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DNSViz: A DNS visualization tool

ehr.gov

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

RRset statusRRset status

Insecure (3)
  • ehr.gov/NS
  • ehr.gov/SOA
  • ehr.gov/TXT
Secure (1)
  • gov/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (6)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 60955)
  • NSEC3 proving non-existence of ehr.gov/DS
  • gov/DNSKEY (alg 8, id 50011)
  • gov/DNSKEY (alg 8, id 7698)
  • gov/DS (alg 8, id 7698)

Delegation statusDelegation status

Insecure (1)
  • gov to ehr.gov
Secure (1)
  • . to gov

NoticesNotices

Errors (6)
  • NSEC3 proving non-existence of ehr.gov/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
  • NSEC3 proving non-existence of ehr.gov/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
  • ehr.gov zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (214.2.252.50, 214.2.252.52, 214.2.253.50, 214.2.253.52)
  • ehr.gov/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (214.2.252.50, 214.2.252.52, 214.2.253.50, 214.2.253.52, UDP_-_NOEDNS_)
  • ehr.gov/A has errors; select the "Denial of existence" DNSSEC option to see them.
  • ehr.gov/DS has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (5)
  • NSEC3 proving non-existence of ehr.gov/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • NSEC3 proving non-existence of ehr.gov/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • gov to ehr.gov: The following NS name(s) were found in the authoritative NS RRset, but not in the delegation NS RRset (i.e., in the gov zone): ns01-cern-auth2.health.mil, ns01-cernls-auth1.health.mil, ns01-cernls-auth2.health.mil, ns01-cern-auth1.health.mil See RFC 1034, Sec. 4.2.2.
  • ehr.gov/NSEC3PARAM has warnings; select the "Denial of existence" DNSSEC option to see them.
  • ehr.gov/DS 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