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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 (9)
  • 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/SOA
  • railway.gov.tw/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (15)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 30903)
  • gov.tw/DNSKEY (alg 8, id 14718)
  • gov.tw/DNSKEY (alg 8, id 19435)
  • gov.tw/DNSKEY (alg 8, id 22578)
  • gov.tw/DS (alg 8, id 19435)
  • gov.tw/DS (alg 8, id 514)
  • railway.gov.tw/DNSKEY (alg 8, id 34144)
  • railway.gov.tw/DNSKEY (alg 8, id 47331)
  • 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 51277)
  • tw/DNSKEY (alg 8, id 56391)
  • 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 (14)
  • RRSIG railway.gov.tw/MX alg 8, id 47331: The TTL of the RRset (3089) exceeds the value of the Original TTL field of the RRSIG RR covering it (3087). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/MX alg 8, id 47331: The TTL of the RRset (3089) exceeds the value of the Original TTL field of the RRSIG RR covering it (906). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/MX alg 8, id 47331: The TTL of the RRset (3089) exceeds the value of the Original TTL field of the RRSIG RR covering it (906). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/NS alg 8, id 47331: The TTL of the RRset (3059) exceeds the value of the Original TTL field of the RRSIG RR covering it (144). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/NS alg 8, id 47331: The TTL of the RRset (3059) exceeds the value of the Original TTL field of the RRSIG RR covering it (144). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/SOA alg 8, id 47331: The TTL of the RRset (84183) exceeds the value of the Original TTL field of the RRSIG RR covering it (84177). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/SOA alg 8, id 47331: The TTL of the RRset (84183) exceeds the value of the Original TTL field of the RRSIG RR covering it (84179). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/SOA alg 8, id 47331: The TTL of the RRset (84183) exceeds the value of the Original TTL field of the RRSIG RR covering it (84182). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/TXT alg 8, id 47331: The TTL of the RRset (922) exceeds the value of the Original TTL field of the RRSIG RR covering it (919). See RFC 4035, Sec. 2.2.
  • 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/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.
  • b10hzapls9.railway.gov.tw/A 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 (9)
  • railway.gov.tw/DNSKEY (alg 8, id 34144): 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. See RFC 6891, Sec. 6.2.6. (2001:4420:60ac:1fd::6, UDP_-_EDNS0_4096_D_KN)
  • railway.gov.tw/DNSKEY (alg 8, id 47331): 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. See RFC 6891, Sec. 6.2.6. (2001:4420:60ac:1fd::6, UDP_-_EDNS0_4096_D_KN)
  • railway.gov.tw/DNSKEY (alg 8, id 5314): 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. See RFC 6891, Sec. 6.2.6. (2001:4420:60ac:1fd::6, UDP_-_EDNS0_4096_D_KN)
  • railway.gov.tw/SOA: 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. See RFC 6891, Sec. 6.2.6. (2001:4420:60ac:1fd::6, UDP_-_EDNS0_4096_D_KN)
  • railway.gov.tw/A has warnings; select the "Denial of existence" DNSSEC option to see them.
  • railway.gov.tw/DNSKEY 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.
  • b10hzapls9.railway.gov.tw/A 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