API
This service provide certificate information from hostname: may.arbitrary.ch

Certificate:
Data:
Version: 3 (0x2)
Serial Number:
05:9b:0e:ba:32:da:f3:8e:bb:1b:d9:08:8e:e3:5a:26:6c:a9
Signature Algorithm: ecdsa-with-SHA384
Issuer: C = US, O = Let's Encrypt, CN = E5
Validity
Not Before: May 22 20:23:37 2025 GMT
Not After : Aug 20 20:23:36 2025 GMT
Subject: CN = arbitrary.ch
Subject Public Key Info:
Public Key Algorithm: id-ecPublicKey
Public-Key: (384 bit)
pub:
04:79:78:dc:6c:fe:0a:fc:39:ca:c9:04:75:24:c8:
98:7b:56:80:6d:0e:3e:e3:ea:d1:7b:c5:c6:02:07:
74:a6:01:11:ca:4a:8a:f9:73:9b:d2:92:bd:91:82:
d2:56:8d:28:aa:5a:27:77:83:95:30:f2:bf:70:77:
fa:6e:2c:cf:ad:71:2e:80:f6:1b:fd:2c:4e:f5:b4:
54:a2:ed:be:9b:d4:38:83:a8:10:ff:81:ca:e3:99:
9b:93:cf:50:30:95:ad
ASN1 OID: secp384r1
NIST CURVE: P-384
X509v3 extensions:
X509v3 Key Usage: critical
Digital Signature
X509v3 Extended Key Usage:
TLS Web Server Authentication, TLS Web Client Authentication
X509v3 Basic Constraints: critical
CA:FALSE
X509v3 Subject Key Identifier:
BC:17:18:5F:D8:F2:B4:7F:85:17:D7:F4:08:13:57:73:1D:5E:49:43
X509v3 Authority Key Identifier:
9F:2B:5F:CF:3C:21:4F:9D:04:B7:ED:2B:2C:C4:C6:70:8B:D2:D7:0D
Authority Information Access:
CA Issuers - URI:http://e5.i.lencr.org/
X509v3 Subject Alternative Name:
DNS:arbitrary.ch, DNS:mta-sts.arbitrary.ch, DNS:www.arbitrary.ch
X509v3 Certificate Policies:
Policy: 2.23.140.1.2.1
X509v3 CRL Distribution Points:
Full Name:
URI:http://e5.c.lencr.org/42.crl
CT Precertificate SCTs:
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : A4:42:C5:06:49:60:61:54:8F:0F:D4:EA:9C:FB:7A:2D:
26:45:4D:87:A9:7F:2F:DF:45:59:F6:27:4F:3A:84:54
Timestamp : May 22 21:22:07.853 2025 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:37:F3:FA:26:62:9E:D2:7F:C5:69:EA:61:
1B:94:35:4C:51:9B:42:15:B3:9A:5D:D6:FE:67:B5:91:
1B:22:CC:FA:02:20:0D:6B:4B:72:7A:6B:B9:2D:3E:C5:
0A:5C:42:6D:EA:AE:69:DE:A6:B8:B3:0B:4E:5E:FA:0C:
FA:AD:DA:30:79:EB
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 0D:E1:F2:30:2B:D3:0D:C1:40:62:12:09:EA:55:2E:FC:
47:74:7C:B1:D7:E9:30:EF:0E:42:1E:B4:7E:4E:AA:34
Timestamp : May 22 21:22:09.853 2025 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:6A:D0:72:06:BD:81:67:3F:3F:82:87:9E:
ED:C7:56:38:29:96:C9:C3:D8:4F:D7:F2:3D:05:66:9E:
E7:DE:63:BE:02:20:0C:F1:D6:52:FB:A2:3A:29:61:B9:
2E:7E:23:30:6A:4F:CC:34:A4:D4:04:44:B7:E1:94:D7:
32:EC:A3:8B:67:92
Signature Algorithm: ecdsa-with-SHA384
Signature Value:
30:65:02:30:32:02:40:69:d2:a8:37:5a:83:cf:87:4a:46:aa:
56:93:e0:1e:74:07:17:69:df:46:79:b1:a6:66:9b:09:39:e5:
82:2e:fb:66:cf:0b:7b:28:8b:a2:47:08:be:e1:2f:2e:02:31:
00:ce:d4:5f:31:31:22:5d:d8:8f:3b:51:34:2a:83:99:fe:16:
6f:06:9c:21:b6:72:25:96:36:80:19:0c:71:9b:0d:c9:df:3f:
81:7d:01:25:6e:50:d4:80:b9:2e:ea:11:bc
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----