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DNSViz: A DNS visualization tool

dol.gov

DNSSEC options (hide)
  1. |?|
  2. |?|
  3. |?|
  4. |?|
  5. |?|
  6. |?|
  7. |?|
  8. |?|
  9. |?|
  10. |?|
Notices
DNSSEC Authentication Chain

RRset statusRRset status

Secure (6)
  • dol.gov/A
  • dol.gov/MX
  • dol.gov/NS
  • dol.gov/SOA
  • dol.gov/SOA
  • dol.gov/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (12)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 26116)
  • ./DNSKEY (alg 8, id 46594)
  • dol.gov/DNSKEY (alg 8, id 17911)
  • dol.gov/DNSKEY (alg 8, id 44511)
  • dol.gov/DNSKEY (alg 8, id 61755)
  • dol.gov/DS (alg 8, id 17911)
  • dol.gov/DS (alg 8, id 17911)
  • gov/DNSKEY (alg 8, id 26665)
  • gov/DNSKEY (alg 8, id 7698)
  • gov/DS (alg 8, id 7698)
  • gov/DS (alg 8, id 7698)

Delegation statusDelegation status

Secure (2)
  • . to gov
  • gov to dol.gov

NoticesNotices

Errors (15)
  • dol.gov zone: The server(s) responded over TCP with a malformed response or with an invalid RCODE. See RFC 1035, Sec. 4.1.1. (2607:f250:d008:2022:65:106:133:212)
  • dol.gov zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2607:f250:d024:3001:152:180:20:20)
  • dol.gov/A: There was an error communicating with the server over UDP (EACCES). See RFC 1035, Sec. 4.2. (2607:f250:d024:3001:152:180:20:20, UDP_-_EDNS0_4096_D_K)
  • dol.gov/DNSKEY: No response was received from the server over UDP (tried 11 times). See RFC 1035, Sec. 4.2. (2607:f250:d008:2022:65:106:133:211, UDP_-_EDNS0_4096_D_K)
  • dol.gov/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (2607:f250:d008:2022:65:106:133:212, UDP_-_EDNS0_512_D_K)
  • dol.gov/DNSKEY: No response was received from the server over UDP (tried 7 times). See RFC 1035, Sec. 4.2. (2607:f250:d008:2022:65:106:133:212, UDP_-_EDNS0_4096_D)
  • dol.gov/MX: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (2607:f250:d008:2022:65:106:133:211, UDP_-_EDNS0_512_D_K)
  • dol.gov/MX: No response was received from the server over UDP (tried 7 times). See RFC 1035, Sec. 4.2. (2607:f250:d008:2022:65:106:133:212, UDP_-_EDNS0_4096_D)
  • dol.gov/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2607:f250:d008:2022:65:106:133:211, UDP_-_NOEDNS_)
  • dol.gov/NS: There was an error communicating with the server over UDP (EACCES). See RFC 1035, Sec. 4.2. (2607:f250:d024:3001:152:180:20:20, UDP_-_EDNS0_4096_D_K)
  • dol.gov/SOA: No response was received from the server over TCP (tried 3 times). See RFC 1035, Sec. 4.2. (2607:f250:d008:2022:65:106:133:212, TCP_-_EDNS0_4096_D)
  • dol.gov/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
  • j4ph9wmz0c.dol.gov/A has errors; select the "Denial of existence" DNSSEC option to see them.
  • dol.gov/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
  • dol.gov/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (21)
  • dol.gov/A: No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. See RFC 6891, Sec. 6.2.6. (2607:f250:d020:3001:152:180:11:239, UDP_-_EDNS0_4096_D_K)
  • dol.gov/DS (alg 8, id 17911): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • dol.gov/DS (alg 8, id 17911): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • dol.gov/DS (alg 8, id 17911): DS records with digest type 1 (SHA-1) are ignored when DS records with digest type 2 (SHA-256) exist in the same RRset. See RFC 4509, Sec. 3.
  • dol.gov/DS (alg 8, id 17911): DS records with digest type 1 (SHA-1) are ignored when DS records with digest type 2 (SHA-256) exist in the same RRset. See RFC 4509, Sec. 3.
  • dol.gov/MX: No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. See RFC 6891, Sec. 6.2.6. (2607:f250:d020:3001:152:180:11:239, UDP_-_EDNS0_4096_D_K)
  • dol.gov/NS: No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. See RFC 6891, Sec. 6.2.6. (2607:f250:d020:3001:152:180:11:239, UDP_-_EDNS0_4096_D_K)
  • dol.gov/SOA: No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. See RFC 6891, Sec. 6.2.6. (2607:f250:d008:2022:65:106:133:212, 2607:f250:d020:3001:152:180:11:239, UDP_-_EDNS0_4096_D_K, UDP_-_EDNS0_4096_D_K_0x20)
  • dol.gov/TXT: No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. See RFC 6891, Sec. 6.2.6. (2607:f250:d020:3001:152:180:11:239, UDP_-_EDNS0_4096_D_K)
  • gov to dol.gov: Authoritative AAAA records exist for ns05.dol.gov, but there are no corresponding AAAA glue records. See RFC 1034, Sec. 4.2.2.
  • gov to dol.gov: Authoritative AAAA records exist for ns06.dol.gov, but there are no corresponding AAAA glue records. See RFC 1034, Sec. 4.2.2.
  • gov to dol.gov: Authoritative AAAA records exist for ns1.dol.gov, but there are no corresponding AAAA glue records. See RFC 1034, Sec. 4.2.2.
  • gov to dol.gov: Authoritative AAAA records exist for ns2.dol.gov, but there are no corresponding AAAA glue records. See RFC 1034, Sec. 4.2.2.
  • gov to dol.gov: Authoritative AAAA records exist for stlns08.dol.gov, but there are no corresponding AAAA glue records. See RFC 1034, Sec. 4.2.2.
  • gov/DS (alg 8, id 7698): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • gov/DS (alg 8, id 7698): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • gov/DS (alg 8, id 7698): DS records with digest type 1 (SHA-1) are ignored when DS records with digest type 2 (SHA-256) exist in the same RRset. See RFC 4509, Sec. 3.
  • gov/DS (alg 8, id 7698): DS records with digest type 1 (SHA-1) are ignored when DS records with digest type 2 (SHA-256) exist in the same RRset. See RFC 4509, Sec. 3.
  • j4ph9wmz0c.dol.gov/A has warnings; select the "Denial of existence" DNSSEC option to see them.
  • dol.gov/AAAA has warnings; select the "Denial of existence" DNSSEC option to see them.
  • dol.gov/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.

DNSKEY legend

Full legend
SEP bit setSEP bit set
Revoke bit setRevoke bit set
Trust anchorTrust anchor
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DNSSEC authentication graph