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DNSViz: A DNS visualization tool

dow.com

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

RRset statusRRset status

Secure (2)
  • com/SOA
  • com/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (6)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 60955)
  • NSEC3 proving non-existence of dow.com/DS
  • com/DNSKEY (alg 8, id 30909)
  • com/DNSKEY (alg 8, id 46551)
  • com/DS (alg 8, id 30909)

Delegation statusDelegation status

Lame (1)
  • com to dow.com
Secure (1)
  • . to com

NoticesNotices

Errors (4)
  • dow.com zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (204.136.182.42, 204.136.241.42, 216.99.64.42)
  • dow.com zone: There was an error resolving the following NS name(s) to address(es): mantdnsi1.dow.com, tnntdnsi1.dow.com, txntdnsi1.dow.com
  • dow.com/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (204.136.182.42, 204.136.241.42, 216.99.64.42, UDP_-_NOEDNS_)
  • dow.com/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (204.136.182.42, 204.136.241.42, 216.99.64.42, UDP_-_NOEDNS_)

DNSKEY legend

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