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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 (8)
  • 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/SOA
  • railway.gov.tw/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (13)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 60955)
  • gov.tw/DNSKEY (alg 8, id 19435)
  • gov.tw/DNSKEY (alg 8, id 20970)
  • gov.tw/DNSKEY (alg 8, id 42045)
  • gov.tw/DS (alg 8, id 19435)
  • gov.tw/DS (alg 8, id 514)
  • railway.gov.tw/DNSKEY (alg 8, id 29995)
  • railway.gov.tw/DNSKEY (alg 8, id 59379)
  • railway.gov.tw/DS (alg 8, id 29995)
  • tw/DNSKEY (alg 8, id 22479)
  • 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 (10)
  • RRSIG railway.gov.tw/MX alg 8, id 59379: The TTL of the RRset (950) exceeds the value of the Original TTL field of the RRSIG RR covering it (949). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/NS alg 8, id 59379: The TTL of the RRset (1436) exceeds the value of the Original TTL field of the RRSIG RR covering it (1210). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/SOA alg 8, id 59379: The TTL of the RRset (83396) exceeds the value of the Original TTL field of the RRSIG RR covering it (83395). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/TXT alg 8, id 59379: The TTL of the RRset (3600) exceeds the value of the Original TTL field of the RRSIG RR covering it (3599). See RFC 4035, Sec. 2.2.
  • RRSIG railway.gov.tw/TXT alg 8, id 59379: The TTL of the RRset (3600) exceeds the value of the Original TTL field of the RRSIG RR covering it (3599). See RFC 4035, Sec. 2.2.
  • tw zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2001:b020:0:77::1)
  • 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.
  • railway.gov.tw/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • 9g0izudqvh.railway.gov.tw/A has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (12)
  • RRSIG railway.gov.tw/MX alg 8, id 59379: The value of the Signature Inception field of the RRSIG RR (2023-05-12 04:55:27+00:00) is within possible clock skew range (4 seconds) of the current time (2023-05-12 04:55:31+00:00). See RFC 4035, Sec. 5.3.1.
  • RRSIG railway.gov.tw/NS alg 8, id 59379: The value of the Signature Inception field of the RRSIG RR (2023-05-12 04:55:27+00:00) is within possible clock skew range (4 seconds) of the current time (2023-05-12 04:55:31+00:00). See RFC 4035, Sec. 5.3.1.
  • RRSIG railway.gov.tw/NSEC3PARAM alg 8, id 59379: The value of the Signature Inception field of the RRSIG RR (2023-05-12 04:55:27+00:00) is within possible clock skew range (4 seconds) of the current time (2023-05-12 04:55:31+00:00). See RFC 4035, Sec. 5.3.1.
  • RRSIG railway.gov.tw/NSEC3PARAM alg 8, id 59379: The value of the Signature Inception field of the RRSIG RR (2023-05-12 04:55:27+00:00) is within possible clock skew range (4 seconds) of the current time (2023-05-12 04:55:31+00:00). See RFC 4035, Sec. 5.3.1.
  • RRSIG railway.gov.tw/SOA alg 8, id 59379: The value of the Signature Inception field of the RRSIG RR (2023-05-12 04:55:27+00:00) is within possible clock skew range (4 seconds) of the current time (2023-05-12 04:55:31+00:00). See RFC 4035, Sec. 5.3.1.
  • RRSIG railway.gov.tw/SOA alg 8, id 59379: The value of the Signature Inception field of the RRSIG RR (2023-05-12 04:55:28+00:00) is within possible clock skew range (3 seconds) of the current time (2023-05-12 04:55:31+00:00). See RFC 4035, Sec. 5.3.1.
  • RRSIG railway.gov.tw/SOA alg 8, id 59379: The value of the Signature Inception field of the RRSIG RR (2023-05-12 04:55:28+00:00) is within possible clock skew range (3 seconds) of the current time (2023-05-12 04:55:31+00:00). See RFC 4035, Sec. 5.3.1.
  • RRSIG railway.gov.tw/SOA alg 8, id 59379: The value of the Signature Inception field of the RRSIG RR (2023-05-12 04:55:29+00:00) is within possible clock skew range (2 seconds) of the current time (2023-05-12 04:55:31+00:00). See RFC 4035, Sec. 5.3.1.
  • 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.
  • railway.gov.tw/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
  • 9g0izudqvh.railway.gov.tw/A 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