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DNSViz: A DNS visualization tool

iastate.edu

Updated: 2020-06-26 15:22:50 UTC (40 days ago) Update now
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DNSSEC options (hide)
  1. |?|
  2. |?|
  3. |?|
  4. |?|
  5. |?|
  6. |?|
  7. |?|
Notices
DNSSEC Authentication Chain

RRset statusRRset status

Secure (6)
  • iastate.edu/A
  • iastate.edu/AAAA
  • iastate.edu/MX
  • iastate.edu/NS
  • iastate.edu/SOA
  • iastate.edu/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (12)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 46594)
  • ./DNSKEY (alg 8, id 48903)
  • edu/DNSKEY (alg 8, id 28065)
  • edu/DNSKEY (alg 8, id 8663)
  • edu/DS (alg 8, id 28065)
  • iastate.edu/DNSKEY (alg 7, id 39944)
  • iastate.edu/DNSKEY (alg 7, id 44060)
  • iastate.edu/DNSKEY (alg 7, id 46875)
  • iastate.edu/DNSKEY (alg 7, id 54696)
  • iastate.edu/DS (alg 7, id 46875)
  • iastate.edu/DS (alg 7, id 54696)

Delegation statusDelegation status

Secure (2)
  • . to edu
  • edu to iastate.edu

NoticesNotices

Errors (8)
  • ./DNSKEY: No response was received from the server over UDP (tried 4 times). (192.112.36.4, UDP_-_EDNS0_512_D_K)
  • edu zone: The server(s) were not responsive to queries over UDP. (2001:502:1ca1::30, 2001:503:d414::30, 2001:503:eea3::30)
  • iastate.edu/DNSKEY: No response was received from the server over UDP (tried 12 times). (2610:130:101:112::2, UDP_-_EDNS0_4096_D)
  • iastate.edu/DNSKEY: No response was received from the server over UDP (tried 4 times). (2610:130:101:112::2, UDP_-_EDNS0_512_D_K)
  • iastate.edu/MX: No response was received from the server over UDP (tried 4 times). (2610:130:101:112::2, UDP_-_EDNS0_512_D_K)
  • iastate.edu/SOA: DNSSEC was effectively downgraded because no response was received from the server over UDP (tried 10 times) with the DO bit set. (2610:130:102:112::2, UDP_-_EDNS0_4096_)
  • iastate.edu/SOA: No response was received from the server over UDP (tried 10 times) until the DO EDNS flag was cleared (however, this server appeared to respond legitimately to other queries with the DO EDNS flag set). (2610:130:102:112::2, UDP_-_EDNS0_4096_D_K)
  • iastate.edu/SOA: The DNSSEC records necessary to validate the response could not be retrieved from the server. (2610:130:102:112::2, UDP_-_EDNS0_4096_D_K)
Warnings (7)
  • iastate.edu/AAAA: 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). (2610:130:102:112::2, UDP_-_EDNS0_4096_D_K)
  • iastate.edu/AAAA: 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. (2610:130:101:112::2, UDP_-_EDNS0_4096_D_K)
  • iastate.edu/DNSKEY (alg 7, id 39944): 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. (2610:130:102:112::2, UDP_-_EDNS0_4096_D_K)
  • iastate.edu/DNSKEY (alg 7, id 44060): 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. (2610:130:102:112::2, UDP_-_EDNS0_4096_D_K)
  • iastate.edu/DNSKEY (alg 7, id 46875): 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. (2610:130:102:112::2, UDP_-_EDNS0_4096_D_K)
  • iastate.edu/DNSKEY (alg 7, id 54696): 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. (2610:130:102:112::2, UDP_-_EDNS0_4096_D_K)
  • iastate.edu/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. (2610:130:101:112::2, UDP_-_EDNS0_4096_D_K)

DNSKEY legend

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