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DNSViz: A DNS visualization tool

umich.edu

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

RRset statusRRset status

Insecure (6)
  • umich.edu/A
  • umich.edu/AAAA
  • umich.edu/MX
  • umich.edu/NS
  • umich.edu/SOA
  • umich.edu/TXT
Secure (2)
  • edu/SOA
  • edu/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Insecure (2)
  • umich.edu/DNSKEY (alg 13, id 16501)
  • umich.edu/DNSKEY (alg 13, id 37203)
Secure (6)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 46780)
  • NSEC3 proving non-existence of umich.edu/DS
  • edu/DNSKEY (alg 13, id 35663)
  • edu/DNSKEY (alg 13, id 7003)
  • edu/DS (alg 13, id 35663)

Delegation statusDelegation status

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

NoticesNotices

Warnings (7)
  • edu to umich.edu: The following NS name(s) were found in the authoritative NS RRset, but not in the delegation NS RRset (i.e., in the edu zone): umich-edu.dns.umich.com, umich-edu.dns.umich.org, umich-edu.dns.umich.net See RFC 1034, Sec. 4.2.2.
  • edu to umich.edu: The following NS name(s) were found in the delegation NS RRset (i.e., in the edu zone), but not in the authoritative NS RRset: cffw1.dns.umich.com, dns1.itd.umich.edu, dns2.itd.umich.edu, cffw2.dns.umich.net See RFC 1034, Sec. 4.2.2.
  • umich.edu/DNSKEY (alg 13, id 16501): No response was received from the server over UDP (tried 7 times) until the NSID EDNS option was removed (however, this server appeared to respond legitimately to other queries with the NSID EDNS option present). See RFC 6891, Sec. 6.1.2. (192.12.80.214, 192.12.80.222, UDP_-_EDNS0_4096_D_KN)
  • umich.edu/DNSKEY (alg 13, id 37203): No response was received from the server over UDP (tried 7 times) until the NSID EDNS option was removed (however, this server appeared to respond legitimately to other queries with the NSID EDNS option present). See RFC 6891, Sec. 6.1.2. (192.12.80.214, 192.12.80.222, UDP_-_EDNS0_4096_D_KN)
  • umich.edu/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
  • umich.edu/NSEC3PARAM has warnings; select the "Denial of existence" DNSSEC option to see them.
  • umich.edu/DNSKEY 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