SSL-Tools

SSL check results of byte.ci

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Discover if the mail servers for byte.ci 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 Sat, 14 Jun 2025 19:43:34 +0000

The mailservers of byte.ci can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @byte.ci addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.byte.ci
2a01:4f9:3070:2b46:3af7:66ea:ea75:e590
 0
supported
mail.byte.ci
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
8 s
mail.byte.ci
135.181.188.103
 0
supported
mail.byte.ci
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 @byte.ci address so far. Test mail delivery

Certificates

First seen at:

CN=mail.byte.ci

Certificate chain
  • mail.byte.ci
    • remaining
    • 256 bit
    • ecdsa-with-SHA384
      • E6
        • remaining
        • 384 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • mail.byte.ci
Alternative Names
  • mail.byte.ci
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • E6
validity period
Not valid before
2025-05-16
Not valid after
2025-08-14
This certifcate has been verified for the following usages:
  • Digital Signature
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
EF:C2:17:EB:30:80:D3:FE:17:2E:A3:27:B9:E9:71:6D:68:00:98:B2:D5:1D:FD:D2:B1:81:0F:36:91:5F:1F:84
SHA1
1B:65:44:DC:99:E4:01:E7:40:B7:6E:18:E5:29:FA:64:C6:5B:3D:FE
X509v3 extensions
subjectKeyIdentifier
  • E6:67:94:7E:61:9B:5A:8F:6D:EC:33:91:80:B9:F5:C1:E3:1E:48:34
authorityKeyIdentifier
  • keyid:93:27:46:98:03:A9:51:68:8E:98:D6:C4:42:48:DB:23:BF:58:94:D2
authorityInfoAccess
  • CA Issuers - URI:http://e6.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://e6.c.lencr.org/20.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : ED:3C:4B:D6:E8:06:C2:A4:A2:00:57:DB:CB:24:E2:38:
  • 01:DF:51:2F:ED:C4:86:C5:70:0F:20:DD:B7:3E:3F:E0
  • Timestamp : May 16 11:45:48.634 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:54:CE:23:05:4E:F1:BF:BE:F4:00:8D:31:
  • 2B:B1:C4:A2:F5:04:93:1C:39:63:84:B8:FE:92:53:96:
  • 78:15:8A:6D:02:21:00:F3:1A:ED:93:04:BB:36:D9:D6:
  • 6C:33:70:F0:43:D9:BD:2C:12:EE:14:25:06:04:0E:0F:
  • 17:63:36:BB:AC:83:6A
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 12:F1:4E:34:BD:53:72:4C:84:06:19:C3:8F:3F:7A:13:
  • F8:E7:B5:62:87:88:9C:6D:30:05:84:EB:E5:86:26:3A
  • Timestamp : May 16 11:45:48.651 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:B2:3D:5E:98:12:A4:AF:44:DF:F3:B4:
  • 24:80:10:DC:56:7F:AD:90:DF:79:CC:EE:46:7B:6F:60:
  • 11:E0:74:D9:22:02:20:50:C9:98:FF:3F:64:73:4D:95:
  • 96:FC:74:3C:0D:C0:AD:AF:96:39:51:CA:59:6E:C4:F3:
  • 39:6F:6D:63:21:0F:20