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DNSViz: A DNS visualization tool

www.railway.gov.tw

Updated: 2024-08-26 10:35:29 UTC (91 days ago) Update now
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DNSSEC options (hide)
  1. |?|
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Notices
DNSSEC Authentication Chain

RRset statusRRset status

Secure (2)
  • www.railway.gov.tw/A
  • www.railway.gov.tw/AAAA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (19)
  • ./DNSKEY (alg 8, id 20038)
  • ./DNSKEY (alg 8, id 20326)
  • gov.tw/DNSKEY (alg 8, id 16488)
  • gov.tw/DNSKEY (alg 8, id 17754)
  • gov.tw/DNSKEY (alg 8, id 19435)
  • gov.tw/DS (alg 8, id 19435)
  • gov.tw/DS (alg 8, id 514)
  • railway.gov.tw/DNSKEY (alg 8, id 10605)
  • railway.gov.tw/DNSKEY (alg 8, id 28365)
  • railway.gov.tw/DNSKEY (alg 8, id 28582)
  • railway.gov.tw/DNSKEY (alg 8, id 34144)
  • railway.gov.tw/DNSKEY (alg 8, id 40171)
  • railway.gov.tw/DNSKEY (alg 8, id 52161)
  • railway.gov.tw/DS (alg 8, id 28582)
  • railway.gov.tw/DS (alg 8, id 34144)
  • tw/DNSKEY (alg 8, id 10665)
  • tw/DNSKEY (alg 8, id 41124)
  • tw/DNSKEY (alg 8, id 51277)
  • tw/DS (alg 8, id 51277)
Non_existent (1)
  • gov.tw/DNSKEY (alg 8, id 514)

Delegation statusDelegation status

Secure (3)
  • . to tw
  • gov.tw to railway.gov.tw
  • tw to gov.tw

NoticesNotices

Errors (2)
  • gov.tw/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (2001:45b1:0:5::24, 2001:45b1:0:5::25, UDP_-_EDNS0_512_D_KN)
  • railway.gov.tw/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (5)
  • ./DNSKEY (alg 8, id 20038): The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (2001:500:2f::f, UDP_-_EDNS0_4096_D_KN)
  • ./DNSKEY (alg 8, id 20326): The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (2001:500:2f::f, UDP_-_EDNS0_4096_D_KN)
  • tw/DS (alg 8, id 51277): The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (2001:500:2f::f, UDP_-_EDNS0_4096_D_KN)
  • tw/DS (alg 8, id 51277): The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (2001:500:2f::f, UDP_-_EDNS0_4096_D_KN)
  • railway.gov.tw/CNAME 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