SSL-Tools

SSL check results of webmail.niu.edu.tw

NEW You can also bulk check multiple servers.

Discover if the mail servers for webmail.niu.edu.tw 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, 07 Dec 2022 01:41:33 +0000

The mailservers of webmail.niu.edu.tw can be reached through a secure connection.

Servers

Incoming Mails

These servers are responsible for incoming mails to @webmail.niu.edu.tw addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
nopam.niu.edu.tw
2001:288:a001::20
 5
supported
*.niu.edu.tw
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
22 s
nopam.niu.edu.tw
120.101.0.20
 5
supported
*.niu.edu.tw
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
24 s

Outgoing Mails

We have not received any emails from a @webmail.niu.edu.tw address so far. Test mail delivery

Certificates

First seen at:

CN=*.niu.edu.tw,O=National Ilan University,L=Yilan,ST=Taiwan,C=TW

Certificate chain
Subject
Country (C)
  • TW
State (ST)
  • Taiwan
Locality (L)
  • Yilan
Organization (O)
  • National Ilan University
Common Name (CN)
  • *.niu.edu.tw
Alternative Names
  • *.niu.edu.tw
  • niu.edu.tw
Issuer
Country (C)
  • TW
Organization (O)
  • TAIWAN-CA
Organizational Unit (OU)
  • Secure SSL Sub-CA
Common Name (CN)
  • TWCA Secure SSL Certification Authority
validity period
Not valid before
2022-10-18
Not valid after
2023-11-18
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
C5:66:9E:E1:BA:74:76:D5:7B:50:87:97:7A:8A:94:E5:8B:15:AC:64:A6:5F:AD:51:9E:AC:BC:71:C2:F9:A5:96
SHA1
49:AE:2D:B6:7F:67:E6:06:B4:39:96:E3:8F:C5:23:45:79:1D:4B:7B
X509v3 extensions
authorityKeyIdentifier
  • keyid:F8:07:C2:68:24:FF:85:95:CB:DB:1E:E3:33:9C:2A:4F:97:20:56:7B
subjectKeyIdentifier
  • 7A:A1:53:0A:03:69:CE:68:13:C3:B5:2E:41:FB:B3:1E:13:56:F2:DA:E7:75:82:74:CE:71:5F:92:A2:50:1C:5F
crlDistributionPoints
  • Full Name:
  • URI:http://sslserver.twca.com.tw/sslserver/Securessl_revoke_sha2_2014.crl
authorityInfoAccess
  • CA Issuers - URI:http://sslserver.twca.com.tw/cacert/secure_sha2_2014.crt
  • OCSP - URI:http://twcasslocsp.twca.com.tw/
certificatePolicies
  • Policy: 1.3.6.1.4.1.40869.1.1.25
  • CPS: www.twca.com.tw
  • Policy: 2.23.140.1.2.2
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 55:81:D4:C2:16:90:36:01:4A:EA:0B:9B:57:3C:53:F0:
  • C0:E4:38:78:70:25:08:17:2F:A3:AA:1D:07:13:D3:0C
  • Timestamp : Oct 18 23:36:21.769 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:08:64:07:BA:19:82:53:2B:EE:74:F8:ED:
  • 4B:B8:1C:A7:C9:75:2B:8F:E9:62:5B:35:9E:42:25:B0:
  • E7:6A:C3:18:02:20:62:C6:EF:18:D1:DF:87:D4:21:90:
  • 31:8B:DB:CF:BF:BA:59:09:81:B2:94:30:C6:E5:45:42:
  • 36:51:32:5C:9D:3D
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 7A:32:8C:54:D8:B7:2D:B6:20:EA:38:E0:52:1E:E9:84:
  • 16:70:32:13:85:4D:3B:D2:2B:C1:3A:57:A3:52:EB:52
  • Timestamp : Oct 18 23:36:21.174 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:16:FC:0D:E5:08:9A:44:DC:5F:D3:1B:A5:
  • B2:53:5E:DA:2E:24:32:DC:77:A2:5A:66:72:A1:A1:62:
  • C7:81:BE:F4:02:21:00:F5:B2:F3:DB:18:71:7F:1E:C1:
  • 67:02:1A:6A:DF:AE:5F:3B:01:19:F9:5F:EC:CE:80:D4:
  • 9D:23:0E:02:D9:62:78
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : AD:F7:BE:FA:7C:FF:10:C8:8B:9D:3D:9C:1E:3E:18:6A:
  • B4:67:29:5D:CF:B1:0C:24:CA:85:86:34:EB:DC:82:8A
  • Timestamp : Oct 18 23:36:21.192 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:D7:D6:BD:05:AE:03:F2:E5:BF:94:D7:
  • 43:FC:4B:BB:F1:E1:10:46:5B:CC:45:A0:C2:26:19:82:
  • 83:8E:44:0D:63:02:21:00:CE:2E:27:E2:51:95:63:FA:
  • CE:8B:E3:E5:FF:CC:A7:B2:A1:BF:9A:CE:87:42:88:C7:
  • E1:7F:6A:EC:A5:99:DA:27