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DNSViz: A DNS visualization tool

udel.edu

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

RRset statusRRset status

Insecure (5)
  • udel.edu/A
  • udel.edu/MX
  • udel.edu/NS
  • udel.edu/SOA
  • udel.edu/TXT
Secure (2)
  • edu/SOA
  • edu/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (7)
  • ./DNSKEY (alg 8, id 18733)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 20826)
  • NSEC3 proving non-existence of udel.edu/DS
  • edu/DNSKEY (alg 8, id 18290)
  • edu/DNSKEY (alg 8, id 28065)
  • edu/DS (alg 8, id 28065)

Delegation statusDelegation status

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

NoticesNotices

Errors (5)
  • udel.edu/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (128.175.13.17, UDP_-_EDNS0_512_D_KN)
  • udel.edu/MX: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (128.175.13.16, 128.175.13.17, UDP_-_EDNS0_512_D_KN)
  • udel.edu/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (128.175.13.17, UDP_-_NOEDNS_)
  • udel.edu/SOA: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (128.175.13.16, 128.175.13.17, UDP_-_NOEDNS_)
  • udel.edu/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (7)
  • udel.edu/A: 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). See RFC 6891, Sec. 6.1.4. (128.175.13.17, UDP_-_EDNS0_4096_D_KN)
  • udel.edu/A: No response was received from the server over UDP (tried 11 times) until EDNS was disabled (however, this server appeared to respond legitimately to other queries with EDNS enabled). See RFC 6891, Sec. 6.2.6. (128.175.13.16, UDP_-_EDNS0_4096_D_KN)
  • udel.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). See RFC 6891, Sec. 6.1.4. (128.175.13.16, UDP_-_EDNS0_4096_D_KN)
  • udel.edu/SOA: 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. (128.175.13.17, UDP_-_EDNS0_4096_D_KN_0x20)
  • udel.edu/NSEC3PARAM has warnings; select the "Denial of existence" DNSSEC option to see them.
  • dzwuyhx4g6.udel.edu/A has warnings; select the "Denial of existence" DNSSEC option to see them.
  • udel.edu/AAAA 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