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DNSViz: A DNS visualization tool

duckdns.org

DNSSEC options (hide)
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Notices
DNSSEC Authentication Chain

RRset statusRRset status

Insecure (5)
  • duckdns.org/A
  • duckdns.org/A
  • duckdns.org/NS
  • duckdns.org/SOA
  • duckdns.org/TXT
Secure (1)
  • org/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (7)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 5613)
  • NSEC3 proving non-existence of duckdns.org/DS
  • org/DNSKEY (alg 8, id 26974)
  • org/DNSKEY (alg 8, id 36783)
  • org/DNSKEY (alg 8, id 55149)
  • org/DS (alg 8, id 26974)

Delegation statusDelegation status

Insecure (1)
  • org to duckdns.org
Secure (1)
  • . to org

NoticesNotices

Errors (24)
  • duckdns.org zone: The server(s) were not responsive to queries over TCP. See RFC 1035, Sec. 4.2. (3.97.51.116, 3.97.58.28, 15.222.19.97, 15.223.21.81, 15.223.106.16, 35.182.183.211)
  • duckdns.org zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (35.183.157.249, 99.79.16.64, 99.79.143.35)
  • duckdns.org/A: No response was received from the server over UDP (tried 11 times). See RFC 1035, Sec. 4.2. (99.79.16.64, UDP_-_EDNS0_4096_D_KN)
  • duckdns.org/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (3.97.51.116, 15.223.106.16, 35.182.183.211, 35.183.157.249, 99.79.143.35, UDP_-_NOEDNS_)
  • duckdns.org/DNSKEY: No response was received from the server over TCP (tried 7 times). See RFC 1035, Sec. 4.2. (3.97.51.116, 15.223.21.81, TCP_-_EDNS0_4096_D_N)
  • duckdns.org/DNSKEY: No response was received from the server over TCP (tried 9 times). See RFC 1035, Sec. 4.2. (15.222.19.97, TCP_-_EDNS0_4096_D_KN)
  • duckdns.org/DNSKEY: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (3.97.58.28, 15.223.106.16, UDP_-_NOEDNS_)
  • duckdns.org/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (3.97.51.116, 15.222.19.97, 15.223.21.81, 35.182.183.211, UDP_-_EDNS0_512_D_KN)
  • duckdns.org/MX: No response was received from the server over TCP (tried 4 times). See RFC 1035, Sec. 4.2. (35.182.183.211, TCP_-_EDNS0_4096_)
  • duckdns.org/MX: No response was received from the server over TCP (tried 9 times). See RFC 1035, Sec. 4.2. (3.97.51.116, 15.223.21.81, TCP_-_EDNS0_4096_D_KN)
  • duckdns.org/MX: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (3.97.58.28, 15.222.19.97, 15.223.106.16, UDP_-_NOEDNS_)
  • duckdns.org/MX: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (3.97.51.116, 3.97.58.28, 15.222.19.97, 15.223.21.81, 15.223.106.16, 35.182.183.211, UDP_-_EDNS0_512_D_KN)
  • duckdns.org/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (35.183.157.249, 99.79.143.35, UDP_-_EDNS0_4096_D, UDP_-_NOEDNS_)
  • duckdns.org/NS: No response was received from the server over UDP (tried 14 times). See RFC 1035, Sec. 4.2. (99.79.16.64, UDP_-_NOEDNS_)
  • duckdns.org/SOA: No response was received from the server over TCP (tried 3 times). See RFC 1035, Sec. 4.2. (3.97.51.116, 3.97.58.28, 15.222.19.97, 15.223.21.81, 15.223.106.16, 35.182.183.211, TCP_-_EDNS0_4096_D_N)
  • duckdns.org/SOA: No response was received from the server over UDP (tried 10 times). See RFC 1035, Sec. 4.2. (3.97.51.116, 15.222.19.97, 15.223.21.81, 15.223.106.16, 35.182.183.211, UDP_-_EDNS0_4096_D, UDP_-_EDNS0_4096_D_0x20)
  • duckdns.org/TXT: No response was received from the server over UDP (tried 10 times). See RFC 1035, Sec. 4.2. (3.97.58.28, 15.222.19.97, 15.223.106.16, UDP_-_EDNS0_4096_D)
  • 8zd7j.i2kvr.duckdns.org/A has errors; select the "Denial of existence" DNSSEC option to see them.
  • duckdns.org/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
  • duckdns.org/CDNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
  • duckdns.org/NSEC3PARAM has errors; select the "Denial of existence" DNSSEC option to see them.
  • duckdns.org/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • duckdns.org/CDS has errors; select the "Denial of existence" DNSSEC option to see them.
  • duckdns.org/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (11)
  • NSEC3 proving non-existence of duckdns.org/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • NSEC3 proving non-existence of duckdns.org/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • duckdns.org/NS: No response was received from the server over UDP (tried 7 times) until the NSID EDNS option was removed (however, this server appeared to respond legitimately to other queries with the NSID EDNS option present). See RFC 6891, Sec. 6.1.2. (3.97.51.116, UDP_-_EDNS0_4096_D_KN)
  • duckdns.org/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. (3.97.58.28, 15.222.19.97, UDP_-_EDNS0_4096_D_KN)
  • duckdns.org/SOA: No response was received from the server over UDP (tried 7 times) until the NSID EDNS option was removed (however, this server appeared to respond legitimately to other queries with the NSID EDNS option present). See RFC 6891, Sec. 6.1.2. (3.97.51.116, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_4096_D_KN_0x20)
  • duckdns.org/SOA: 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. (15.223.21.81, UDP_-_EDNS0_4096_D_KN_0x20)
  • duckdns.org/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. (15.223.21.81, UDP_-_EDNS0_4096_D_KN)
  • duckdns.org/TXT: No response was received from the server over UDP (tried 7 times) until the NSID EDNS option was removed (however, this server appeared to respond legitimately to other queries with the NSID EDNS option present). See RFC 6891, Sec. 6.1.2. (3.97.51.116, UDP_-_EDNS0_4096_D_KN)
  • duckdns.org/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
  • duckdns.org/AAAA has warnings; select the "Denial of existence" DNSSEC option to see them.
  • duckdns.org/DS 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