5NBb3ecx/naw6sYab9LxS6f2cU0q03++BP5Ks0Uef8WJCa/1izCYE+vMkwoltV+tEN a3hpXiZ7jle/xdgaZrPi5ZGmyLVI34g1XVYrNlsCCTmNvFQIfzW5STFQFsQpizczyFn9r3LzSxxP CNwdlCG84bER0BmdwqbF6Tanv+FxMOavrahkj4wIy5k= ) ; keytag 57780`
	`. 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
	DNSKEY=38696/SEP is now in the chain-of-trust
	DS=38696/SHA-256 verifies DNSKEY=38696/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`. 172800 IN RRSIG ( DNSKEY 8 0 172800 20261010000000 20260919000000 20326 . SeT2U+BKi7S4R7OPnQ0EBjS6DtsNPasISEAE3iOUQWl552IWiqHLBYkZOa5au73wjV5oH9vQleMB gtIQleByqX74kORDKMmx+EIhhDmiNOf9w33OqM4+s0Etem28QjqQ9e4QgsKI6N39HDMedL31iybJ n6ghPcDT73IyzgTs6mtyV+Lpu1ZqH1yXNNB34YsEzgquGDKU7QkAlQMupqKlZOhJC2pj4724Fzjr MXq68MYAitHMmfnrm2/iqP8i0jIrIQgIl4mVOO4VxMZEsQa+ESJWEBQJ3Fu3jLRII/xIEq1qXb8F 87yhBvKhzuyLfQGaKttdkN9oudecqKuNezNp0g== )`
	RRSIG=20326 and DNSKEY=20326/SEP verifies the DNSKEY RRset
	DNSKEY=8763 is now in the chain-of-trust
	DNSKEY=57780 is now in the chain-of-trust
	Query to g.root-servers.net for airnow.gov/A
	Received 617 bytes from 192.112.36.4
	;; Response received from [192.112.36.4] 617 octets ;; HEADER SECTION ;; id = 58747 ;; 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) ;; airnow.gov. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (6 records) gov. 172800 IN NS b.ns.gov. gov. 172800 IN NS c.ns.gov. gov. 172800 IN NS d.ns.gov. gov. 172800 IN NS a.ns.gov. gov. 86400 IN DS ( 2536 13 2 0baf26b7bbf313a859046fd3b1ee49ddfba33934cfb3e717c21e2a2935c2f259 ) gov. 86400 IN RRSIG ( DS 8 1 86400 20261010050000 20260927040000 57780 . VEUYkZP1qnw2PKUty0lz/J6T35X826Zyjso3soWQEqB07DesGjsw8Nt1x6NdKaAr3S3MKeVZgUQT 6l2qX1aQ40KlUJeroh39gn2dkiW9ILbGjV9nt6lrMs+VnxlR/bFcc35fIBHRCIqwo1QuAAo21gkq IOceN6yMjRjpa2+jsJrwur9/MWCYTmo/gdYn64u89zyVURyB1E4FiRlJAeZc01gwpHdZMUC2ciqT 5W/keEMqPZbu9qXo7dcavllPSFJX3oO6KNLTpwrDdP+1CddNxUrYIeUc6daiq6AdShqJFn7rvSo0 dXPk3B0wYzbStnRv2n6ULiSBZUGH+DkNkrZw4Q== ) ;; 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 a.root-servers.net for gov/DNSKEY
	Received 610 bytes from 198.41.0.4
	;; Response received from [198.41.0.4] 610 octets ;; HEADER SECTION ;; id = 12709 ;; 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": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; gov. IN DNSKEY ;; 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 d.ns.gov. gov. 172800 IN NS b.ns.gov. gov. 86400 IN DS ( 2536 13 2 0baf26b7bbf313a859046fd3b1ee49ddfba33934cfb3e717c21e2a2935c2f259 ) gov. 86400 IN RRSIG ( DS 8 1 86400 20261010050000 20260927040000 57780 . VEUYkZP1qnw2PKUty0lz/J6T35X826Zyjso3soWQEqB07DesGjsw8Nt1x6NdKaAr3S3MKeVZgUQT 6l2qX1aQ40KlUJeroh39gn2dkiW9ILbGjV9nt6lrMs+VnxlR/bFcc35fIBHRCIqwo1QuAAo21gkq IOceN6yMjRjpa2+jsJrwur9/MWCYTmo/gdYn64u89zyVURyB1E4FiRlJAeZc01gwpHdZMUC2ciqT 5W/keEMqPZbu9qXo7dcavllPSFJX3oO6KNLTpwrDdP+1CddNxUrYIeUc6daiq6AdShqJFn7rvSo0 dXPk3B0wYzbStnRv2n6ULiSBZUGH+DkNkrZw4Q== ) ;; ADDITIONAL SECTION (9 records) c.ns.gov. 172800 IN A 199.33.232.1 c.ns.gov. 172800 IN AAAA 2001:503:ff42::1 a.ns.gov. 172800 IN A 199.33.230.1 a.ns.gov. 172800 IN AAAA 2001:503:ff40::1 d.ns.gov. 172800 IN A 199.33.233.1 d.ns.gov. 172800 IN AAAA 2001:503:ff43::1 b.ns.gov. 172800 IN A 199.33.231.1 b.ns.gov. 172800 IN AAAA 2001:503:ff41::1 ;; { "EDNS-VERSION": 0 }
	Found child zone gov

