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DNSViz: A DNS visualization tool

railway.gov.tw

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

RRset statusRRset status

Secure (10)
  • railway.gov.tw/MX
  • railway.gov.tw/NS
  • railway.gov.tw/NSEC3PARAM
  • railway.gov.tw/NSEC3PARAM
  • railway.gov.tw/NSEC3PARAM
  • railway.gov.tw/NSEC3PARAM
  • railway.gov.tw/NSEC3PARAM
  • railway.gov.tw/NSEC3PARAM
  • railway.gov.tw/SOA
  • railway.gov.tw/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (16)
  • ./DNSKEY (alg 8, id 11019)
  • ./DNSKEY (alg 8, id 20326)
  • gov.tw/DNSKEY (alg 8, id 19435)
  • gov.tw/DNSKEY (alg 8, id 20904)
  • gov.tw/DNSKEY (alg 8, id 36051)
  • gov.tw/DS (alg 8, id 19435)
  • gov.tw/DS (alg 8, id 514)
  • railway.gov.tw/DNSKEY (alg 8, id 18573)
  • railway.gov.tw/DNSKEY (alg 8, id 34144)
  • railway.gov.tw/DNSKEY (alg 8, id 5314)
  • railway.gov.tw/DS (alg 8, id 34144)
  • railway.gov.tw/DS (alg 8, id 5314)
  • tw/DNSKEY (alg 8, id 10821)
  • tw/DNSKEY (alg 8, id 36693)
  • 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 (18)
  • RRSIG railway.gov.tw/MX alg 8, id 18573: The TTL of the RRset (2229) exceeds the value of the Original TTL field of the RRSIG RR covering it (2225). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/MX alg 8, id 18573: The TTL of the RRset (2229) exceeds the value of the Original TTL field of the RRSIG RR covering it (870). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/MX alg 8, id 18573: The TTL of the RRset (2229) exceeds the value of the Original TTL field of the RRSIG RR covering it (871). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/NS alg 8, id 18573: The TTL of the RRset (2586) exceeds the value of the Original TTL field of the RRSIG RR covering it (959). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/NS alg 8, id 18573: The TTL of the RRset (2586) exceeds the value of the Original TTL field of the RRSIG RR covering it (959). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/SOA alg 8, id 18573: The TTL of the RRset (85419) exceeds the value of the Original TTL field of the RRSIG RR covering it (84367). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/SOA alg 8, id 18573: The TTL of the RRset (85419) exceeds the value of the Original TTL field of the RRSIG RR covering it (84368). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/SOA alg 8, id 18573: The TTL of the RRset (85419) exceeds the value of the Original TTL field of the RRSIG RR covering it (85415). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/TXT alg 8, id 18573: The TTL of the RRset (2473) exceeds the value of the Original TTL field of the RRSIG RR covering it (852). See RFC 4035, Sec. 2.2.
  • railway.gov.tw zone: The server(s) were not responsive to queries over TCP. See RFC 1035, Sec. 4.2. (2001:4420:60ab:1fd::6)
  • railway.gov.tw/SOA: The TCP connection was interrupted (ECONNRESET). See RFC 1035, Sec. 4.2. (2001:4420:60ab:1fd::6, TCP_-_EDNS0_4096_D_N)
  • tw zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (202.12.31.53)
  • tw/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (204.61.216.119, 2001:500:14:6119:ad::1, UDP_-_EDNS0_512_D_KN)
  • tw/DS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2001:500:200::b, UDP_-_NOEDNS_)
  • railway.gov.tw/A has errors; select the "Denial of existence" DNSSEC option to see them.
  • gi3mhxo6yv.railway.gov.tw/A has errors; select the "Denial of existence" DNSSEC option to see them.
  • railway.gov.tw/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • railway.gov.tw/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (4)
  • railway.gov.tw/A has warnings; select the "Denial of existence" DNSSEC option to see them.
  • gi3mhxo6yv.railway.gov.tw/A has warnings; select the "Denial of existence" DNSSEC option to see them.
  • railway.gov.tw/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
  • railway.gov.tw/AAAA 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