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

TLSv1.3

mg1.ntust.edu.tw · 140.118.31.92:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
C=TW ST=Taiwan L=Taipei O=National Taiwan University of Science and Technology CN=*.ntust.edu.tw
Issuer
C=TW O=TAIWAN-CA CN=TWCA SSL Certification Authority
Valid from
2026-11-01T01:15:41+00:00
Expires
2027-02-18T15:59:59+00:00
Days remaining
105
Serial (hex)
47EA00000009A9F9A774D1157A1C392C
Signature
RSA-SHA384
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.ntust.edu.tw, DNS:ntust.edu.tw

SHA-256 fingerprint

58:DC:34:13:75:13:B8:C7:3A:D7:68:A9:21:3A:87:40:A7:27:8D:31:AB:38:2E:75:57:4E:26:8E:58:4A:AB:C9
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
5C:C7:2F:20:E4:F6:17:E8:97:44:91:24:74:98:FD:25:A5:23:DE:0C
crlDistributionPoints
Full Name: URI:http://sslserver.twca.com.tw/sslserver/Cyber_SSL_2026.crl
subjectAltName
DNS:*.ntust.edu.tw, DNS:ntust.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 01:15:42.757 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:FA:F4:02:B5:A6:03:B2:DF:33:B8:7B: 47:3B:67:C1:B0:17:E2:7F:D8:14:0C:CA:82:D6:88:BE: DE:36:62:1E:C6:02:20:38:F1:F8:FD:7A:5D:1D:46:50: 7A:6C:CD:20:64:4F:AA:B9:CA:53:E2:6E:49:2F:EC:47: 7C:DF:D7:79:25:EB:D9 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 01:15:42.959 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:89:FA:F8:AB:FF:48:F2:F3:2E:62:C1: 1A:64:4B:0D:3C:55:73:D9:91:2A:71:EB:12:42:57:B4: DF:9D:75:E2:C6:02:20:29:6C:50:3F:BB:2F:D5:C4:28: 6C:80:4A:9B:1F:F1:01:3D:E8:D5:78:AD:91:78:A7:BD: CD:15:72:17:D6:E0:C0 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 01:15:42.742 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:91:64:89:F1:9A:4D:2F:F2:E3:A0:61: 2E:7A:D9:06:F2:6B:07:20:36:9D:13:00:4A:AB:F4:D9: 2C:FC:9A:C9:78:02:21:00:89:39:76:DC:2E:49:5C:3A: 1F:7F:CA:7F:79:7D:09:B1:12:12:BF:E0:50:52:1A:FC: A2:9D:21:38:93:FE:18:16
-----BEGIN CERTIFICATE-----
MIIHnDCCBYSgAwIBAgIQR+oAAAAJqfmndNEVehw5LDANBgkqhkiG9w0BAQwFADBM
MQswCQYDVQQGEwJUVzESMBAGA1UEChMJVEFJV0FOLUNBMSkwJwYDVQQDEyBUV0NB
IFNTTCBDZXJ0aWZpY2F0aW9uIEF1dGhvcml0eTAeFw0yNjExMDEwMTE1NDFaFw0y
NzAyMTgxNTU5NTlaMIGHMQswCQYDVQQGEwJUVzEPMA0GA1UECBMGVGFpd2FuMQ8w
DQYDVQQHEwZUYWlwZWkxPTA7BgNVBAoTNE5hdGlvbmFsIFRhaXdhbiBVbml2ZXJz
aXR5IG9mIFNjaWVuY2UgYW5kIFRlY2hub2xvZ3kxFzAVBgNVBAMMDioubnR1c3Qu
ZWR1LnR3MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1eJcKlvPyBIF
w1222tCiSQDIGwczn8xo/zZfTMM/ukoEn3xKkpWHcqnoIguLErCkEUHNJrIZJp6x
Qwkwlf31XFWeo1aUYasnXpvYJHVhX5GFPz4aiN/y8M1OvLE4reUoYbERx0lBVF1q
3SBvvYefi3Xiuvhcrs9dZZ8TWZWGzyZtABFYHCnNZB5e8aK8AaxsU5Fd5Vq/eS54
