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DNSViz: A DNS visualization tool

tu-berlin.de

DNSSEC options (hide)
  1. |?|
  2. |?|
  3. |?|
  4. |?|
  5. |?|
  6. |?|
  7. |?|
  8. |?|
  9. |?|
  10. |?|
Notices
DNSSEC Authentication Chain

RRset statusRRset status

Insecure (5)
  • tu-berlin.de/A
  • tu-berlin.de/MX
  • tu-berlin.de/NS
  • tu-berlin.de/SOA
  • tu-berlin.de/TXT
Secure (1)
  • de/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (6)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 47671)
  • NSEC3 proving non-existence of tu-berlin.de/DS
  • de/DNSKEY (alg 8, id 26755)
  • de/DNSKEY (alg 8, id 42156)
  • de/DS (alg 8, id 26755)

Delegation statusDelegation status

Insecure (1)
  • de to tu-berlin.de
Secure (1)
  • . to de

NoticesNotices

Errors (3)
  • NSEC3 proving non-existence of tu-berlin.de/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 tu-berlin.de/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
  • tu-berlin.de/DS has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (4)
  • NSEC3 proving non-existence of tu-berlin.de/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • NSEC3 proving non-existence of tu-berlin.de/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • de to tu-berlin.de: No response was received from the server over UDP (tried 6 times) until the COOKIE EDNS option was removed (however, this server appeared to respond legitimately to other queries with the COOKIE EDNS option present). See RFC 6891, Sec. 6.1.2. (2001:678:2::53, UDP_-_EDNS0_4096_D_KN)
  • tu-berlin.de/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