SSL-Tools

SSL check results of prfreeonline.com

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Discover if the mail servers for prfreeonline.com 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 Mon, 19 May 2025 00:31:17 +0000

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

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.prfreeonline.com
27.254.134.26
 10
supported
prfreeonline.com
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
10 s

Outgoing Mails

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

Certificates

First seen at:

CN=prfreeonline.com

Certificate chain
  • prfreeonline.com
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
      • R10
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • prfreeonline.com
Alternative Names
  • *.prfreeonline.com
  • prfreeonline.com
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R10
validity period
Not valid before
2025-03-20
Not valid after
2025-06-18
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
E2:A5:91:7E:E9:40:57:E4:6F:CE:C8:54:F7:DB:C4:50:FF:0F:35:7D:04:DD:87:60:FC:6B:49:95:F7:42:97:79
SHA1
19:1A:7B:49:9F:F3:02:B1:50:B7:4B:CC:70:A1:8C:B1:B2:93:D2:8F
X509v3 extensions
subjectKeyIdentifier
  • 45:41:C1:25:DA:0F:B0:32:11:69:DB:D9:B2:31:98:6C:EE:EE:C1:D0
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
crlDistributionPoints
  • Full Name:
  • URI:http://r10.c.lencr.org/91.crl
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A2:E3:0A:E4:45:EF:BD:AD:9B:7E:38:ED:47:67:77:53:
  • D7:82:5B:84:94:D7:2B:5E:1B:2C:C4:B9:50:A4:47:E7
  • Timestamp : Mar 20 09:35:15.487 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:DB:D1:3A:B8:DC:DB:22:52:36:06:DF:
  • 7C:D7:D6:77:B1:F5:81:96:4B:88:F8:4D:08:F4:E6:AD:
  • 35:35:76:B1:D6:02:21:00:FE:AB:7B:55:3C:55:9E:64:
  • 99:CF:F6:40:D2:B2:84:E2:4A:A3:DB:77:C7:ED:98:53:
  • DD:1A:63:A6:DB:20:9A:DB
  • 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 : Mar 20 09:35:15.495 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:E2:0B:26:CA:38:E3:F9:78:6A:54:1B:
  • B1:C5:42:5D:F5:F1:3A:DD:A6:1A:B0:83:E2:5D:0D:D5:
  • 83:67:B4:C0:2C:02:20:46:49:94:4A:56:67:F9:6E:F4:
  • 02:C6:A3:7E:D1:BB:A8:28:5E:86:7E:D9:B0:60:74:EF:
  • 23:30:A7:2E:79:52:7E

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.mail.prfreeonline.com
  • DANE-EE: Domain Issued Certificate
  • Use full certificate
  • SHA-256 Hash
error
Debug
valid