SSL-Tools

SSL check results of silviosiefke.de

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Discover if the mail servers for silviosiefke.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 Wed, 09 Jul 2025 00:30:14 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
finnland.sisi-systems.ovh
2a01:4f9:c011:acb7::1
 10
supported
finnland.sisi-systems.ovh
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
11 s
finnland.sisi-systems.ovh
65.21.6.221
 10
supported
finnland.sisi-systems.ovh
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
9 s
west-na.sisi-systems.ovh
2a01:4ff:1f0:ccb3::1
Results incomplete
20 not checked
DANE
errors
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s
west-na.sisi-systems.ovh
5.78.44.220
 20
supported
west-na.sisi-systems.ovh
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
22 s

Outgoing Mails

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

Certificates

First seen at:

CN=west-na.sisi-systems.ovh

Certificate chain
  • west-na.sisi-systems.ovh
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • west-na.sisi-systems.ovh
Alternative Names
  • west-na.sisi-systems.ovh
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2025-06-30
Not valid after
2025-09-28
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
B7:BB:C6:1B:BC:BC:E1:BA:D4:5C:51:97:1E:74:32:88:09:E7:24:E7:FF:8C:6E:2C:D6:A9:6B:3A:A1:4D:60:97
SHA1
9A:16:94:6B:33:01:86:62:6B:59:84:3F:60:98:FB:AB:77:05:30:C6
X509v3 extensions
subjectKeyIdentifier
  • D0:46:30:B8:BC:7A:F9:46:7E:54:31:84:11:1D:61:C7:C5:BD:E8:2B
authorityKeyIdentifier
  • keyid:BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
  • CA Issuers - URI:http://r10.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r10.c.lencr.org/11.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 7D:59:1E:12:E1:78:2A:7B:1C:61:67:7C:5E:FD:F8:D0:
  • 87:5C:14:A0:4E:95:9E:B9:03:2F:D9:0E:8C:2E:79:B8
  • Timestamp : Jul 1 00:05:34.839 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:66:9E:70:ED:3A:F7:51:1D:3B:29:9E:AE:
  • F9:95:8F:24:53:82:16:E7:5D:25:AC:86:9C:A8:B9:47:
  • 95:2C:91:9D:02:20:70:BA:32:91:F2:4C:86:BE:6E:56:
  • 3C:A4:11:13:72:10:F8:8E:59:D3:FC:2C:6F:CF:03:74:
  • 9F:66:A2:E7:C2:11
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : DD:DC:CA:34:95:D7:E1:16:05:E7:95:32:FA:C7:9F:F8:
  • 3D:1C:50:DF:DB:00:3A:14:12:76:0A:2C:AC:BB:C8:2A
  • Timestamp : Jul 1 00:05:34.879 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:DB:A2:2F:91:05:0E:04:01:93:D4:A6:
  • 57:31:6E:38:63:D1:C4:D4:50:F5:C0:42:EF:37:73:96:
  • C6:96:DE:0C:8B:02:20:42:AC:B0:61:37:CA:CB:94:09:
  • 56:8C:59:35:6E:46:69:49:72:2A:31:F1:D7:67:31:73:
  • 78:BE:58:34:B9:D5:75
First seen at:

CN=finnland.sisi-systems.ovh

Certificate chain
  • finnland.sisi-systems.ovh
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R11
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • finnland.sisi-systems.ovh
Alternative Names
  • finnland.sisi-systems.ovh
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R11
validity period
Not valid before
2025-06-21
Not valid after
2025-09-19
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
10:19:74:E6:EA:8A:3E:EA:7E:69:93:17:84:79:0C:3D:43:89:10:E1:E9:95:2D:E3:D5:B8:6E:59:FB:C8:99:12
SHA1
86:2B:A3:3E:7B:43:A1:0B:39:68:A2:53:BD:8E:E9:07:6E:CA:08:31
X509v3 extensions
subjectKeyIdentifier
  • B7:E3:FB:DC:8D:48:B8:DA:96:9E:AF:B3:9A:11:8F:1A:D4:27:BC:7D
authorityKeyIdentifier
  • keyid:C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
  • CA Issuers - URI:http://r11.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
crlDistributionPoints
  • Full Name:
  • URI:http://r11.c.lencr.org/64.crl
ct_precert_scts
  • 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 : Jun 21 07:33:18.400 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:A4:00:2A:07:4C:D7:C1:0E:58:85:66:
  • BA:6F:F9:AB:F7:EB:3D:55:66:2A:6A:7E:61:AF:2E:A5:
  • CE:12:F9:D9:BC:02:21:00:F2:E5:D8:BF:55:B1:75:44:
  • 86:79:3F:EF:9D:CB:53:D4:FF:94:CB:AC:AD:94:A5:2A:
  • A5:3E:97:AD:D4:FE:72:93
  • 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 : Jun 21 07:33:18.593 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:34:77:FE:A6:DA:4C:31:DF:79:38:B6:4C:
  • B6:42:25:82:0F:70:11:9E:08:59:F3:51:BF:DF:AC:50:
  • 31:34:E8:60:02:20:00:B1:9A:93:38:59:97:B4:93:26:
  • 90:68:F8:22:2D:AF:9B:56:C5:9E:35:8A:C1:C9:5F:07:
  • 5E:44:E1:E7:25:3D

DANE

DNS-based Authentication of Named Entities (DANE) is a protocol to allow X.509 certificates to be bound to DNS using TLSA records and DNSSEC.

Name Options DNSSEC Matches
_25._tcp.west-na.sisi-systems.ovh
  • DANE-EE: Domain Issued Certificate
  • Use full certificate
  • SHA-256 Hash
valid
valid
_25._tcp.finnland.sisi-systems.ovh
  • DANE-EE: Domain Issued Certificate
  • Use full certificate
  • SHA-256 Hash
valid
valid