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DNSViz: A DNS visualization tool

fpki.gov

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

RRset statusRRset status

Bogus (1)
  • fpki.gov/NS
Secure (3)
  • fpki.gov/NSEC3PARAM
  • fpki.gov/SOA
  • fpki.gov/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (9)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 47671)
  • ./DNSKEY (alg 8, id 9799)
  • fpki.gov/DNSKEY (alg 8, id 43131)
  • fpki.gov/DNSKEY (alg 8, id 60922)
  • fpki.gov/DS (alg 8, id 60922)
  • gov/DNSKEY (alg 8, id 7030)
  • gov/DNSKEY (alg 8, id 7698)
  • gov/DS (alg 8, id 7698)

Delegation statusDelegation status

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

NoticesNotices

Errors (18)
  • fpki.gov zone: The server(s) responded over TCP with a malformed response or with an invalid RCODE. (199.167.92.100)
  • fpki.gov zone: The server(s) responded over UDP with a malformed response or with an invalid RCODE. (199.167.92.100)
  • fpki.gov zone: The server(s) were not responsive to queries over UDP. (2620:9b:c001:9300:22::30)
  • fpki.gov zone: There was an error resolving the following NS name(s) to address(es): dns1.fpki.gov
  • fpki.gov/A: No response was received from the server over UDP (tried 12 times). (2620:9b:c001:9300:22::30, UDP_-_NOEDNS_)
  • fpki.gov/A: The response had an invalid RCODE (SERVFAIL). (199.167.92.100, 199.167.93.100, UDP_-_NOEDNS_)
  • fpki.gov/DNSKEY: The response had an invalid RCODE (SERVFAIL). (199.167.92.100, UDP_-_EDNS0_512_D_KN, UDP_-_NOEDNS_)
  • fpki.gov/NS: DNSSEC was effectively downgraded because the response had an invalid RCODE (SERVFAIL) with EDNS enabled. (199.167.93.100, UDP_-_NOEDNS_)
  • fpki.gov/NS: No response was received from the server over UDP (tried 12 times). (2620:9b:c001:9300:22::30, UDP_-_NOEDNS_)
  • fpki.gov/NS: The DNSSEC records necessary to validate the response could not be retrieved from the server. (199.167.93.100, UDP_-_EDNS0_4096_D_KN)
  • fpki.gov/NS: The response had an invalid RCODE (SERVFAIL) until EDNS was disabled (however, this server appeared to respond legitimately to other queries with EDNS enabled). (199.167.93.100, UDP_-_EDNS0_4096_D_KN)
  • fpki.gov/NS: The response had an invalid RCODE (SERVFAIL). (199.167.92.100, UDP_-_NOEDNS_)
  • fpki.gov/NSEC3PARAM: The response had an invalid RCODE (SERVFAIL). (199.167.92.100, UDP_-_NOEDNS_)
  • fpki.gov/SOA: DNSSEC was effectively downgraded because the response had an invalid RCODE (SERVFAIL) with EDNS enabled. (199.167.93.100, TCP_-_NOEDNS_)
  • fpki.gov/SOA: The response had an invalid RCODE (SERVFAIL) until EDNS was disabled. (199.167.93.100, TCP_-_EDNS0_4096_D_N)
  • fpki.gov/SOA: The response had an invalid RCODE (SERVFAIL). (199.167.92.100, TCP_-_NOEDNS_)
  • fpki.gov/SOA: The response had an invalid RCODE (SERVFAIL). (199.167.92.100, UDP_-_NOEDNS_, UDP_-_NOEDNS__0x20)
  • fpki.gov/TXT: The response had an invalid RCODE (SERVFAIL). (199.167.92.100, UDP_-_NOEDNS_)
Warnings (3)
  • RRSIG fpki.gov/NSEC3PARAM alg 8, id 43131: The value of the Signature Inception field of the RRSIG RR (2022-03-28 21:24:56+00:00) is within possible clock skew range (2 seconds) of the current time (2022-03-28 21:24:58+00:00).
  • gov to fpki.gov: A glue records exist for dns2.fpki.gov, but there are no corresponding authoritative A records.
  • gov to fpki.gov: Authoritative AAAA records exist for dns2.fpki.gov, but there are no corresponding AAAA glue records.

DNSKEY legend

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