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DNSViz: A DNS visualization tool

www.fi.muni.cz

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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 (3)
  • aisa.fi.muni.cz/A
  • aisa.fi.muni.cz/AAAA
  • www.fi.muni.cz/CNAME
Secure (1)
  • muni.cz/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (9)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 33853)
  • NSEC3 proving non-existence of fi.muni.cz/DS
  • cz/DNSKEY (alg 13, id 16513)
  • cz/DNSKEY (alg 13, id 20237)
  • cz/DS (alg 13, id 20237)
  • muni.cz/DNSKEY (alg 7, id 26957)
  • muni.cz/DNSKEY (alg 7, id 41133)
  • muni.cz/DS (alg 7, id 41133)

Delegation statusDelegation status

Insecure (1)
  • muni.cz to fi.muni.cz
Secure (2)
  • . to cz
  • cz to muni.cz

NoticesNotices

Errors (3)
  • NSEC3 proving non-existence of fi.muni.cz/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 fi.muni.cz/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
  • fi.muni.cz/DS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (147.251.6.10, UDP_-_NOEDNS_)
Warnings (7)
  • RRSIG NSEC3 proving non-existence of fi.muni.cz/DS alg 7, id 26957: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG muni.cz/DNSKEY alg 7, id 26957: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG muni.cz/DNSKEY alg 7, id 26957: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG muni.cz/DNSKEY alg 7, id 41133: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG muni.cz/DNSKEY alg 7, id 41133: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG muni.cz/SOA alg 7, id 26957: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • muni.cz to fi.muni.cz: Authoritative AAAA records exist for aisa.fi.muni.cz, but there are no corresponding AAAA glue records. 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