RRSIG www.railway.gov.tw/A alg 8, id 8790: The TTL of the RRset (2112) exceeds the value of the Original TTL field of the RRSIG RR covering it (1450). See RFC 4035, Sec. 2.2.
RRSIG www.railway.gov.tw/AAAA alg 8, id 8790: The TTL of the RRset (2080) exceeds the value of the Original TTL field of the RRSIG RR covering it (1439). See RFC 4035, Sec. 2.2.
gov.tw to railway.gov.tw: No valid RRSIGs made by a key corresponding to a DS RR were found covering the DNSKEY RRset, resulting in no secure entry point (SEP) into the zone. See RFC 4035, Sec. 2.2, RFC 6840, Sec. 5.11. (163.29.186.200, 163.29.186.201, 210.241.82.200, 210.241.82.201, 2001:4420:60ab:1fd::6, 2001:4420:60ab:1fd::7, 2001:4420:60ac:1fd::6, 2001:4420:60ac:1fd::7, UDP_-_EDNS0_4096_D_KN)
gov.tw to railway.gov.tw: The DS RRset for the zone included algorithm 8 (RSASHA256), but no DS RR matched a DNSKEY with algorithm 8 that signs the zone's DNSKEY RRset. See RFC 4035, Sec. 2.2, RFC 6840, Sec. 5.11. (163.29.186.200, 163.29.186.201, 210.241.82.200, 210.241.82.201, 2001:4420:60ab:1fd::6, 2001:4420:60ab:1fd::7, 2001:4420:60ac:1fd::6, 2001:4420:60ac:1fd::7, UDP_-_EDNS0_4096_D_KN)
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 (3)
RRSIG www.railway.gov.tw/A alg 8, id 8790: The value of the Signature Inception field of the RRSIG RR (2023-07-27 16:19:17+00:00) is within possible clock skew range (0 seconds) of the current time (2023-07-27 16:19:17+00:00). See RFC 4035, Sec. 5.3.1.
RRSIG www.railway.gov.tw/AAAA alg 8, id 8790: The value of the Signature Inception field of the RRSIG RR (2023-07-27 16:19:17+00:00) is within possible clock skew range (0 seconds) of the current time (2023-07-27 16:19:17+00:00). See RFC 4035, Sec. 5.3.1.
railway.gov.tw/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.