gov

	Checking DS between . and gov
	Query to e.root-servers.net for gov/DS
	Received 367 bytes from 192.203.230.10
	;; Response received from [192.203.230.10] 367 octets ;; HEADER SECTION ;; id = 4164 ;; 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 20261010050000 20260927040000 57780 . VEUYkZP1qnw2PKUty0lz/J6T35X826Zyjso3soWQEqB07DesGjsw8Nt1x6NdKaAr3S3MKeVZgUQT 6l2qX1aQ40KlUJeroh39gn2dkiW9ILbGjV9nt6lrMs+VnxlR/bFcc35fIBHRCIqwo1QuAAo21gkq IOceN6yMjRjpa2+jsJrwur9/MWCYTmo/gdYn64u89zyVURyB1E4FiRlJAeZc01gwpHdZMUC2ciqT 5W/keEMqPZbu9qXo7dcavllPSFJX3oO6KNLTpwrDdP+1CddNxUrYIeUc6daiq6AdShqJFn7rvSo0 dXPk3B0wYzbStnRv2n6ULiSBZUGH+DkNkrZw4Q== ) ;; 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 20261010050000 20260927040000 57780 . VEUYkZP1qnw2PKUty0lz/J6T35X826Zyjso3soWQEqB07DesGjsw8Nt1x6NdKaAr3S3MKeVZgUQT 6l2qX1aQ40KlUJeroh39gn2dkiW9ILbGjV9nt6lrMs+VnxlR/bFcc35fIBHRCIqwo1QuAAo21gkq IOceN6yMjRjpa2+jsJrwur9/MWCYTmo/gdYn64u89zyVURyB1E4FiRlJAeZc01gwpHdZMUC2ciqT 5W/keEMqPZbu9qXo7dcavllPSFJX3oO6KNLTpwrDdP+1CddNxUrYIeUc6daiq6AdShqJFn7rvSo0 dXPk3B0wYzbStnRv2n6ULiSBZUGH+DkNkrZw4Q== )`
	RRSIG=57780 and DNSKEY=57780 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 = 45949 ;; 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 20261120110642 20260920110642 2536 gov. cfy+HEpjo649lgn0nmaZm2dw0PRBEIyKW7LtCSFSDTfc5dt/MTrQAxq5b6QAG5LqJnvI9gWiBeUg ios+M1nt8g== ) ;; 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 20261120110642 20260920110642 2536 gov. cfy+HEpjo649lgn0nmaZm2dw0PRBEIyKW7LtCSFSDTfc5dt/MTrQAxq5b6QAG5LqJnvI9gWiBeUg ios+M1nt8g== )`
	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 airnow.gov/A
	Received 496 bytes from 199.33.232.1
	;; Response received from [199.33.232.1] 496 octets ;; HEADER SECTION ;; id = 8282 ;; 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 = 7 arcount = 9 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; airnow.gov. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (7 records) airnow.gov. 10800 IN NS dcns1.epa.gov. airnow.gov. 10800 IN NS dcns2.epa.gov. airnow.gov. 10800 IN NS nccns1.epa.gov. airnow.gov. 10800 IN NS nccns2.epa.gov. airnow.gov. 3600 IN DS ( 13009 8 2 3153a088767dff5f4411037dca8dc1cbfdb8880e7151de61c91eba6175a580c9 ) airnow.gov. 3600 IN DS ( 21100 8 2 cd16197227bea526e1506d3e90731352ea6ae9e6a0b3c0dfb429c7a246c695ea ) airnow.gov. 3600 IN RRSIG ( DS 13 2 3600 20260928175648 20260926155648 35496 gov. YIX+BYr068SUwcjWgzWUC5y83v0mjkqxSRMs2MonjiKXRGh0KposBcQkPQ6woPb/+t9uvsFLLR1z iDXCqy0hVA== ) ;; ADDITIONAL SECTION (9 records) dcns1.epa.gov. 3600 IN A 161.80.212.5 dcns1.epa.gov. 3600 IN AAAA 2620:117:5071:d4::f005 dcns2.epa.gov. 3600 IN A 161.80.212.15 dcns2.epa.gov. 3600 IN AAAA 2620:117:5071:d4::f00f nccns1.epa.gov. 3600 IN A 134.67.12.5 nccns1.epa.gov. 3600 IN AAAA 2620:117:506f:c::f005 nccns2.epa.gov. 3600 IN A 134.67.12.15 nccns2.epa.gov. 3600 IN AAAA 2620:117:506f:c::f00f ;; { "EDNS-VERSION": 0 }
	Query to d.ns.gov for airnow.gov/DNSKEY
	Received 496 bytes from 199.33.233.1
	;; Response received from [199.33.233.1] 496 octets ;; HEADER SECTION ;; id = 59875 ;; 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 = 7 arcount = 9 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; airnow.gov. IN DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (7 records) airnow.gov. 10800 IN NS dcns1.epa.gov. airnow.gov. 10800 IN NS dcns2.epa.gov. airnow.gov. 10800 IN NS nccns1.epa.gov. airnow.gov. 10800 IN NS nccns2.epa.gov. airnow.gov. 3600 IN DS ( 13009 8 2 3153a088767dff5f4411037dca8dc1cbfdb8880e7151de61c91eba6175a580c9 ) airnow.gov. 3600 IN DS ( 21100 8 2 cd16197227bea526e1506d3e90731352ea6ae9e6a0b3c0dfb429c7a246c695ea ) airnow.gov. 3600 IN RRSIG ( DS 13 2 3600 20260928175648 20260926155648 35496 gov. 6wwVJu9gXzWANTNaaPXaqj7gH7S+OKMC3mBL7JfvgA8n933TS9a0nAbeRZsWXVfb5LxQ5AXXAS+n 1GLpK1VSQQ== ) ;; ADDITIONAL SECTION (9 records) dcns1.epa.gov. 3600 IN A 161.80.212.5 dcns1.epa.gov. 3600 IN AAAA 2620:117:5071:d4::f005 dcns2.epa.gov. 3600 IN A 161.80.212.15 dcns2.epa.gov. 3600 IN AAAA 2620:117:5071:d4::f00f nccns1.epa.gov. 3600 IN A 134.67.12.5 nccns1.epa.gov. 3600 IN AAAA 2620:117:506f:c::f005 nccns2.epa.gov. 3600 IN A 134.67.12.15 nccns2.epa.gov. 3600 IN AAAA 2620:117:506f:c::f00f ;; { "EDNS-VERSION": 0 }
	Found child zone airnow.gov

