SSL-Tools

SSL check results of premierpractice.co.uk

NEW You can also bulk check multiple servers.

Discover if the mail servers for premierpractice.co.uk 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

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Report created Tue, 20 Sep 2022 13:56:02 +0000

We can not guarantee a secure connection to the mailservers of premierpractice.co.uk!

Please contact the operator of premierpractice.co.uk and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/premierpractice.co.uk

Servers

Incoming Mails

These servers are responsible for incoming mails to @premierpractice.co.uk addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
sxb1plzcpnl489895.prod.sxb1.secureserver.net
92.205.12.185
Results incomplete
0
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mail.protonmail.ch
176.119.200.128
 10
supported
protonmail.com
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
37 s
mail.protonmail.ch
185.205.70.128
 10
supported
protonmail.com
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
37 s
mail.protonmail.ch
185.70.42.128
 10
supported
protonmail.com
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
24 s
mailsec.protonmail.ch
176.119.200.129
 20
supported
protonmail.com
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
13 s
mailsec.protonmail.ch
185.70.42.129
 20
supported
protonmail.com
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
13 s
mailsec.protonmail.ch
185.205.70.129
 20
supported
protonmail.com
DANE
valid
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
8 s

Outgoing Mails

We have not received any emails from a @premierpractice.co.uk address so far. Test mail delivery

Certificates

First seen at:

CN=protonmail.com

Certificate chain
  • protonmail.com
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
      • R3
        • remaining
        • 2048 bit
        • sha256WithRSAEncryption
          • ISRG Root X1 (Certificate is self-signed.)
            • remaining
            • 4096 bit
            • sha256WithRSAEncryption
Subject
Common Name (CN)
  • protonmail.com
Alternative Names
  • *.pm.me
  • *.protonmail.ch
  • *.protonmail.com
  • *.protonvpn.ch
  • *.protonvpn.com
  • protonmail.com
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • R3
validity period
Not valid before
2022-09-08
Not valid after
2022-12-07
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
5F:B2:64:D6:9B:5D:F1:1B:19:88:7C:18:17:ED:F1:1A:B9:F0:44:4A:A6:0C:4F:92:A4:48:7D:80:40:2B:F9:76
SHA1
8F:0C:82:A7:B4:FB:4C:D6:83:18:53:73:55:F3:9C:91:7A:32:48:C8
X509v3 extensions
subjectKeyIdentifier
  • 33:36:13:CB:1C:5C:7A:BD:79:9C:FB:E5:1D:DB:AB:5F:C6:66:41:06
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
  • Policy: 1.3.6.1.4.1.44947.1.1.1
  • CPS: http://cps.letsencrypt.org
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 41:C8:CA:B1:DF:22:46:4A:10:C6:A1:3A:09:42:87:5E:
  • 4E:31:8B:1B:03:EB:EB:4B:C7:68:F0:90:62:96:06:F6
  • Timestamp : Sep 8 14:11:30.296 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:E9:B1:0B:FE:B3:83:96:E9:CE:05:50:
  • 55:E4:C0:6C:4A:AA:D7:DB:AE:81:B9:E0:5E:7C:B3:CC:
  • B6:35:E2:1F:E0:02:21:00:FF:0E:EB:AA:34:BD:57:AF:
  • B0:AA:57:69:C5:EC:9C:67:DF:1E:D4:DC:6C:22:67:64:
  • 48:A8:83:53:7D:FB:CF:49
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 46:A5:55:EB:75:FA:91:20:30:B5:A2:89:69:F4:F3:7D:
  • 11:2C:41:74:BE:FD:49:B8:85:AB:F2:FC:70:FE:6D:47
  • Timestamp : Sep 8 14:11:30.301 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:8F:0C:37:4F:5F:31:C3:F8:CC:82:37:
  • 61:41:61:E8:9D:D5:FC:FE:6F:7E:E5:C0:B6:E9:5F:53:
  • 74:4C:7A:54:33:02:20:26:E9:9C:E8:66:71:69:A9:DB:
  • 8F:A4:68:ED:72:C2:FD:17:0F:00:EA:7D:01:39:59:FD:
  • 17:79:09:68:C4:9C:FF

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.protonmail.ch
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
valid
_25._tcp.mail.protonmail.ch
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
—
_25._tcp.mailsec.protonmail.ch
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
valid
_25._tcp.mailsec.protonmail.ch
  • DANE-EE: Domain Issued Certificate
  • Use subject public key
  • SHA-256 Hash
valid
—