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DNSViz: A DNS visualization tool

www.nthu.edu.tw

Updated: 2022-01-19 02:19:08 UTC (836 days ago) Update now
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DNSSEC options (hide)
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Notices
DNSSEC Authentication Chain

RRset statusRRset status

Insecure (1)
  • www.nthu.edu.tw/A
Secure (1)
  • edu.tw/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (12)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 9799)
  • NSEC3 proving non-existence of nthu.edu.tw/DS
  • edu.tw/DNSKEY (alg 8, id 13840)
  • edu.tw/DNSKEY (alg 8, id 47664)
  • edu.tw/DNSKEY (alg 8, id 48045)
  • edu.tw/DNSKEY (alg 8, id 51594)
  • edu.tw/DS (alg 8, id 13840)
  • edu.tw/DS (alg 8, id 33619)
  • tw/DNSKEY (alg 8, id 40792)
  • tw/DNSKEY (alg 8, id 6363)
  • tw/DS (alg 8, id 40792)
Non_existent (1)
  • edu.tw/DNSKEY (alg 8, id 33619)

Delegation statusDelegation status

Insecure (1)
  • edu.tw to nthu.edu.tw
Secure (2)
  • . to tw
  • tw to edu.tw

NoticesNotices

Warnings (8)
  • edu.tw/DNSKEY (alg 8, id 13840): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. (2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)
  • edu.tw/DNSKEY (alg 8, id 47664): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. (2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)
  • edu.tw/DNSKEY (alg 8, id 48045): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. (2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)
  • edu.tw/DNSKEY (alg 8, id 51594): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. (2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)
  • edu.tw/DS (alg 8, id 13840): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. (2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)
  • edu.tw/DS (alg 8, id 13840): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. (2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)
  • edu.tw/DS (alg 8, id 33619): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. (2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)
  • edu.tw/DS (alg 8, id 33619): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. (2001:45b1:0:5::25, UDP_-_EDNS0_4096_D_KN)

DNSKEY legend

Full legend
SEP bit setSEP bit set
Revoke bit setRevoke bit set
Trust anchorTrust anchor
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DNSSEC authentication graph