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DNSViz: A DNS visualization tool

fjfi.cvut.cz

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

RRset statusRRset status

Bogus (5)
  • fjfi.cvut.cz/MX
  • fjfi.cvut.cz/NS
  • fjfi.cvut.cz/NSEC3PARAM
  • fjfi.cvut.cz/SOA
  • fjfi.cvut.cz/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Bogus (4)
  • cvut.cz/DNSKEY (alg 13, id 41860)
  • cvut.cz/DNSKEY (alg 13, id 49265)
  • fjfi.cvut.cz/DNSKEY (alg 13, id 38165)
  • fjfi.cvut.cz/DS (alg 13, id 38165)
Secure (6)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 30903)
  • cvut.cz/DS (alg 13, id 41860)
  • cz/DNSKEY (alg 13, id 20237)
  • cz/DNSKEY (alg 13, id 47281)
  • cz/DS (alg 13, id 20237)

Delegation statusDelegation status

Bogus (1)
  • cz to cvut.cz
Secure (2)
  • . to cz
  • cvut.cz to fjfi.cvut.cz

NoticesNotices

Errors (11)
  • cvut.cz/DNSKEY (alg 13, id 41860): No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (147.32.1.9, 147.32.1.20, 2001:718:2:2200::100, 2001:718:2:2200::101, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_512_D_KN)
  • cvut.cz/DNSKEY (alg 13, id 49265): No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (147.32.1.9, 147.32.1.20, 2001:718:2:2200::100, 2001:718:2:2200::101, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_512_D_KN)
  • cz to cvut.cz: No valid RRSIGs made by a key corresponding to a DS RR were found covering the DNSKEY RRset, resulting in no secure entry point (SEP) into the zone. See RFC 4035, Sec. 2.2, RFC 6840, Sec. 5.11. (147.32.1.9, 147.32.1.20, 2001:718:2:2200::100, 2001:718:2:2200::101, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_512_D_KN)
  • cz to cvut.cz: The DS RRset for the zone included algorithm 13 (ECDSAP256SHA256), but no DS RR matched a DNSKEY with algorithm 13 that signs the zone's DNSKEY RRset. See RFC 4035, Sec. 2.2, RFC 6840, Sec. 5.11. (147.32.1.9, 147.32.1.20, 2001:718:2:2200::100, 2001:718:2:2200::101, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_512_D_KN)
  • fjfi.cvut.cz/DS (alg 13, id 38165): No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (147.32.1.9, 147.32.1.20, 2001:718:2:2200::100, 2001:718:2:2200::101, UDP_-_EDNS0_4096_D_KN)
  • fjfi.cvut.cz/DS (alg 13, id 38165): No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (147.32.1.9, 147.32.1.20, 2001:718:2:2200::100, 2001:718:2:2200::101, UDP_-_EDNS0_4096_D_KN)
  • fjfi.cvut.cz/DS has errors; select the "Denial of existence" DNSSEC option to see them.
  • fjfi.cvut.cz/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
  • fjfi.cvut.cz/A has errors; select the "Denial of existence" DNSSEC option to see them.
  • fjfi.cvut.cz/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • 3so407j6ce.fjfi.cvut.cz/A has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (4)
  • fjfi.cvut.cz/AAAA has warnings; select the "Denial of existence" DNSSEC option to see them.
  • fjfi.cvut.cz/A has warnings; select the "Denial of existence" DNSSEC option to see them.
  • fjfi.cvut.cz/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
  • 3so407j6ce.fjfi.cvut.cz/A 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