DNS
THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.2

dns2.tc.edu.tw · 163.17.40.3:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate subjectAltName did not match expected name `dns2.tc.edu.tw'

Certificate verification failed

Subject
C=TW L=臺中市 O=政府機關-市政府-教育局 CN=www.tc.edu.tw
Issuer
C=TW O=TAIWAN-CA CN=TWCA SSL Certification Authority
Valid from
2026-11-01T11:14:15+00:00
Expires
2027-03-24T15:59:59+00:00
Days remaining
137
Serial (hex)
47EA00000009E0A9218ADAB065FA7302
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:www.tc.edu.tw, DNS:tc.edu.tw, DNS:web.tc.edu.tw, DNS:service.tc.edu.tw, DNS:service-api.tc.edu.tw, DNS:api.tc.edu.tw, DNS:intraapi.tc.edu.tw, DNS:school-admin.tc.edu.tw, DNS:school.tc.edu.tw, DNS:extension.tc.edu.tw, DNS:game.tc.edu.tw, DNS:guidance.tc.edu.tw, DNS:epaper.tc.edu.tw, DNS:sso.tc.edu.tw, DNS:ip6.tc.edu.tw, DNS:ipv6.tc.edu.tw, DNS:ddnss.tc.edu.tw, DNS:mrtg.tc.edu.tw, DNS:netflow.tc.edu.tw, DNS:netflow2.tc.edu.tw, DNS:gitlab.tc.edu.tw, DNS:ljkg.tc.edu.tw, DNS:tcierc.tc.edu.tw, DNS:wsjh.tc.edu.tw, DNS:nxes.tc.edu.tw, DNS:nxjh.tc.edu.tw

SHA-256 fingerprint

C1:0B:53:6C:12:CB:4E:FC:26:7E:33:10:83:55:31:B1:F1:CB:AB:90:19:9D:92:84:D6:C2:B2:20:C2:01:57:5A
Certificate extensions & PEM
authorityKeyIdentifier
93:44:9A:89:60:81:8C:67:A2:12:F1:2D:3F:C3:7A:F7:76:7F:28:6D
subjectKeyIdentifier
20:58:5F:3B:15:EB:10:ED:97:31:69:34:05:AC:0E:08:36:75:41:C4
crlDistributionPoints
Full Name: URI:http://sslserver.twca.com.tw/sslserver/Cyber_SSL_2026.crl
subjectAltName
DNS:www.tc.edu.tw, DNS:tc.edu.tw, DNS:web.tc.edu.tw, DNS:service.tc.edu.tw, DNS:service-api.tc.edu.tw, DNS:api.tc.edu.tw, DNS:intraapi.tc.edu.tw, DNS:school-admin.tc.edu.tw, DNS:school.tc.edu.tw, DNS:extension.tc.edu.tw, DNS:game.tc.edu.tw, DNS:guidance.tc.edu.tw, DNS:epaper.tc.edu.tw, DNS:sso.tc.edu.tw, DNS:ip6.tc.edu.tw, DNS:ipv6.tc.edu.tw, DNS:ddnss.tc.edu.tw, DNS:mrtg.tc.edu.tw, DNS:netflow.tc.edu.tw, DNS:netflow2.tc.edu.tw, DNS:gitlab.tc.edu.tw, DNS:ljkg.tc.edu.tw, DNS:tcierc.tc.edu.tw, DNS:wsjh.tc.edu.tw, DNS:nxes.tc.edu.tw, DNS:nxjh.tc.edu.tw
authorityInfoAccess
CA Issuers - URI:http://sslserver.twca.com.tw/cacert/Cyber_SSL_2026.crt OCSP - URI:http://twcasslocsp.twca.com.tw/
certificatePolicies
Policy: 1.3.6.1.4.1.40869.1.1.21 CPS: https://www.twca.com.tw/ Policy: 2.23.140.1.2.2
basicConstraints
CA:FALSE
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Nov 1 11:14:16.382 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:C9:51:E6:45:5E:90:B1:26:F1:58:37: 82:11:18:D1:4C:A5:0D:F1:B0:EE:79:3A:7D:61:4B:D1: 43:E9:B0:9D:6E:02:21:00:97:6C:82:5F:CA:59:57:EE: 29:37:C6:4A:C5:9A:55:2E:BE:DF:74:63:BC:AE:3F:BD: 3C:0B:56:F1:EE:DD:55:BD Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Nov 1 11:14:16.209 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:FA:D1:7F:19:B4:8A:1B:6A:47:1E:C1: 16:14:09:59:7B:A3:5D:FD:D3:1E:F8:83:1D:1D:08:1B: 6D:B1:3C:76:73:02:21:00:A3:5B:EC:4B:56:F8:5B:89: A3:B8:0D:63:25:F2:F5:D1:03:EA:E9:3A:96:17:DF:6C: A0:C7:E6:DD:6D:FE:09:57 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Nov 1 11:14:16.177 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:56:07:3E:BD:C1:F9:5D:8D:20:BC:01:BC: 61:74:C0:2D:C8:1B:41:BE:56:D5:C2:0B:31:21:30:F3: 89:82:1D:11:02:20:57:56:45:6A:5A:AF:B3:7E:E9:D5: 2D:18:4E:EB:74:8D:C2:B8:80:94:30:55:2A:55:FC:2C: 7A:11:8F:B3:0E:31
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-11-06T16:17:59+00:00