airnow.gov

	Checking DS between gov and airnow.gov
	Query to a.ns.gov for airnow.gov/DS
	Received 234 bytes from 199.33.230.1
	;; Response received from [199.33.230.1] 234 octets ;; HEADER SECTION ;; id = 49676 ;; 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) ;; airnow.gov. IN DS ;; ANSWER SECTION (3 records) airnow.gov. 3600 IN DS ( 13009 8 2 3153a088767dff5f4411037dca8dc1cbfdb8880e7151de61c91eba6175a580c9 ) airnow.gov. 3600 IN DS ( 21100 8 2 cd16197227bea526e1506d3e90731352ea6ae9e6a0b3c0dfb429c7a246c695ea ) airnow.gov. 3600 IN RRSIG ( DS 13 2 3600 20260928175648 20260926155648 35496 gov. iTREuuLIypk1A7hI8f3WZi9p6uGpelxqlao/pXyAdj6tMPI0FEnJ2j+BMwxn/LIRUeY5EzrFgapU nLaSvkjPKQ== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 2 DS records for airnow.gov in the gov zone
	DS=13009/SHA-256 has algorithm RSASHA256
	DS=21100/SHA-256 has algorithm RSASHA256
	Found 1 RRSIGs over DS RRset
	`airnow.gov. 3600 IN RRSIG ( DS 13 2 3600 20260928175648 20260926155648 35496 gov. iTREuuLIypk1A7hI8f3WZi9p6uGpelxqlao/pXyAdj6tMPI0FEnJ2j+BMwxn/LIRUeY5EzrFgapU nLaSvkjPKQ== )`
	RRSIG=35496 and DNSKEY=35496 verifies the DS RRset
	DS=13009/SHA-256 is now in the chain-of-trust
	DS=21100/SHA-256 is now in the chain-of-trust
	`airnow.gov. 3600 IN DS ( 13009 8 2 3153a088767dff5f4411037dca8dc1cbfdb8880e7151de61c91eba6175a580c9 )`
	`airnow.gov. 3600 IN DS ( 21100 8 2 cd16197227bea526e1506d3e90731352ea6ae9e6a0b3c0dfb429c7a246c695ea )`
	Query to dcns2.epa.gov for airnow.gov/DNSKEY
	Received 1079 bytes from 161.80.212.15
	;; Response received from [161.80.212.15] 1079 octets ;; HEADER SECTION ;; id = 18993 ;; 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": 1220, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; airnow.gov. IN DNSKEY ;; ANSWER SECTION (5 records) airnow.gov. 172800 IN DNSKEY ( 256 3 8 AwEAAZvk9Om43A920i1ikw1Bk6ULJ9qfvnUBi1TsXEQ9z5KIq4IJ1rdE0ZiyfIHzEEqmXm7+x9JZ 3VuIUEIErKOBspzqQTQxu0FOnBKxbhLab2MluQwZGR4ezrsi8kZwJJFlCk/YMNVQjS6dkjkTK7y8 Om04iWR6mZ4Ia8tjnLPVY01v ) ; keytag 7356 airnow.gov. 172800 IN DNSKEY ( 257 3 8 AwEAAdDhmB/gcw12Toqwh+oX7jNMnpk7KNPMTo+pojHVhRUq2hafaMTLIvzdjwafjbKz4wm4tIgx 87DwmnFs47tOwVrgna1/RVw3mOYQgKGswb9C4Zv0HrOOaFyUQWCm/qDQqa3NyO0D7fp8FjDamSOh h5o15uUlanonvqg1slNnHaEJj8jh/49Ha6sUbRH1BlWAWB8YB04QQG/thnrq/TLLuLgJp1xMRev7 fYcmng8nlmZPyDcI7bGbEHzywrylwej0lsoZ8xvaD/Jy79/eFFLWnTjbS9piqOnp4ODVF6/xPQ8p I3Piynru2d/OzHeyhkpqDyhMkigemZr0eGIcsmGzzdU= ) ; keytag 