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DNSViz: A DNS visualization tool

tcd.ie

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

RRset statusRRset status

Insecure (5)
  • tcd.ie/A
  • tcd.ie/MX
  • tcd.ie/NS
  • tcd.ie/SOA
  • tcd.ie/TXT
Secure (1)
  • ie/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (7)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 48903)
  • NSEC3 proving non-existence of tcd.ie/DS
  • ie/DNSKEY (alg 8, id 16976)
  • ie/DNSKEY (alg 8, id 42130)
  • ie/DNSKEY (alg 8, id 42361)
  • ie/DS (alg 8, id 16976)

Delegation statusDelegation status

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

NoticesNotices

Errors (3)
  • NSEC3 proving non-existence of tcd.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 tcd.ie/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
  • tcd.ie/DS has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (3)
  • NSEC3 proving non-existence of tcd.ie/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • NSEC3 proving non-existence of tcd.ie/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • tcd.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