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DNSViz: A DNS visualization tool

cmc.com

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DNSSEC options (hide)
  1. |?|
  2. |?|
  3. |?|
  4. |?|
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Notices
DNSSEC Authentication Chain

RRset statusRRset status

Insecure (5)
  • cmc.com/A
  • cmc.com/MX
  • cmc.com/NS
  • cmc.com/SOA
  • cmc.com/TXT
Secure (2)
  • com/SOA
  • com/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (7)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 42351)
  • NSEC3 proving non-existence of cmc.com/DS
  • com/DNSKEY (alg 8, id 30909)
  • com/DNSKEY (alg 8, id 31510)
  • com/DNSKEY (alg 8, id 58540)
  • com/DS (alg 8, id 30909)

Delegation statusDelegation status

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

NoticesNotices

Errors (1)
  • ./DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (2001:500:12::d0d, UDP_-_EDNS0_512_D_KN)
Warnings (2)
  • ./DNSKEY (alg 8, id 20326): 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. (2001:500:12::d0d, UDP_-_EDNS0_4096_D_KN)
  • ./DNSKEY (alg 8, id 42351): 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. (2001:500:12::d0d, UDP_-_EDNS0_4096_D_KN)

DNSKEY legend

Full legend
SEP bit setSEP bit set
Revoke bit setRevoke bit set
Trust anchorTrust anchor
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DNSSEC authentication graph