SSL check results of kunc.tech

NEW You can also bulk check multiple servers.

Discover if the mail servers for kunc.tech 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

Report created Sun, 18 Oct 2020 05:32:25 +0000

The mailservers of kunc.tech can be reached through an encrypted connection.

However, we found problems that may affect the security.

Servers

Incoming Mails

These servers are responsible for incoming mails to @kunc.tech addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.kunc.tech
185.112.165.245
10
supported
kunc.tech
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • ECDHE_RSA_WITH_RC4_128_SHA
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
15 s

Outgoing Mails

We have received emails from these servers with @kunc.tech sender addresses. Test mail delivery

Host TLS Version & Cipher
unknown (185.112.165.245)
TLSv1.2 AECDH-AES256-SHA

Certificates

First seen at:

CN=kunc.tech

Certificate chain
Subject
Common Name (CN)
  • kunc.tech
Alternative Names
  • kunc.tech
  • mail.kunc.tech
  • syn.kunc.tech
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-09-17
Not valid after
2020-12-16
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
83:00:F0:62:33:EE:61:F8:8B:51:2D:65:B5:AB:CE:93:B3:CB:69:C5:B7:6E:04:B1:BD:26:77:C1:E2:CD:0F:21
SHA1
F8:E2:3D:2D:98:AC:0B:92:33:CB:4E:CD:D0:01:3C:14:E3:B3:BE:31
X509v3 extensions
subjectKeyIdentifier
  • E2:17:5D:01:1C:AD:B2:00:80:52:5A:4C:1F:C3:B1:5B:01:B6:61:62
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 : F0:95:A4:59:F2:00:D1:82:40:10:2D:2F:93:88:8E:AD:
  • 4B:FE:1D:47:E3:99:E1:D0:34:A6:B0:A8:AA:8E:B2:73
  • Timestamp : Sep 17 13:07:33.855 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:6A:61:B1:F6:A9:B4:7B:0B:8A:19:98:2B:
  • DF:E8:2F:06:7F:71:85:22:FF:1B:98:89:8D:45:8D:5C:
  • C2:9D:5F:6B:02:20:2E:A0:6D:2D:5D:44:8E:5A:A8:71:
  • 1E:13:5A:12:67:70:52:E5:C1:50:6C:5A:37:EE:28:6E:
  • 7B:94:E0:2E:34:AA
  • 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 : Sep 17 13:07:33.886 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:09:3F:E3:E7:E6:58:16:1A:3E:55:C9:DF:
  • CB:CF:01:06:AA:76:63:45:EA:75:8C:27:EA:0D:6E:6E:
  • 8C:E6:95:15:02:21:00:80:6F:E7:52:E5:38:EC:71:31:
  • F5:D4:0B:B6:B4:12:5B:89:FA:FB:CA:99:59:32:4F:F3:
  • E6:34:4C:6F:25:BD:7C