SSL-Tools

SSL check results of kuschku.de

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Discover if the mail servers for kuschku.de can be reached through a secure connection.

To establish a secure connection a mail server has to offer STARTTLS (SSL), a trustworthy SSL certificate, support for the Diffie-Hellman-Algorithm to guarantee Perfect Forward Secrecy and must not be vulnerable against the Heartbleed attack. Futhermore we recommend using end-to-end encryption with GnuPG.

Summary

JSON Refresh

Report created Sun, 05 Jul 2020 04:05:10 +0000

The mailservers of kuschku.de can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @kuschku.de addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
kuschku.de
2a01:4f8:241:4712::1
 10
supported
kuschku.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
8 s
kuschku.de
116.202.227.171
 10
supported
kuschku.de
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
8 s

Outgoing Mails

We have not received any emails from a @kuschku.de address so far. Test mail delivery

Certificates

First seen at:

CN=kuschku.de

Certificate chain
Subject
Common Name (CN)
  • kuschku.de
Alternative Names
  • *.justjanne.de
  • *.k8r.eu
  • *.kuschku.de
  • *.quasseldroid.info
  • *.s3.kuschku.de
  • justjanne.de
  • k8r.eu
  • kuschku.de
  • quasseldroid.info
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-07-04
Not valid after
2020-10-02
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
63:CD:78:C0:C2:0F:B0:ED:4E:68:50:58:5E:3B:9C:77:B2:CA:61:84:DE:99:B1:3A:2C:AE:7F:06:1F:43:7C:69
SHA1
ED:3A:C2:13:35:53:F1:BA:A5:08:FE:29:20:A7:C1:4F:4D:26:41:10
X509v3 extensions
subjectKeyIdentifier
  • C6:94:BB:17:6F:8E:AA:71:06:01:0A:16:0D:FD:93:F3:43:58:7F:C1
authorityKeyIdentifier
  • keyid:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
authorityInfoAccess
  • OCSP - URI:http://ocsp.int-x3.letsencrypt.org
  • CA Issuers - URI:http://cert.int-x3.letsencrypt.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 : 5E:A7:73:F9:DF:56:C0:E7:B5:36:48:7D:D0:49:E0:32:
  • 7A:91:9A:0C:84:A1:12:12:84:18:75:96:81:71:45:58
  • Timestamp : Jul 4 09:50:31.588 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:D5:40:49:3F:1A:21:69:01:4E:78:B4:
  • 8A:02:74:87:AF:5E:7F:14:CE:CC:DB:6B:FA:FC:9E:99:
  • 4D:2D:F6:6D:53:02:21:00:AA:30:24:DC:F3:32:D6:F3:
  • CA:C3:73:BE:B6:F3:94:3F:3F:EC:B7:52:13:3A:82:DE:
  • 9C:1C:85:95:0F:B8:28:AD
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 07:B7:5C:1B:E5:7D:68:FF:F1:B0:C6:1D:23:15:C7:BA:
  • E6:57:7C:57:94:B7:6A:EE:BC:61:3A:1A:69:D3:A2:1C
  • Timestamp : Jul 4 09:50:31.633 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:F5:E6:49:1B:A4:31:18:0E:71:10:10:
  • C7:28:28:FC:30:B6:4B:0F:AD:21:80:4C:55:AB:56:87:
  • 60:0C:41:61:3B:02:21:00:B9:C5:85:F9:24:47:BC:3F:
  • 54:50:A8:32:DD:08:FB:16:FB:84:02:E7:76:EC:C8:CC:
  • 64:61:F5:1F:26:9B:B4:B7