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DNSViz: A DNS visualization tool

cem.es

Updated: 2020-06-25 16:03:08 UTC (1546 days ago) Update now
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DNSSEC options (hide)
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Notices
DNSSEC Authentication Chain

RRset statusRRset status

Insecure (8)
  • cem.es/A
  • cem.es/AAAA
  • cem.es/MX
  • cem.es/NS
  • cem.es/NS
  • cem.es/SOA
  • cem.es/SOA
  • cem.es/TXT
Secure (1)
  • es/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (9)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 46594)
  • ./DNSKEY (alg 8, id 48903)
  • NSEC3 proving non-existence of cem.es/DS
  • es/DNSKEY (alg 8, id 40876)
  • es/DNSKEY (alg 8, id 50252)
  • es/DS (alg 8, id 29450)
  • es/DS (alg 8, id 50252)
  • es/DS (alg 8, id 50252)
Non_existent (1)
  • es/DNSKEY (alg 8, id 29450)

Delegation statusDelegation status

Insecure (1)
  • es to cem.es
Secure (1)
  • . to es

NoticesNotices

Errors (6)
  • NSEC3 proving non-existence of cem.es/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 cem.es/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
  • cem.es zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2001:720:438:400::101)
  • cem.es/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2001:720:438:400::101, UDP_-_NOEDNS_)
  • cem.es/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2001:720:438:400::101, UDP_-_NOEDNS_)
  • cem.es/DS has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (8)
  • NSEC3 proving non-existence of cem.es/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • NSEC3 proving non-existence of cem.es/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • es to cem.es: The following NS name(s) were found in the authoritative NS RRset, but not in the delegation NS RRset (i.e., in the es zone): dns.ipv6.es, sunrelay.rediris.es See RFC 1034, Sec. 4.2.2.
  • es/DS (alg 8, id 50252): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • es/DS (alg 8, id 50252): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • es/DS (alg 8, id 50252): 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.
  • es/DS (alg 8, id 50252): 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.
  • cem.es/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