This service provide certificate information from hostname: www.tkc.tw
Certificate:
Data:
Version: 3 (0x2)
Serial Number:
79:23:31:e9:69:b4:9d:e4:0e:77:0a:8a:88:b3:8a:82
Signature Algorithm: ecdsa-with-SHA256
Issuer: C = US, O = Google Trust Services, CN = WE1
Validity
Not Before: Jun 7 09:55:57 2025 GMT
Not After : Sep 5 10:53:38 2025 GMT
Subject: CN = tkc.tw
Subject Public Key Info:
Public Key Algorithm: id-ecPublicKey
Public-Key: (256 bit)
pub:
04:e7:af:c7:3b:5c:95:28:68:a3:7a:12:e7:ee:32:
bb:07:78:b7:26:f0:69:69:d0:b3:0b:e0:12:2b:60:
c3:f7:c3:ff:41:8c:6a:39:9e:ff:2a:bb:c8:4e:2f:
bd:41:15:47:67:32:81:85:88:91:d3:38:5a:08:e8:
ce:c3:c4:c7:bf
ASN1 OID: prime256v1
NIST CURVE: P-256
X509v3 extensions:
X509v3 Key Usage: critical
Digital Signature
X509v3 Extended Key Usage:
TLS Web Server Authentication
X509v3 Basic Constraints: critical
CA:FALSE
X509v3 Subject Key Identifier:
10:07:D2:D4:CB:36:26:AB:68:5A:06:4E:8B:D9:56:75:CA:57:CB:A1
X509v3 Authority Key Identifier:
90:77:92:35:67:C4:FF:A8:CC:A9:E6:7B:D9:80:79:7B:CC:93:F9:38
Authority Information Access:
OCSP - URI:http://o.pki.goog/s/we1/eSM
CA Issuers - URI:http://i.pki.goog/we1.crt
X509v3 Subject Alternative Name:
DNS:tkc.tw, DNS:*.tkc.tw
X509v3 Certificate Policies:
Policy: 2.23.140.1.2.1
X509v3 CRL Distribution Points:
Full Name:
URI:http://c.pki.goog/we1/8GJyPhuLa-4.crl
CT Precertificate SCTs:
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : DD:DC:CA:34:95:D7:E1:16:05:E7:95:32:FA:C7:9F:F8:
3D:1C:50:DF:DB:00:3A:14:12:76:0A:2C:AC:BB:C8:2A
Timestamp : Jun 7 10:55:57.607 2025 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:2E:87:09:6C:8D:42:AA:9B:86:66:46:E8:
48:7E:51:4B:9B:D8:50:BC:BF:E0:BA:75:92:A3:E5:14:
AB:C0:F8:A7:02:21:00:F7:96:B0:0F:7F:A1:33:C9:C6:
70:6A:06:69:65:5C:32:C9:6A:00:82:41:EF:37:11:3A:
8E:CF:BD:4B:9D:4D:CC
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 7D:59:1E:12:E1:78:2A:7B:1C:61:67:7C:5E:FD:F8:D0:
87:5C:14:A0:4E:95:9E:B9:03:2F:D9:0E:8C:2E:79:B8
Timestamp : Jun 7 10:55:57.579 2025 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:21:00:9B:9F:80:BD:85:D4:D6:AF:5D:58:7A:
76:0E:A1:07:FD:0C:55:8A:65:12:B9:06:8B:EC:AD:6D:
92:B3:8E:6B:1B:02:20:73:58:7E:DF:DE:5F:A2:6B:7A:
3E:D1:41:B1:20:5E:C4:23:75:E7:4E:52:93:93:C9:13:
DF:87:BB:A0:9C:4B:74
Signature Algorithm: ecdsa-with-SHA256
Signature Value:
30:45:02:20:2c:1d:f4:c0:5d:9f:c6:2f:9f:1f:be:97:91:91:
5b:ee:03:42:de:92:55:45:bf:13:e6:51:21:cf:9c:db:a4:7d:
02:21:00:c3:b0:70:fb:8b:0e:37:aa:b7:a1:bd:74:5a:27:30:
07:b0:93:66:33:0d:c8:27:17:0f:81:f5:ec:c8:f9:48:ba
-----BEGIN CERTIFICATE-----
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Fw+B9ezI+Ui6
-----END CERTIFICATE-----