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DNSViz: A DNS visualization tool

dell.com

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

RRset statusRRset status

Insecure (4)
  • dell.com/A
  • dell.com/MX
  • dell.com/NS
  • dell.com/SOA
Secure (2)
  • com/SOA
  • com/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (6)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 47671)
  • NSEC3 proving non-existence of dell.com/DS
  • com/DNSKEY (alg 8, id 30909)
  • com/DNSKEY (alg 8, id 37269)
  • com/DS (alg 8, id 30909)

Delegation statusDelegation status

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

NoticesNotices

Errors (16)
  • dell.com zone: The following NS name(s) did not resolve to address(es): ns6.us.dell.com
  • dell.com zone: The server(s) were not responsive to queries over TCP. See RFC 1035, Sec. 4.2. (143.166.82.252, 143.166.83.13, 143.166.224.3, 143.166.224.11, 143.166.224.235)
  • dell.com zone: There was an error resolving the following NS name(s) to address(es): ns2.us.dell.com, ns4.us.dell.com
  • dell.com/DNSKEY: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (143.166.83.13, 143.166.224.3, 143.166.224.11, 143.166.224.235, UDP_-_NOEDNS_)
  • dell.com/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (143.166.224.3, 143.166.224.11, 143.166.224.235, UDP_-_EDNS0_512_D_KN)
  • dell.com/MX: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (143.166.83.13, 143.166.224.3, 143.166.224.11, 143.166.224.235, UDP_-_NOEDNS_)
  • dell.com/MX: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (143.166.224.3, 143.166.224.11, 143.166.224.235, UDP_-_EDNS0_512_D_KN)
  • dell.com/SOA: No response was received from the server over TCP (tried 3 times). See RFC 1035, Sec. 4.2. (143.166.82.252, 143.166.83.13, 143.166.224.3, 143.166.224.11, 143.166.224.235, TCP_-_EDNS0_4096_D_N)
  • dell.com/SOA: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (143.166.224.3, 143.166.224.11, 143.166.224.235, UDP_-_NOEDNS_, UDP_-_NOEDNS__0x20)
  • dell.com/TXT: No response was received from the server over TCP (tried 12 times). See RFC 1035, Sec. 4.2. (143.166.82.251, 143.166.82.252, 143.166.83.13, TCP_-_EDNS0_4096_D_KN)
  • dell.com/TXT: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (143.166.224.3, 143.166.224.11, 143.166.224.235, UDP_-_NOEDNS_)
  • 2pywl6h3zc.dell.com/A has errors; select the "Denial of existence" DNSSEC option to see them.
  • dell.com/NSEC3PARAM has errors; select the "Denial of existence" DNSSEC option to see them.
  • dell.com/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
  • dell.com/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • dell.com/AAAA has errors; 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