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DNSViz: A DNS visualization tool

_acme-challenge.tizlab.xyz

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DNSSEC options (hide)
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Notices
DNSSEC Authentication Chain

RRset statusRRset status

Insecure (2)
  • _acme-challenge.tizlab.xyz/TXT
  • tizlab.xyz/CNAME
Secure (2)
  • xyz/SOA
  • xyz/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (7)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 20826)
  • NSEC3 proving non-existence of tizlab.xyz/DS
  • xyz/DNSKEY (alg 8, id 3599)
  • xyz/DNSKEY (alg 8, id 53358)
  • xyz/DS (alg 8, id 3599)
  • xyz/DS (alg 8, id 3599)

Delegation statusDelegation status

Insecure (1)
  • xyz to tizlab.xyz
Secure (1)
  • . to xyz

NoticesNotices

Errors (2)
  • NSEC3 proving non-existence of tizlab.xyz/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 tizlab.xyz/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
Warnings (6)
  • tizlab.xyz/CNAME: The server returned CNAME for tizlab.xyz, but records of other types exist at that name. See RFC 2181, Sec. 10.1.
  • xyz/DS (alg 8, id 3599): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • xyz/DS (alg 8, id 3599): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • xyz/DS (alg 8, id 3599): DS records with digest type 1 (SHA-1) are ignored when DS records with digest type 2 (SHA-256) exist in the same RRset. See RFC 4509, Sec. 3.
  • xyz/DS (alg 8, id 3599): DS records with digest type 1 (SHA-1) are ignored when DS records with digest type 2 (SHA-256) exist in the same RRset. See RFC 4509, Sec. 3.
  • tizlab.xyz/CNAME 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