Certificate chain
- 
server1.comm4server.de
- 
remaining
 
- 3072 bit
 
- sha256WithRSAEncryption
 
- 
R3
- 
remaining
 
- 2048 bit
 
- sha256WithRSAEncryption
 
- 
DST Root CA X3
(Certificate is self-signed.)
- 
remaining
 
- 2048 bit
 
- sha1WithRSAEncryption
 
 
 
 
Subject
- Common Name (CN)
 
- 
 
- Alternative Names
 
- 
- 
mail.comm4server.de
 
- 
mail.concept-berlin.de
 
- 
mail.fis-kultur.de
 
- 
mail.fis-kultur.net
 
- 
mail.lotse-berlin.de
 
- 
server1.comm4server.de
 
 
Issuer
- Country (C)
 
- 
 
- Organization (O)
 
- 
 
- Common Name (CN)
 
- 
 
validity period
- Not valid before
 
- 2021-07-18
 
- Not valid after
 
- 2021-10-16
 
This certifcate has been verified for the following usages:
- Digital Signature
 
- Key Encipherment
 
- TLS Web Server Authentication
 
- TLS Web Client Authentication
 
Fingerprints
- SHA256
 
- 94:7F:6F:45:3D:44:0E:80:A8:39:40:70:02:21:CE:BF:A8:E9:B3:01:07:15:01:63:2D:78:FD:C3:33:D8:37:B0
 
- SHA1
 
- C0:DA:1F:F4:10:BB:4A:BC:69:8B:29:C4:9E:8C:6A:C9:53:D1:D4:D3
 
X509v3 extensions
- subjectKeyIdentifier
 
- 
- 90:3C:E1:D1:1B:8D:0F:82:4F:8F:EC:13:9E:21:26:83:60:28:59:6C
 
 
- authorityKeyIdentifier
 
- 
- keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
 
 
- authorityInfoAccess
 
- 
- OCSP - URI:http://r3.o.lencr.org
 
- CA Issuers - URI:http://r3.i.lencr.org/
 
 
- certificatePolicies
 
- 
- Policy: 2.23.140.1.2.1
 
- Policy: 1.3.6.1.4.1.44947.1.1.1
 
- CPS: http://cps.letsencrypt.org
 
 
- ct_precert_scts
 
- 
- Signed Certificate Timestamp:
 
- Version   : v1 (0x0)
 
- Log ID    : F6:5C:94:2F:D1:77:30:22:14:54:18:08:30:94:56:8E:
 
- E3:4D:13:19:33:BF:DF:0C:2F:20:0B:CC:4E:F1:64:E3
 
- Timestamp : Jul 19 00:17:30.227 2021 GMT
 
- Extensions: none
 
- Signature : ecdsa-with-SHA256
 
- 30:44:02:20:0E:09:07:D4:A1:EC:A1:C8:BC:77:34:8E:
 
- 03:1F:A9:AA:E9:A9:0B:CF:43:CE:9E:4B:60:B6:A2:AE:
 
- 2C:02:C2:70:02:20:65:F1:D4:0D:45:DA:4C:9B:29:72:
 
- F6:5E:62:BB:97:2F:19:FE:31:43:68:87:C5:63:FA:9A:
 
- 06:DF:6F:C8:C1:6F
 
- Signed Certificate Timestamp:
 
- Version   : v1 (0x0)
 
- Log ID    : 6F:53:76:AC:31:F0:31:19:D8:99:00:A4:51:15:FF:77:
 
- 15:1C:11:D9:02:C1:00:29:06:8D:B2:08:9A:37:D9:13
 
- Timestamp : Jul 19 00:17:30.261 2021 GMT
 
- Extensions: none
 
- Signature : ecdsa-with-SHA256
 
- 30:45:02:21:00:94:C3:FB:7D:2A:CF:20:6C:C3:66:37:
 
- 4C:44:AF:7A:9E:BF:DD:0F:78:1D:31:95:F9:89:B5:C9:
 
- 11:0E:7D:D5:08:02:20:2D:23:CB:A5:D3:30:7F:5A:A8:
 
- EB:55:B7:BA:43:9C:54:BF:FB:D2:31:F9:45:AD:70:19:
 
- 6D:FB:90:51:CC:A8:43