SSL-Tools

SSL check results of kshgroup.kr

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Discover if the mail servers for kshgroup.kr 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 Thu, 28 Mar 2024 09:15:53 +0000

The mailservers of kshgroup.kr can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @kshgroup.kr addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
kshgroup.kr
15.164.167.134
 -
supported
kshgroup.kr
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
15 s

Outgoing Mails

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

Certificates

First seen at:

CN=kshgroup.kr

Certificate chain
  • kshgroup.kr
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • kshgroup.kr
Alternative Names
  • kshgroup.kr
  • www.kshgroup.kr
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2024-03-03
Not valid after
2024-06-01
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
31:83:36:41:C5:5A:88:9B:B3:7D:E1:FF:41:CA:AB:FC:A7:BB:3F:87:3B:A6:31:A0:3F:D5:09:82:42:AB:7C:21
SHA1
C4:90:23:F1:42:1C:A7:EF:3F:8E:01:F9:EE:62:4C:5B:F3:2F:04:33
X509v3 extensions
subjectKeyIdentifier
  • 11:A5:73:AC:7D:80:62:53:0D:3C:25:9C:4B:88:3E:4C:A8:1F:34:37
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
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 3B:53:77:75:3E:2D:B9:80:4E:8B:30:5B:06:FE:40:3B:
  • 67:D8:4F:C3:F4:C7:BD:00:0D:2D:72:6F:E1:FA:D4:17
  • Timestamp : Mar 3 05:58:13.361 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:1E:DB:BE:C3:38:CC:75:EA:FE:D0:50:36:
  • 82:FF:2D:F8:B0:EE:A6:8C:D6:AA:C1:8D:98:3E:D2:CB:
  • DD:CE:A8:C9:02:20:5E:C9:86:30:C3:AE:3A:81:98:40:
  • 93:43:04:78:63:0F:50:16:E3:66:09:FD:88:09:CC:C7:
  • DA:E6:76:5E:9B:1F
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 76:FF:88:3F:0A:B6:FB:95:51:C2:61:CC:F5:87:BA:34:
  • B4:A4:CD:BB:29:DC:68:42:0A:9F:E6:67:4C:5A:3A:74
  • Timestamp : Mar 3 05:58:13.443 2024 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:B1:57:40:E1:0B:42:4B:7B:53:87:1C:
  • BF:BD:9D:47:17:40:D3:46:57:8F:DA:EA:C8:C2:86:6A:
  • 94:48:15:3C:77:02:20:2C:1A:9A:50:55:39:89:3D:91:
  • 08:CE:15:E5:77:11:5D:7C:74:D7:75:4C:68:8A:24:93:
  • AE:B1:F6:29:AA:46:76