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DNSViz: A DNS visualization tool

fanniemae.com

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

RRset statusRRset status

Insecure (5)
  • fanniemae.com/A
  • fanniemae.com/MX
  • fanniemae.com/NS
  • fanniemae.com/SOA
  • fanniemae.com/TXT
Secure (4)
  • com/SOA
  • com/SOA
  • com/SOA
  • com/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (6)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 46594)
  • NSEC3 proving non-existence of fanniemae.com/DS
  • com/DNSKEY (alg 8, id 24966)
  • com/DNSKEY (alg 8, id 30909)
  • com/DS (alg 8, id 30909)

Delegation statusDelegation status

Insecure (1)
  • com to fanniemae.com
Secure (1)
  • . to com

NoticesNotices

Errors (7)
  • com/DS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (192.112.36.4, UDP_-_NOEDNS_)
  • fanniemae.com zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (198.204.142.65)
  • fanniemae.com/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (198.204.142.65, UDP_-_NOEDNS_)
  • fanniemae.com/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (198.204.134.65, UDP_-_EDNS0_512_D_K)
  • fanniemae.com/MX: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (198.204.134.65, UDP_-_EDNS0_512_D_K)
  • fanniemae.com/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (198.204.142.65, UDP_-_NOEDNS_)
  • fanniemae.com/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (4)
  • fanniemae.com/NS: 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. See RFC 6891, Sec. 6.2.6. (198.204.134.65, UDP_-_EDNS0_4096_D_K)
  • fanniemae.com/TXT: 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). See RFC 6891, Sec. 6.1.2. (198.204.134.65, UDP_-_EDNS0_4096_D_K)
  • rkgf1v7scb.fanniemae.com/A has warnings; select the "Denial of existence" DNSSEC option to see them.
  • fanniemae.com/CNAME 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