SSL-Tools

mail.schulen-koeln.de

CN=mail.schulen-koeln.de

Fingerprints: c8c9ca19d0

Issuer:
CN=E5,O=Let's En­crypt,C=US
Serial:
2758163760391517­7148387385316513­8226459608
Not valid before:
2025-01-01 08:01­:40 UTC
Not valid after:
2025-04-01 08:01­:39 UTC
Key size:
384
Signature Algorithm:
ecdsa-with-SHA38­4
keyUsage:
Digital Signatur­e
extendedKeyUsage:
TLS Web Server A­uthentication, T­LS Web Client Au­thentication
basicConstraints:
CA:FALSE
subjectKeyIdentifier:
04:7C:AE:A5:A7:2­1:0D:E7:C0:66:9F­:40:DF:45:C8:86:­98:3E:5F:F4
authorityKeyIdentifier:
keyid:9F:2B:5F:C­F:3C:21:4F:9D:04­:B7:ED:2B:2C:C4:­C6:70:8B:D2:D7:0­D
authorityInfoAccess:
OCSP - URI:http:­//e5.o.lencr.org­CA Issuers - URI­:http://e5.i.len­cr.org/
subjectAltName:
DNS:mail.schulen­-koeln.de
certificatePolicies:
Policy: 2.23.140­.1.2.1
ct_precert_scts:
Signed Certifica­te Timestamp:­ Version : ­v1 (0x0)­ Log ID : ­CC:FB:0F:6A:85:7­1:09:65:FE:95:9B­:53:CE:E9:B2:7C:­ ­22:E9:85:5C:0D:9­7:8D:B6:A9:7E:54­:C0:FE:4C:0D:B0­ Timestamp : ­Jan 1 09:00:10.­080 2025 GMT­ Extensions: ­none­ Signature : ­ecdsa-with-SHA25­6­ ­30:44:02:20:07:6­B:11:DD:63:E9:B7­:86:2F:00:3B:E6:­ ­95:87:74:6B:68:F­1:F6:37:ED:2A:E1­:C8:61:8D:A7:F4:­ ­D9:67:5A:46:02:2­0:68:CB:7C:7D:50­:D2:39:64:F1:EE:­ ­94:AE:DD:27:5D:9­8:76:8E:E6:67:D0­:E8:9F:65:A2:7F:­ ­89:77:F4:A7:9C:D­0­Signed Certifica­te Timestamp:­ Version : ­v1 (0x0)­ Log ID : ­CF:11:56:EE:D5:2­E:7C:AF:F3:87:5B­:D9:69:2E:9B:E9:­ ­1A:71:67:4A:B0:1­7:EC:AC:01:D2:5B­:77:CE:CC:3B:08­ Timestamp : ­Jan 1 09:00:10.­102 2025 GMT­ Extensions: ­none­ Signature : ­ecdsa-with-SHA25­6­ ­30:46:02:21:00:8­4:28:03:57:7A:39­:3D:4A:7F:84:27:­ ­3D:56:1B:5C:74:6­D:12:7C:C5:4F:96­:6D:E7:AA:D1:53:­ ­19:5F:FF:16:57:0­2:21:00:DE:5B:1B­:3C:91:E7:78:28:­ ­A6:85:D3:FD:87:C­C:34:F3:AB:A1:77­:1A:B5:2C:6C:5F:­ ­92:84:13:D1:23:C­C:0A:AB

Certificates

Fingerprint Issuer Serial Public Key Download Tools
c8c9­ca19­d0fc­8478­8ee1­1152­e9ea­8b2d­770f­8dc0 E5 2758­1637­6039­1517­7148­3873­8531­6513­8226­4596­08 c8c9ca19d0
PEM TXT JSON
TLSA