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DNSViz: A DNS visualization tool

epa.gov

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

RRset statusRRset status

Bogus (3)
  • epa.gov/MX
  • epa.gov/NS
  • epa.gov/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (6)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 30903)
  • epa.gov/DS (alg 8, id 23626)
  • gov/DNSKEY (alg 8, id 10104)
  • gov/DNSKEY (alg 8, id 64280)
  • gov/DS (alg 8, id 64280)
Non_existent (2)
  • epa.gov/DNSKEY (alg 8, id 23626)
  • epa.gov/DNSKEY (alg 8, id 46683)

Delegation statusDelegation status

Bogus (1)
  • gov to epa.gov
Secure (1)
  • . to gov

NoticesNotices

Errors (13)
  • epa.gov zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2620:117:506f:c::f005, 2620:117:506f:c::f00f, 2620:117:5071:d4::f005, 2620:117:5071:d4::f00f)
  • epa.gov/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (134.67.12.5, 134.67.12.15, 161.80.212.5, 161.80.212.15, 2620:117:506f:c::f005, 2620:117:506f:c::f00f, 2620:117:5071:d4::f005, 2620:117:5071:d4::f00f, UDP_-_NOEDNS_)
  • epa.gov/AAAA: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (134.67.12.5, 134.67.12.15, 161.80.212.5, 161.80.212.15, UDP_-_NOEDNS_)
  • epa.gov/DNSKEY: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (134.67.12.5, 134.67.12.15, 161.80.212.5, 161.80.212.15, UDP_-_NOEDNS_)
  • epa.gov/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (134.67.12.5, 134.67.12.15, 161.80.212.5, 161.80.212.15, UDP_-_EDNS0_512_D_KN)
  • epa.gov/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2620:117:506f:c::f005, 2620:117:506f:c::f00f, 2620:117:5071:d4::f005, 2620:117:5071:d4::f00f, UDP_-_NOEDNS_)
  • epa.gov/NSEC3PARAM: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (134.67.12.5, 134.67.12.15, 161.80.212.5, 161.80.212.15, UDP_-_NOEDNS_)
  • epa.gov/SOA: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (134.67.12.5, 134.67.12.15, 161.80.212.5, 161.80.212.15, UDP_-_NOEDNS_, UDP_-_NOEDNS__0x20)
  • epa.gov/TXT: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (134.67.12.5, 134.67.12.15, 161.80.212.5, 161.80.212.15, UDP_-_NOEDNS_)
  • gov to epa.gov: No valid RRSIGs made by a key corresponding to a DS RR were found covering the DNSKEY RRset, resulting in no secure entry point (SEP) into the zone. See RFC 4035, Sec. 2.2, RFC 6840, Sec. 5.11.
  • epa.gov/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
  • epa.gov/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • eo4nrqg2m9.epa.gov/A has errors; 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