SSL-Tools

SSL check results of cermcontroletecnico.com.br

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Discover if the mail servers for cermcontroletecnico.com.br 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, 29 Mar 2025 10:07:24 +0000

The mailservers of cermcontroletecnico.com.br can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @cermcontroletecnico.com.br addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.cermcontroletecnico.com.br
108.167.188.129
 0
supported
*.cermcontroletecnico.com.br
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
42 s

Outgoing Mails

We have not received any emails from a @cermcontroletecnico.com.br address so far. Test mail delivery

Certificates

First seen at:

CN=*.cermcontroletecnico.com.br

Certificate chain
  • *.cermcontroletecnico.com.br
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • *.cermcontroletecnico.com.br
Alternative Names
  • *.cermcontroletecnico.com.br
  • cermcontroletecnico.com.br
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2025-01-26
Not valid after
2025-04-26
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
71:1F:85:F7:F8:FA:EB:7A:68:D3:C8:20:8E:79:05:17:A1:EE:FD:C5:A9:06:35:43:BA:33:AC:2A:5C:25:1D:3F
SHA1
A0:13:75:8E:96:B2:D3:16:B1:D0:9A:25:7C:F0:A4:32:AE:CD:B5:C7
X509v3 extensions
subjectKeyIdentifier
  • 91:E3:EC:9E:48:85:C8:DC:D8:25:39:CC:1B:2B:32:39:EC:74:0B:7D
authorityKeyIdentifier
  • keyid:BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
  • OCSP - URI:http://r10.o.lencr.org
  • CA Issuers - URI:http://r10.i.lencr.org/
certificatePolicies
  • Policy: 2.23.140.1.2.1
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : CF:11:56:EE:D5:2E:7C:AF:F3:87:5B:D9:69:2E:9B:E9:
  • 1A:71:67:4A:B0:17:EC:AC:01:D2:5B:77:CE:CC:3B:08
  • Timestamp : Jan 26 20:05:52.498 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:96:5C:76:91:FA:49:AF:3D:60:88:B2:
  • A8:FA:E3:9D:57:69:93:93:C3:D0:E6:64:98:8B:BB:B5:
  • EB:CA:E7:39:86:02:20:4F:FF:A7:70:05:85:34:BE:28:
  • E0:18:0B:D0:BC:83:FD:F2:84:F3:A4:ED:11:4E:77:AB:
  • 02:F7:E9:98:9C:34:80
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 13:4A:DF:1A:B5:98:42:09:78:0C:6F:EF:4C:7A:91:A4:
  • 16:B7:23:49:CE:58:57:6A:DF:AE:DA:A7:C2:AB:E0:22
  • Timestamp : Jan 26 20:05:52.638 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:6B:73:BA:52:62:EA:18:6B:7A:E4:9E:3D:
  • 40:60:F9:20:D3:5E:83:EA:9D:24:8C:C3:6D:FF:9B:52:
  • 6A:AB:43:03:02:21:00:BA:F3:8B:54:AE:F5:F6:56:EF:
  • 69:90:10:B6:98:4C:3E:49:67:36:B1:36:92:E8:04:2F:
  • 0B:89:37:06:69:EB:81