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DNSViz: A DNS visualization tool

harvard.edu

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

RRset statusRRset status

Insecure (7)
  • harvard.edu/A
  • harvard.edu/AAAA
  • harvard.edu/MX
  • harvard.edu/NS
  • harvard.edu/NSEC3PARAM
  • harvard.edu/SOA
  • harvard.edu/TXT
Secure (2)
  • edu/SOA
  • edu/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Insecure (4)
  • harvard.edu/DNSKEY (alg 13, id 11718)
  • harvard.edu/DNSKEY (alg 13, id 32159)
  • harvard.edu/DNSKEY (alg 13, id 38415)
  • harvard.edu/DNSKEY (alg 13, id 9215)
Secure (6)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 30903)
  • NSEC3 proving non-existence of harvard.edu/DS
  • edu/DNSKEY (alg 13, id 30678)
  • edu/DNSKEY (alg 13, id 35663)
  • edu/DS (alg 13, id 35663)

Delegation statusDelegation status

Insecure (1)
  • edu to harvard.edu
Secure (1)
  • . to edu

NoticesNotices

Errors (5)
  • harvard.edu zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2600:1406:32::41)
  • harvard.edu/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2600:1406:32::41, UDP_-_NOEDNS_)
  • harvard.edu/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2600:1406:32::41, UDP_-_NOEDNS_)
  • harvard.edu/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • xhe85jatid.harvard.edu/A has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (2)
  • harvard.edu/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
  • xhe85jatid.harvard.edu/A 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