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DNSViz: A DNS visualization tool

ucd.ie

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

RRset statusRRset status

Insecure (4)
  • ucd.ie/MX
  • ucd.ie/NS
  • ucd.ie/SOA
  • ucd.ie/TXT
Secure (1)
  • ie/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (8)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 26116)
  • NSEC3 proving non-existence of ucd.ie/DS
  • ie/DNSKEY (alg 13, id 10580)
  • ie/DNSKEY (alg 13, id 15040)
  • ie/DNSKEY (alg 8, id 16976)
  • ie/DNSKEY (alg 8, id 31860)
  • ie/DS (alg 13, id 15040)

Delegation statusDelegation status

Insecure (1)
  • ie to ucd.ie
Secure (1)
  • . to ie

NoticesNotices

Errors (17)
  • NSEC3 proving non-existence of ucd.ie/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
  • NSEC3 proving non-existence of ucd.ie/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
  • ucd.ie zone: The following NS name(s) did not resolve to address(es): uucp-gw-1.pa.dec.com, uucp-gw-2.pa.dec.com
  • ucd.ie zone: The server(s) responded over TCP with a malformed response or with an invalid RCODE. See RFC 1035, Sec. 4.1.1. (130.59.31.26, 134.226.14.15, 137.43.132.53, 2001:620:0:ff::a7, 2001:770:98:200::35:1)
  • ucd.ie zone: The server(s) responded over UDP with a malformed response or with an invalid RCODE. See RFC 1035, Sec. 4.1.1. (130.59.31.26, 134.226.14.15, 137.43.132.53, 2001:620:0:ff::a7, 2001:770:98:200::35:1)
  • ucd.ie/DNSKEY: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (130.59.31.26, 134.226.14.15, 137.43.132.53, 2001:620:0:ff::a7, 2001:770:98:200::35:1, UDP_-_EDNS0_512_D_K, UDP_-_NOEDNS_)
  • ucd.ie/MX: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (130.59.31.26, 134.226.14.15, 137.43.132.53, 2001:620:0:ff::a7, 2001:770:98:200::35:1, UDP_-_EDNS0_512_D_K, UDP_-_NOEDNS_)
  • ucd.ie/NS: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (130.59.31.26, 134.226.14.15, 137.43.132.53, 2001:620:0:ff::a7, 2001:770:98:200::35:1, UDP_-_NOEDNS_)
  • ucd.ie/SOA: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (130.59.31.26, 134.226.14.15, 137.43.132.53, 2001:620:0:ff::a7, 2001:770:98:200::35:1, TCP_-_NOEDNS_)
  • ucd.ie/SOA: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (130.59.31.26, 134.226.14.15, 137.43.132.53, 2001:620:0:ff::a7, 2001:770:98:200::35:1, UDP_-_NOEDNS_, UDP_-_NOEDNS__0x20)
  • ucd.ie/TXT: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (130.59.31.26, 134.226.14.15, 137.43.132.53, 2001:620:0:ff::a7, 2001:770:98:200::35:1, UDP_-_NOEDNS_)
  • ucd.ie/A has errors; select the "Denial of existence" DNSSEC option to see them.
  • iu9c825bs0.ucd.ie/A has errors; select the "Denial of existence" DNSSEC option to see them.
  • ucd.ie/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
  • ucd.ie/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • ucd.ie/DS has errors; select the "Denial of existence" DNSSEC option to see them.
  • ucd.ie/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (3)
  • NSEC3 proving non-existence of ucd.ie/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • NSEC3 proving non-existence of ucd.ie/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • ucd.ie/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