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DNSViz: A DNS visualization tool

ahrq.gov

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

RRset statusRRset status

Secure (5)
  • ahrq.gov/A
  • ahrq.gov/MX
  • ahrq.gov/NS
  • ahrq.gov/SOA
  • ahrq.gov/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (12)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 951)
  • ahrq.gov/DNSKEY (alg 8, id 2695)
  • ahrq.gov/DNSKEY (alg 8, id 49780)
  • ahrq.gov/DNSKEY (alg 8, id 5699)
  • ahrq.gov/DNSKEY (alg 8, id 6943)
  • ahrq.gov/DS (alg 8, id 49780)
  • ahrq.gov/DS (alg 8, id 5699)
  • gov/DNSKEY (alg 8, id 24250)
  • gov/DNSKEY (alg 8, id 56278)
  • gov/DNSKEY (alg 8, id 7698)
  • gov/DS (alg 8, id 7698)

Delegation statusDelegation status

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

NoticesNotices

Errors (2)
  • ahrq.gov/MX: No response was received from the server over UDP (tried 4 times). (158.74.30.99, UDP_-_EDNS0_512_D_KN)
  • ahrq.gov/SOA: No response was received from the server over TCP (tried 3 times). (158.74.30.99, TCP_-_EDNS0_4096_D_N)
Warnings (4)
  • ahrq.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. (158.74.30.102, 158.74.30.103, UDP_-_EDNS0_4096_D_KN)
  • ahrq.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. (158.74.30.99, UDP_-_EDNS0_4096_D_KN)
  • ahrq.gov/SOA: No response was received from the server over UDP (tried 6 times) until the COOKIE EDNS option was removed (however, this server appeared to respond legitimately to other queries with the COOKIE EDNS option present). (158.74.30.102, UDP_-_EDNS0_4096_D_KN)
  • ahrq.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. (158.74.30.99, 158.74.30.102, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_4096_D_KN_0x20)

DNSKEY legend

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