F0aDf0gX1QDmkA0JZsNjwV2UT40lrgUMQXwnPLEZYBZGdOdVy1obNym2cAqHaq7I
SBunQIH6w3ScVCgUoXlJVltzhV6wUQP//UY29SoltCasxOo/IT6kdXpQWFQZLX7V
kgTa+N2CawIDAQABo4IDPDCCAzgwHwYDVR0jBBgwFoAUk0SaiWCBjGeiEvEtP8N6
93Z/KG0wHQYDVR0OBBYEFFzHLyDk9hfol0SRJHSY/SWlI94MMEoGA1UdHwRDMEEw
P6A9oDuGOWh0dHA6Ly9zc2xzZXJ2ZXIudHdjYS5jb20udHcvc3Nsc2VydmVyL0N5
YmVyX1NTTF8yMDI2LmNybDAnBgNVHREEIDAegg4qLm50dXN0LmVkdS50d4IMbnR1
c3QuZWR1LnR3MH8GCCsGAQUFBwEBBHMwcTBCBggrBgEFBQcwAoY2aHR0cDovL3Nz
bHNlcnZlci50d2NhLmNvbS50dy9jYWNlcnQvQ3liZXJfU1NMXzIwMjYuY3J0MCsG
CCsGAQUFBzABhh9odHRwOi8vdHdjYXNzbG9jc3AudHdjYS5jb20udHcvMEoGA1Ud
IARDMEEwNQYLKwYBBAGCvyUBARUwJjAkBggrBgEFBQcCARYYaHR0cHM6Ly93d3cu
dHdjYS5jb20udHcvMAgGBmeBDAECAjAMBgNVHRMBAf8EAjAAMA4GA1UdDwEB/wQE
AwIFoDATBgNVHSUEDDAKBggrBgEFBQcDATCCAX8GCisGAQQB1nkCBAIEggFvBIIB
awFpAHYAHJ9oLOn68EVpUPgbloqH3dsyENhM5siy44JSSsTPWZ8AAAGhlK05JQAA
BAMARzBFAiEA+vQCtaYDst8zuHtHO2fBsBfif9gUDMqC1oi+3jZiHsYCIDjx+P16
XR1GUHpszSBkT6q5ylPibkkv7Ed839d5JevZAHYAYEyar3p/d18B1Ab8kg3ImesL
HH34yVIb+voXdzuXi8kAAAGhlK057wAABAMARzBFAiEAifr4q/9I8vMuYsEaZEsN
PFVz2ZEqcesSQle035114sYCIClsUD+7L9XEKGyASpsf8QE96NV4rZF4p73NFXIX
1uDAAHcATGPcmOWcHauI9h6KPd6uj6tEozd7X5uUw/uhnPzBviYAAAGhlK05FgAA
BAMASDBGAiEAkWSJ8ZpNL/LjoGEuetkG8msHIDadEwBKq/TZLPyayXgCIQCJOXbc
LklcOh9/yn95fQmxEhK/4FBSGvyinSE4k/4YFjANBgkqhkiG9w0BAQwFAAOCAgEA
JsZGXPp+AnClDp2eE5qB+wGklzIj9FMtvB5+aPgDC5eJE0lzYBbNZzfj8OHqLPgz
xxkwdfVEyQCj+0+HA4mHAjKj7yf30FXYGJVhx4O0w1LjSqFOu9fi8PVqpJ+z15wn
7oE60vPayrpBV6QB89v8eNUQbzcSk2q2fHbn6Xi6Fxtnz/FDimKL2S91w2NFxKzh
/TcK0lOJhfbJTrVwW50cnxtNdxgm1USUhldNfvWo7AoSp3X64OJ+XHw4kgE/GecE
MQwd502buEk7VkZV5WbJ9ma75+Bw9EfGcn0tLstWCx6CS45WMx9DKCpTqJJyOPoV
fjKcD0pRnrf/ppWV4dQjm5L8RERbP0uC4tJCaDObBhxo5Dlr5G3X89Z6Cdvi1g+t
TyfGft14JWgqGD3LKPJjtnBBrtbX/LggGsw2xXRiJZp0Wltet9LWfiJUNKSPgkya
4KqvR6HX4ka0EUTZB/oyoUW1QJsotpsgeKpyGr7wdcBjaX/ZfYPceommXc3+Yygr
k5guZe8ggRhf2FHO+Ubu/AhP2f5brW81iz1wdLDhy1WaK67aqDk/umqJnpayq+r+
Z7B9IasixT5DtlhnzHh8qclJpmMuhkYcBUzJKDd965pr7h5IpeXcBNA/bKC3Rx5q
TfxbPmmtjMletw0cvABlEp+hl6C5bGZYBzMEPodNs/E=
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-04T21:19:46+00:00

Server-presented chain · 3 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
3281
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
3648
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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-----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
1457
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-----

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

View certificate JSON

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