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DNSViz: A DNS visualization tool

nih.gov

DNSSEC options (hide)
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Notices
DNSSEC Authentication Chain

RRset statusRRset status

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (9)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 30903)
  • ./DNSKEY (alg 8, id 46780)
  • gov/DNSKEY (alg 8, id 10104)
  • gov/DNSKEY (alg 8, id 49735)
  • gov/DNSKEY (alg 8, id 64280)
  • gov/DS (alg 8, id 64280)
  • nih.gov/DS (alg 8, id 32209)
  • nih.gov/DS (alg 8, id 59659)
Non_existent (2)
  • nih.gov/DNSKEY (alg 8, id 32209)
  • nih.gov/DNSKEY (alg 8, id 59659)

Delegation statusDelegation status

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

NoticesNotices

Errors (5)
  • gov to nih.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.
  • nih.gov zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (128.231.64.1, 128.231.128.251, 165.112.4.230)
  • nih.gov zone: There was an error resolving the following NS name(s) to address(es): ns.nih.gov, ns2.nih.gov, ns3.nih.gov
  • nih.gov/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (128.231.64.1, 128.231.128.251, 165.112.4.230, UDP_-_NOEDNS_)
  • nih.gov/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (128.231.64.1, 128.231.128.251, 165.112.4.230, UDP_-_NOEDNS_)

DNSKEY legend

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