21100 airnow.gov. 172800 IN DNSKEY ( 256 3 8 AwEAAcR0pcBGQDqyuFTR6om2N8F9DRycrwP0xs8CJg8qCW000dT/3/YqCqISN9hlcjfK8I6fsGaH 9IDVDbZxmGtBVY2OEScbzB6SKS++7unDbhXXC4x+tEbKrJlj04bSmIf6oTXcwFhOuTuNGf1EjY1K inLCRCNFGF4TkKmY4mLdintR ) ; keytag 32203 airnow.gov. 172800 IN RRSIG ( DNSKEY 8 2 172800 20260926150618 20260922141154 7356 airnow.gov. MMB+n/h1anfIM9yibHw9F57oVeSgyCCgiAGgRont3ktAboiOnxNqKUziFzbXiJBPY+1ag3QIer0W vIF03V4GaZPU0e5N7gjVywv1VsoeuuinZx658DDN/AV07atMkovRligdCB8BZ9938lgRqNNMht/x s3EKhMRjPHSXhC2owLA= ) airnow.gov. 172800 IN RRSIG ( DNSKEY 8 2 172800 20260926150618 20260922141154 21100 airnow.gov. uKLYcM3yJN9R9HBmfgkhu0r+EaWHh65j4D5/zlFe/3KO9TU10T8pDxDiyUpmUOY+LEK1mCS5ykIK 4vEbrlg3ZR0hiMJwSGx3G2nj6EQOiteLtnzru9jxJ/P+sEDnSH9YaQvQAIGl5Tzylh196yRueMiO gCByYKpueBG+tOMyWfKKi/IhDlDwMHYZrX1qNxbtPzFcYcUZtOSxsqVn6P/2CtCJ3sMcZA4+wujI sVN5VM5ZzrWMrdwxBo1R5xEuNR4jZXIurVYgk5mDc6NwG5un9wFGdksVnbv3FHwcMPmmYxVUCy72 vVdVfE6cWYKuP0pcFuS3B+ZJY4Sdf9ynEK2HHw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 3 DNSKEY records for airnow.gov
	`airnow.gov. 172800 IN DNSKEY ( 256 3 8 AwEAAZvk9Om43A920i1ikw1Bk6ULJ9qfvnUBi1TsXEQ9z5KIq4IJ1rdE0ZiyfIHzEEqmXm7+x9JZ 3VuIUEIErKOBspzqQTQxu0FOnBKxbhLab2MluQwZGR4ezrsi8kZwJJFlCk/YMNVQjS6dkjkTK7y8 Om04iWR6mZ4Ia8tjnLPVY01v ) ; keytag 7356`
	`airnow.gov. 172800 IN DNSKEY ( 257 3 8 AwEAAdDhmB/gcw12Toqwh+oX7jNMnpk7KNPMTo+pojHVhRUq2hafaMTLIvzdjwafjbKz4wm4tIgx 87DwmnFs47tOwVrgna1/RVw3mOYQgKGswb9C4Zv0HrOOaFyUQWCm/qDQqa3NyO0D7fp8FjDamSOh h5o15uUlanonvqg1slNnHaEJj8jh/49Ha6sUbRH1BlWAWB8YB04QQG/thnrq/TLLuLgJp1xMRev7 fYcmng8nlmZPyDcI7bGbEHzywrylwej0lsoZ8xvaD/Jy79/eFFLWnTjbS9piqOnp4ODVF6/xPQ8p I3Piynru2d/OzHeyhkpqDyhMkigemZr0eGIcsmGzzdU= ) ; keytag 21100`
	`airnow.gov. 172800 IN DNSKEY ( 256 3 8 AwEAAcR0pcBGQDqyuFTR6om2N8F9DRycrwP0xs8CJg8qCW000dT/3/YqCqISN9hlcjfK8I6fsGaH 9IDVDbZxmGtBVY2OEScbzB6SKS++7unDbhXXC4x+tEbKrJlj04bSmIf6oTXcwFhOuTuNGf1EjY1K inLCRCNFGF4TkKmY4mLdintR ) ; keytag 32203`
	DNSKEY=21100/SEP is now in the chain-of-trust
	DS=21100/SHA-256 verifies DNSKEY=21100/SEP
	DS=13009/SHA-256 is published, but a corresponding DNSKEY is not
	Found 2 RRSIGs over DNSKEY RRset
	`airnow.gov. 172800 IN RRSIG ( DNSKEY 8 2 172800 20260926150618 20260922141154 7356 airnow.gov. MMB+n/h1anfIM9yibHw9F57oVeSgyCCgiAGgRont3ktAboiOnxNqKUziFzbXiJBPY+1ag3QIer0W vIF03V4GaZPU0e5N7gjVywv1VsoeuuinZx658DDN/AV07atMkovRligdCB8BZ9938lgRqNNMht/x s3EKhMRjPHSXhC2owLA= )`
