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DNSViz: A DNS visualization tool

humancare.preprod.fcb.io

Updated: 2024-01-12 15:17:07 UTC (about a year ago) Update now
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DNSSEC options (hide)
  1. |?|
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  3. |?|
  4. |?|
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Notices
DNSSEC Authentication Chain

RRset statusRRset status

Insecure (3)
  • fcb.io/SOA
  • humancare.preprod.fcb.io/A
  • preprod.fcb.io/A (NXDOMAIN)
Secure (1)
  • io/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (7)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 30903)
  • NSEC3 proving non-existence of fcb.io/DS
  • io/DNSKEY (alg 8, id 21168)
  • io/DNSKEY (alg 8, id 25893)
  • io/DNSKEY (alg 8, id 57355)
  • io/DS (alg 8, id 57355)

Delegation statusDelegation status

Insecure (1)
  • io to fcb.io
Secure (1)
  • . to io

NoticesNotices

Errors (10)
  • NSEC3 proving non-existence of fcb.io/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 fcb.io/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
  • fcb.io zone: The server(s) responded over UDP with a malformed response or with an invalid RCODE. See RFC 1035, Sec. 4.1.1. (205.251.193.251, 205.251.194.50, 205.251.196.166, 205.251.199.28, 2600:9000:5301:fb00::1, 2600:9000:5302:3200::1, 2600:9000:5304:a600::1, 2600:9000:5307:1c00::1)
  • fcb.io/DNSKEY: The response had an invalid RCODE (REFUSED). See RFC 1035, Sec. 4.1.1. (205.251.193.251, 205.251.194.50, 205.251.196.166, 205.251.199.28, 2600:9000:5301:fb00::1, 2600:9000:5302:3200::1, 2600:9000:5304:a600::1, 2600:9000:5307:1c00::1, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_512_D_KN)
  • humancare.preprod.fcb.io/A: A query for humancare.preprod.fcb.io results in a NOERROR response, while a query for its ancestor, preprod.fcb.io, returns a name error (NXDOMAIN), which indicates that subdomains of preprod.fcb.io, including humancare.preprod.fcb.io, don't exist. See RFC 8020, Sec. 2. (205.251.193.74, 205.251.194.217, 205.251.197.183, 205.251.198.58, 2600:9000:5301:4a00::1, 2600:9000:5302:d900::1, 2600:9000:5305:b700::1, 2600:9000:5306:3a00::1, UDP_-_EDNS0_4096_D_KN)
  • humancare.preprod.fcb.io/A: The response had an invalid RCODE (REFUSED). See RFC 1035, Sec. 4.1.1. (205.251.193.251, 205.251.194.50, 205.251.196.166, 205.251.199.28, 2600:9000:5301:fb00::1, 2600:9000:5302:3200::1, 2600:9000:5304:a600::1, 2600:9000:5307:1c00::1, UDP_-_EDNS0_4096_D_KN)
  • preprod.fcb.io/A: The response had an invalid RCODE (REFUSED). See RFC 1035, Sec. 4.1.1. (205.251.193.251, 205.251.194.50, 205.251.196.166, 205.251.199.28, 2600:9000:5301:fb00::1, 2600:9000:5302:3200::1, 2600:9000:5304:a600::1, 2600:9000:5307:1c00::1, UDP_-_EDNS0_4096_D_KN)
  • humancare.preprod.fcb.io/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
  • fcb.io/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • humancare.preprod.fcb.io/CAA has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (4)
  • NSEC3 proving non-existence of fcb.io/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • NSEC3 proving non-existence of fcb.io/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • io to fcb.io: The following NS name(s) were found in the authoritative NS RRset, but not in the delegation NS RRset (i.e., in the io zone): ns-1820.awsdns-35.co.uk, ns-562.awsdns-06.net, ns-1190.awsdns-20.org, ns-507.awsdns-63.com See RFC 1034, Sec. 4.2.2.
  • io to fcb.io: The following NS name(s) were found in the delegation NS RRset (i.e., in the io zone), but not in the authoritative NS RRset: ns-330.awsdns-41.com, ns-729.awsdns-27.net, ns-1463.awsdns-54.org, ns-1594.awsdns-07.co.uk See RFC 1034, Sec. 4.2.2.

DNSKEY legend

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