Server-presented chain · 4 additional certificates

Chain certificate 1

Subject
C=TW O=TAIWAN-CA CN=TWCA SSL Certification Authority
Issuer
C=TW O=TAIWAN-CA CN=TWCA CYBER Root CA G3
Valid from
2026-10-30T13:55:58+00:00
Expires
2035-10-30T15:59:59+00:00
Days remaining
3279
Serial (hex)
47EA00000000000BF2677D8C642C6D26
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

57:75:B8:01:11:98:C4:98:AF:26:96:1C:CB:F7:7D:AC:14:A1:27:A2:21:EB:C1:40:12:ED:80:F8:A2:0F:35:F8
Certificate extensions & PEM
authorityKeyIdentifier
5D:C2:F3:DF:F4:4C:DB:B5:7B:9A:89:50:17:69:A2:7D:BA:88:EC:61
subjectKeyIdentifier
93:44:9A:89:60:81:8C:67:A2:12:F1:2D:3F:C3:7A:F7:76:7F:28:6D
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 2.23.140.1.2.2 Policy: 1.3.6.1.4.1.40869.1.1.21
crlDistributionPoints
Full Name: URI:http://RootCA.twca.com.tw/TWCARCA/cyber_rootg3_revoke_2026.crl
basicConstraints
CA:TRUE, pathlen:0
authorityInfoAccess
CA Issuers - URI:http://sslserver.twca.com.tw/cacert/cyber_rootg3_2026.crt OCSP - URI:http://rootocsp.twca.com.tw/
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=TW O=TAIWAN-CA CN=TWCA CYBER Root CA G3
Issuer
C=TW O=TAIWAN-CA OU=Root CA CN=TWCA CYBER Root CA
Valid from
2026-10-31T13:22:56+00:00
Expires
2036-10-31T15:59:59+00:00
Days remaining
3646
Serial (hex)
47EA00000000000EA9A634F5D6FD0AAF
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

6E:63:06:8C:8A:6B:42:2E:FF:A1:59:E9:83:A1:A6:82:44:38:48:EF:83:86:FE:E4:50:4A:AC:56:08:99:82:41
Certificate extensions & PEM
authorityKeyIdentifier
9D:85:61:14:7C:C1:62:6F:97:68:E4:4F:37:40:E1:AD:E0:0D:56:37
subjectKeyIdentifier
5D:C2:F3:DF:F4:4C:DB:B5:7B:9A:89:50:17:69:A2:7D:BA:88:EC:61
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 2.23.140.1.1 Policy: 2.23.140.1.2.2
crlDistributionPoints
Full Name: URI:http://RootCA.twca.com.tw/TWCARCA/cyber_root_revoke_2022.crl
basicConstraints
CA:TRUE
authorityInfoAccess
CA Issuers - URI:http://sslserver.twca.com.tw/cacert/cyber_root_2022.crt OCSP - URI:http://rootocsp.twca.com.tw/
-----BEGIN CERTIFICATE-----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BjATBgNVHSUEDDAKBggrBgEFBQcDATAcBgNVHSAEFTATMAcGBWeBDAEBMAgGBmeB
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L1RXQ0FSQ0EvY3liZXJfcm9vdF9yZXZva2VfMjAyMi5jcmwwDwYDVR0TAQH/BAUw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-----END CERTIFICATE-----

Chain certificate 3

Subject
C=TW O=TAIWAN-CA OU=Root CA CN=TWCA CYBER Root CA
Issuer
C=TW O=TAIWAN-CA OU=Root CA CN=TWCA Global Root CA
Valid from
2026-10-31T21:11:07+00:00
Expires
2030-11-01T15:59:59+00:00
Days remaining
1455
Serial (hex)
47EA000000000CD87512047CADA8C030
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

2A:72:29:91:1A:57:42:D0:3C:C3:78:08:AE:6C:45:D0:04:C1:01:74:19:2F:A1:6B:AC:5A:FD:15:37:66:E4:89
Certificate extensions & PEM
authorityKeyIdentifier
48:DB:CD:DE:8E:E9:49:72:5A:88:E8:B1:D8:3D:07:B3:B9:6B:66:50
subjectKeyIdentifier
9D:85:61:14:7C:C1:62:6F:97:68:E4:4F:37:40:E1:AD:E0:0D:56:37
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 2.23.140.1.1 Policy: 2.23.140.1.2.2
crlDistributionPoints
Full Name: URI:http://RootCA.twca.com.tw/TWCARCA/global_revoke_4096.crl
basicConstraints
CA:TRUE
authorityInfoAccess
CA Issuers - URI:http://sslserver.twca.com.tw/cacert/root4096.crt OCSP - URI:http://rootocsp.twca.com.tw/
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 4

Subject
C=TW O=TAIWAN-CA OU=Root CA CN=TWCA Global Root CA
Issuer
C=TW O=TAIWAN-CA OU=Root CA CN=TWCA Global Root CA
Valid from
2012-06-27T06:28:33+00:00
Expires
2030-12-31T15:59:59+00:00
Days remaining
1515
Serial (hex)
0CBE
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

59:76:90:07:F7:68:5D:0F:CD:50:87:2F:9F:95:D5:75:5A:5B:2B:45:7D:81:F3:69:2B:61:0A:98:67:2F:0E:1B
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

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