	`airnow.gov. 172800 IN RRSIG ( DNSKEY 8 2 172800 20260926150618 20260922141154 21100 airnow.gov. uKLYcM3yJN9R9HBmfgkhu0r+EaWHh65j4D5/zlFe/3KO9TU10T8pDxDiyUpmUOY+LEK1mCS5ykIK 4vEbrlg3ZR0hiMJwSGx3G2nj6EQOiteLtnzru9jxJ/P+sEDnSH9YaQvQAIGl5Tzylh196yRueMiO gCByYKpueBG+tOMyWfKKi/IhDlDwMHYZrX1qNxbtPzFcYcUZtOSxsqVn6P/2CtCJ3sMcZA4+wujI sVN5VM5ZzrWMrdwxBo1R5xEuNR4jZXIurVYgk5mDc6NwG5un9wFGdksVnbv3FHwcMPmmYxVUCy72 vVdVfE6cWYKuP0pcFuS3B+ZJY4Sdf9ynEK2HHw== )`
	RRSIG=7356 is expired
	RRSIG=21100 is expired
	None of the 2 RRSIG and 3 DNSKEY records validate the DNSKEY RRset
	The DNSKEY RRset was not signed by any trusted keys
	Query to dcns1.epa.gov for airnow.gov/A
	Received 533 bytes from 161.80.212.5
	;; Response received from [161.80.212.5] 533 octets ;; HEADER SECTION ;; id = 48617 ;; 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": 1220, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; airnow.gov. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (4 records) airnow.gov. 900 IN SOA ( rtpgm.ddi.epa.gov. dnsadmin.epa.gov. 2021129501 ;serial 10800 ;refresh 1080 ;retry 2419200 ;expire 900 ;minimum ) airnow.gov. 900 IN RRSIG ( SOA 8 2 3600 20260926151154 20260922141154 7356 airnow.gov. aEQRCcIutRgVismY6zW2+ceCe6SImIdoJDAL5rIS1vOJZjn4d84xG0ymfxBvRQw4Ce+4S2cdfZyS kKQKQYy767EgrHl5oZsEKxBclSa/7deLVPs6gqv1CxrvzcUjOUYF7nLTUahm0ErT9ahAuuynhgde wl1MDnxNgSTWUibwPwA= ) 6507URM6JUJ26PS34IA837TAG4HAJAIN.airnow.gov. 900 IN NSEC3 ( 1 0 10 d6862a656e 7el12gonsf6u4gl4i8h1l2k89mujbhsb NS SOA TXT RRSIG DNSKEY NSEC3PARAM ) 6507URM6JUJ26PS34IA837TAG4HAJAIN.airnow.gov. 900 IN RRSIG ( NSEC3 8 3 900 20260926035432 20260922033312 7356 airnow.gov. Cuk1gr/iC4U3rsXtCNrfAlKPCOEz0wqrdHtUG0bI/26epr2HHrTZpMTUFXRFldS9fl5h/Q81WOt2 OpoLipEmask6bHXy5qXxWW81qbF6jAItbVDISRemfEtJP0u0+10dVwPdoSy/MfZik4TBeSjiFFXi vbB0syE2JSM/8TMmPu0= ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	dcns1.epa.gov is authoritative for airnow.gov
	Found RRSIG signed by airnow.gov zone
	Query to dcns2.epa.gov for airnow.gov/SOA
	Received 278 bytes from 161.80.212.15
