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DNSViz: A DNS visualization tool

facebook.com

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

RRset statusRRset status

Insecure (14)
  • facebook.com/A
  • facebook.com/A
  • facebook.com/A
  • facebook.com/A
  • facebook.com/A
  • facebook.com/AAAA
  • facebook.com/AAAA
  • facebook.com/AAAA
  • facebook.com/AAAA
  • facebook.com/AAAA
  • facebook.com/MX
  • facebook.com/NS
  • facebook.com/SOA
  • facebook.com/TXT
Secure (2)
  • com/SOA
  • com/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (7)
  • ./DNSKEY (alg 8, id 18733)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 951)
  • NSEC3 proving non-existence of facebook.com/DS
  • com/DNSKEY (alg 8, id 30909)
  • com/DNSKEY (alg 8, id 53929)
  • com/DS (alg 8, id 30909)

Delegation statusDelegation status

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

NoticesNotices

Warnings (2)
  • com/DS (alg 8, id 30909): 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. (192.228.79.201, 199.9.14.201, UDP_-_EDNS0_4096_D_KN)
  • com/DS (alg 8, id 30909): 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. (192.228.79.201, 199.9.14.201, UDP_-_EDNS0_4096_D_KN)

DNSKEY legend

Full legend
SEP bit setSEP bit set
Revoke bit setRevoke bit set
Trust anchorTrust anchor
Download: png | svg
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DNSSEC authentication graph