SSL-Tools

SSL check results of ulttk.ru

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Discover if the mail servers for ulttk.ru 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, 29 Jun 2020 11:01:40 +0000

No connection to the mailservers of ulttk.ru could be established.

Servers

Incoming Mails

These servers are responsible for incoming mails to @ulttk.ru addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
s2.ulttk.ru
2a00:1138:0:2::2:53
Results incomplete
10
supported
s2.ulttk.ru
DANE
missing
PFS
unsupported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
3 s
s2.ulttk.ru
79.132.98.154
Results incomplete
10
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s

Outgoing Mails

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

Certificates

First seen at:

CN=s2.ulttk.ru

Certificate chain
  • s2.ulttk.ru
    • remaining
    • 4096 bit
    • sha256WithRSAEncryption
    • Unknown Authority
      Let's Encrypt Authority X3
Subject
Common Name (CN)
  • s2.ulttk.ru
Alternative Names
  • as112.ulttk.ru
  • ipv6.ulttk.ru
  • lg.ulttk.ru
  • s2.ulttk.ru
  • speed.ulttk.ru
  • speedtest.ulttk.ru
  • test.ulttk.ru
  • ulttk.ru
  • www.ulttk.ru
Issuer
Country (C)
  • US
Organization (O)
  • Let's Encrypt
Common Name (CN)
  • Let's Encrypt Authority X3
validity period
Not valid before
2020-05-08
Not valid after
2020-08-06
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
24:21:BE:F9:6F:C9:23:61:72:5A:7A:2B:7F:11:A9:69:96:96:5D:B8:4F:55:EE:7B:71:CB:B9:30:5D:0F:11:78
SHA1
B2:9F:00:E4:C7:FA:B9:5C:CC:83:8F:2A:65:47:99:49:0B:DC:35:6F
X509v3 extensions
subjectKeyIdentifier
  • 05:C7:47:86:1C:92:0F:15:F0:E8:74:55:0B:A5:AD:A9:57:10:AA:8A
authorityKeyIdentifier
  • keyid:A8:4A:6A:63:04:7D:DD:BA:E6:D1:39:B7:A6:45:65:EF:F3:A8:EC:A1
authorityInfoAccess
  • OCSP - URI:http://ocsp.int-x3.letsencrypt.org
  • CA Issuers - URI:http://cert.int-x3.letsencrypt.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 : F0:95:A4:59:F2:00:D1:82:40:10:2D:2F:93:88:8E:AD:
  • 4B:FE:1D:47:E3:99:E1:D0:34:A6:B0:A8:AA:8E:B2:73
  • Timestamp : May 9 00:21:39.001 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:50:30:6C:32:94:2C:C4:46:05:B4:23:2C:
  • 55:7F:BB:97:65:C4:5E:62:95:9C:BD:AC:6F:D9:9D:38:
  • 72:3C:5C:87:02:21:00:A6:ED:11:80:38:2D:63:F6:A8:
  • 7F:8E:C6:D4:2D:97:38:DC:91:A3:27:DD:69:9B:F7:CC:
  • 05:CA:6B:E7:D9:AA:FC
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : B2:1E:05:CC:8B:A2:CD:8A:20:4E:87:66:F9:2B:B9:8A:
  • 25:20:67:6B:DA:FA:70:E7:B2:49:53:2D:EF:8B:90:5E
  • Timestamp : May 9 00:21:39.021 2020 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:F7:2B:F2:2C:03:E0:D3:8D:E5:D7:90:
  • EA:0E:E3:94:7A:BB:2D:16:E8:FD:0E:F5:24:A6:B5:D9:
  • 71:8A:93:D4:3B:02:21:00:FF:AA:F6:75:DE:8A:ED:0E:
  • BF:4E:F5:39:43:FB:F1:22:86:30:25:7A:DE:83:1C:A3:
  • 47:90:33:7F:E0:53:A6:86