	;; Response received from [161.80.212.15] 278 octets ;; HEADER SECTION ;; id = 36629 ;; 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": 1220, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; airnow.gov. IN SOA ;; ANSWER SECTION (2 records) airnow.gov. 3600 IN SOA ( rtpgm.ddi.epa.gov. dnsadmin.epa.gov. 2021129501 ;serial 10800 ;refresh 1080 ;retry 2419200 ;expire 900 ;minimum ) airnow.gov. 3600 IN RRSIG ( SOA 8 2 3600 20260926151154 20260922141154 7356 airnow.gov. aEQRCcIutRgVismY6zW2+ceCe6SImIdoJDAL5rIS1vOJZjn4d84xG0ymfxBvRQw4Ce+4S2cdfZyS kKQKQYy767EgrHl5oZsEKxBclSa/7deLVPs6gqv1CxrvzcUjOUYF7nLTUahm0ErT9ahAuuynhgde wl1MDnxNgSTWUibwPwA= ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Query to nccns1.epa.gov for airnow.gov/SOA
	Received 278 bytes from 134.67.12.5
	;; Response received from [134.67.12.5] 278 octets ;; HEADER SECTION ;; id = 41200 ;; 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": 1220, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; airnow.gov. IN SOA ;; ANSWER SECTION (2 records) airnow.gov. 3600 IN SOA ( rtpgm.ddi.epa.gov. dnsadmin.epa.gov. 2021129501 ;serial 10800 ;refresh 1080 ;retry 2419200 ;expire 900 ;minimum ) airnow.gov. 3600 IN RRSIG ( SOA 8 2 3600 20260926151154 20260922141154 7356 airnow.gov. aEQRCcIutRgVismY6zW2+ceCe6SImIdoJDAL5rIS1vOJZjn4d84xG0ymfxBvRQw4Ce+4S2cdfZyS kKQKQYy767EgrHl5oZsEKxBclSa/7deLVPs6gqv1CxrvzcUjOUYF7nLTUahm0ErT9ahAuuynhgde wl1MDnxNgSTWUibwPwA= ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Query to nccns2.epa.gov for airnow.gov/SOA
	Received 278 bytes from 134.67.12.15
	;; Response received from [134.67.12.15] 278 octets ;; HEADER SECTION ;; id = 39418 ;; 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": 1220, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; airnow.gov. IN SOA ;; ANSWER SECTION (2 records) airnow.gov. 3600 IN SOA ( rtpgm.ddi.epa.gov. dnsadmin.epa.gov. 2021129501 ;serial 10800 ;refresh 1080 ;retry 2419200 ;expire 900 ;minimum ) airnow.gov. 3600 IN RRSIG ( SOA 8 2 3600 20260926151154 20260922141154 7356 airnow.gov. aEQRCcIutRgVismY6zW2+ceCe6SImIdoJDAL5rIS1vOJZjn4d84xG0ymfxBvRQw4Ce+4S2cdfZyS kKQKQYy767EgrHl5oZsEKxBclSa/7deLVPs6gqv1CxrvzcUjOUYF7nLTUahm0ErT9ahAuuynhgde wl1MDnxNgSTWUibwPwA= ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Query to dcns1.epa.gov for airnow.gov/A
	NSEC3 validation not implemented yet
	Found 1 RRSIGs over SOA RRset
	`airnow.gov. 900 IN RRSIG ( SOA 8 2 3600 20260926151154 20260922141154 7356 airnow.gov. aEQRCcIutRgVismY6zW2+ceCe6SImIdoJDAL5rIS1vOJZjn4d84xG0ymfxBvRQw4Ce+4S2cdfZyS kKQKQYy767EgrHl5oZsEKxBclSa/7deLVPs6gqv1CxrvzcUjOUYF7nLTUahm0ErT9ahAuuynhgde wl1MDnxNgSTWUibwPwA= )`
	RRSIG=7356 is expired
	None of the 1 RRSIG and 3 DNSKEY records validate the SOA RRset

airnow.gov

	Query to dcns2.epa.gov for airnow.gov/A
	Received 533 bytes from 161.80.212.15
	;; Response received from [161.80.212.15] 533 octets ;; HEADER SECTION ;; id = 45144 ;; 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": 1220, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; airnow.gov. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (4 records) airnow.gov. 900 IN SOA ( rtpgm.ddi.epa.gov. dnsadmin.epa.gov. 2021129501 ;serial 10800 ;refresh 1080 ;retry 2419200 ;expire 900 ;minimum ) airnow.gov. 900 IN RRSIG ( SOA 8 2 3600 20260926151154 20260922141154 7356 airnow.gov. aEQRCcIutRgVismY6zW2+ceCe6SImIdoJDAL5rIS1vOJZjn4d84xG0ymfxBvRQw4Ce+4S2cdfZyS kKQKQYy767EgrHl5oZsEKxBclSa/7deLVPs6gqv1CxrvzcUjOUYF7nLTUahm0ErT9ahAuuynhgde wl1MDnxNgSTWUibwPwA= ) 6507URM6JUJ26PS34IA837TAG4HAJAIN.airnow.gov. 900 IN NSEC3 ( 1 0 10 d6862a656e 7el12gonsf6u4gl4i8h1l2k89mujbhsb NS SOA TXT RRSIG DNSKEY NSEC3PARAM ) 6507URM6JUJ26PS34IA837TAG4HAJAIN.airnow.gov. 900 IN RRSIG ( NSEC3 8 3 900 20260926035432 20260922033312 7356 airnow.gov. Cuk1gr/iC4U3rsXtCNrfAlKPCOEz0wqrdHtUG0bI/26epr2HHrTZpMTUFXRFldS9fl5h/Q81WOt2 OpoLipEmask6bHXy5qXxWW81qbF6jAItbVDISRemfEtJP0u0+10dVwPdoSy/MfZik4TBeSjiFFXi vbB0syE2JSM/8TMmPu0= ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	dcns2.epa.gov is authoritative for airnow.gov
	Found RRSIG signed by airnow.gov zone
	Query to dcns2.epa.gov for airnow.gov/A
	NSEC3 validation not implemented yet
	Found 1 RRSIGs over SOA RRset
	`airnow.gov. 900 IN RRSIG ( SOA 8 2 3600 20260926151154 20260922141154 7356 airnow.gov. aEQRCcIutRgVismY6zW2+ceCe6SImIdoJDAL5rIS1vOJZjn4d84xG0ymfxBvRQw4Ce+4S2cdfZyS kKQKQYy767EgrHl5oZsEKxBclSa/7deLVPs6gqv1CxrvzcUjOUYF7nLTUahm0ErT9ahAuuynhgde wl1MDnxNgSTWUibwPwA= )`
	RRSIG=7356 is expired
	None of the 1 RRSIG and 3 DNSKEY records validate the SOA RRset

airnow.gov

	Query to nccns1.epa.gov for airnow.gov/A
	Received 533 bytes from 134.67.12.5
	;; Response received from [134.67.12.5] 533 octets ;; HEADER SECTION ;; id = 37660 ;; 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": 1220, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; airnow.gov. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (4 records) airnow.gov. 900 IN SOA ( rtpgm.ddi.epa.gov. dnsadmin.epa.gov. 2021129501 ;serial 10800 ;refresh 1080 ;retry 2419200 ;expire 900 ;minimum ) airnow.gov. 900 IN RRSIG ( SOA 8 2 3600 20260926151154 20260922141154 7356 airnow.gov. aEQRCcIutRgVismY6zW2+ceCe6SImIdoJDAL5rIS1vOJZjn4d84xG0ymfxBvRQw4Ce+4S2cdfZyS kKQKQYy767EgrHl5oZsEKxBclSa/7deLVPs6gqv1CxrvzcUjOUYF7nLTUahm0ErT9ahAuuynhgde wl1MDnxNgSTWUibwPwA= ) 6507URM6JUJ26PS34IA837TAG4HAJAIN.airnow.gov. 900 IN NSEC3 ( 1 0 10 d6862a656e 7el12gonsf6u4gl4i8h1l2k89mujbhsb NS SOA TXT RRSIG DNSKEY NSEC3PARAM ) 6507URM6JUJ26PS34IA837TAG4HAJAIN.airnow.gov. 900 IN RRSIG ( NSEC3 8 3 900 20260926035432 20260922033312 7356 airnow.gov. Cuk1gr/iC4U3rsXtCNrfAlKPCOEz0wqrdHtUG0bI/26epr2HHrTZpMTUFXRFldS9fl5h/Q81WOt2 OpoLipEmask6bHXy5qXxWW81qbF6jAItbVDISRemfEtJP0u0+10dVwPdoSy/MfZik4TBeSjiFFXi vbB0syE2JSM/8TMmPu0= ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	nccns1.epa.gov is authoritative for airnow.gov
	Found RRSIG signed by airnow.gov zone
	Query to nccns1.epa.gov for airnow.gov/A
	NSEC3 validation not implemented yet
	Found 1 RRSIGs over SOA RRset
	`airnow.gov. 900 IN RRSIG ( SOA 8 2 3600 20260926151154 20260922141154 7356 airnow.gov. aEQRCcIutRgVismY6zW2+ceCe6SImIdoJDAL5rIS1vOJZjn4d84xG0ymfxBvRQw4Ce+4S2cdfZyS kKQKQYy767EgrHl5oZsEKxBclSa/7deLVPs6gqv1CxrvzcUjOUYF7nLTUahm0ErT9ahAuuynhgde wl1MDnxNgSTWUibwPwA= )`
	RRSIG=7356 is expired
	None of the 1 RRSIG and 3 DNSKEY records validate the SOA RRset

airnow.gov

	Query to nccns2.epa.gov for airnow.gov/A
	Received 533 bytes from 134.67.12.15
	;; Response received from [134.67.12.15] 533 octets ;; HEADER SECTION ;; id = 32155 ;; 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": 1220, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; airnow.gov. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (4 records) airnow.gov. 900 IN SOA ( rtpgm.ddi.epa.gov. dnsadmin.epa.gov. 2021129501 ;serial 10800 ;refresh 1080 ;retry 2419200 ;expire 900 ;minimum ) airnow.gov. 900 IN RRSIG ( SOA 8 2 3600 20260926151154 20260922141154 7356 airnow.gov. aEQRCcIutRgVismY6zW2+ceCe6SImIdoJDAL5rIS1vOJZjn4d84xG0ymfxBvRQw4Ce+4S2cdfZyS kKQKQYy767EgrHl5oZsEKxBclSa/7deLVPs6gqv1CxrvzcUjOUYF7nLTUahm0ErT9ahAuuynhgde wl1MDnxNgSTWUibwPwA= ) 6507URM6JUJ26PS34IA837TAG4HAJAIN.airnow.gov. 900 IN NSEC3 ( 1 0 10 d6862a656e 7el12gonsf6u4gl4i8h1l2k89mujbhsb NS SOA TXT RRSIG DNSKEY NSEC3PARAM ) 6507URM6JUJ26PS34IA837TAG4HAJAIN.airnow.gov. 900 IN RRSIG ( NSEC3 8 3 900 20260926035432 20260922033312 7356 airnow.gov. Cuk1gr/iC4U3rsXtCNrfAlKPCOEz0wqrdHtUG0bI/26epr2HHrTZpMTUFXRFldS9fl5h/Q81WOt2 OpoLipEmask6bHXy5qXxWW81qbF6jAItbVDISRemfEtJP0u0+10dVwPdoSy/MfZik4TBeSjiFFXi vbB0syE2JSM/8TMmPu0= ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	nccns2.epa.gov is authoritative for airnow.gov
	Found RRSIG signed by airnow.gov zone
	Query to nccns2.epa.gov for airnow.gov/A
	NSEC3 validation not implemented yet
	Found 1 RRSIGs over SOA RRset
	`airnow.gov. 900 IN RRSIG ( SOA 8 2 3600 20260926151154 20260922141154 7356 airnow.gov. aEQRCcIutRgVismY6zW2+ceCe6SImIdoJDAL5rIS1vOJZjn4d84xG0ymfxBvRQw4Ce+4S2cdfZyS kKQKQYy767EgrHl5oZsEKxBclSa/7deLVPs6gqv1CxrvzcUjOUYF7nLTUahm0ErT9ahAuuynhgde wl1MDnxNgSTWUibwPwA= )`
	RRSIG=7356 is expired
	None of the 1 RRSIG and 3 DNSKEY records validate the SOA RRset

Move your mouse over any or symbols for remediation hints.

Want a second opinion? Test airnow.gov at dnsviz.net.

DNSSEC Debugger

↓ Advanced options ↑ Advanced options

Trust Anchor:
Name Servers: