SSL-Tools

SSL check results of sywg.com.hk

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Discover if the mail servers for sywg.com.hk 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, 26 Sep 2026 00:30:21 +0000

We can not guarantee a secure connection to the mailservers of sywg.com.hk!

Please contact the operator of sywg.com.hk and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/sywg.com.hk

Servers

Incoming Mails

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

Hostname / IP address Priority STARTTLS Certificates Protocol
tkomail2.sywg.com.hk
14.136.210.46
Results incomplete
20
supported
*.swhyhk.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
3 s
tkomail4.sywg.com.hk
14.136.210.47
 20
supported
*.swhyhk.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
18 s
tkomail3.sywg.com.hk
220.241.227.143
Results incomplete
20
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s
tkomail1.sywg.com.hk
220.241.227.142
Results incomplete
20
supported
*.swhyhk.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mail2.sywg.com.hk
14.136.215.68
Results incomplete
50
supported
*.swhyhk.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
mail3.sywg.com.hk
203.174.48.131
Results incomplete
50 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mail1.sywg.com.hk
203.174.48.130
Results incomplete
50 not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
11 s
mail.sywg.com.hk
14.136.215.67
Results incomplete
50
supported
*.swhyhk.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Outgoing Mails

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

Certificates

First seen at:

CN=*.swhyhk.com,O=Shenwan Hongyuan Securities (H.K.) Limited,L=Hong Kong Island,C=HK

Certificate chain
Subject
Country (C)
  • HK
Locality (L)
  • Hong Kong Island
Organization (O)
  • Shenwan Hongyuan Securities (H.K.) Limited
Common Name (CN)
  • *.swhyhk.com
Alternative Names
  • *.swhyhk.com
  • swhyhk.com
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Organizational Unit (OU)
  • www.digicert.com
Common Name (CN)
  • GeoTrust TLS RSA CA G1
validity period
Not valid before
2026-08-27
Not valid after
2027-01-17
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
1E:5A:EC:E8:48:30:00:91:C0:14:C9:CB:BC:1A:1B:C4:19:E4:D4:48:7F:79:A6:02:A0:86:7D:5E:D5:2B:F5:57
SHA1
0E:E7:E2:E1:6B:4A:33:DB:46:A3:F3:72:4B:FA:98:D0:39:B2:EE:D7
X509v3 extensions
authorityKeyIdentifier
  • keyid:94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
subjectKeyIdentifier
  • F0:9F:34:E7:46:9D:35:29:69:86:A6:A8:81:C6:B0:5F:39:7F:54:09
certificatePolicies
  • Policy: 2.23.140.1.2.2
  • CPS: http://www.digicert.com/CPS
crlDistributionPoints
  • Full Name:
  • URI:http://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl
authorityInfoAccess
  • OCSP - URI:http://status.geotrust.com
  • CA Issuers - URI:http://cacerts.geotrust.com/GeoTrustTLSRSACAG1.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F:
  • AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26
  • Timestamp : Aug 27 01:43:56.796 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:F2:47:2E:D2:61:A8:E2:B9:E4:1E:C6:
  • 78:EC:EC:4C:76:17:73:36:EE:2E:3D:DE:7F:97:5C:22:
  • 88:FE:7C:65:BE:02:21:00:A5:35:B0:37:16:0F:46:D5:
  • 22:AB:84:8F:78:24:69:7E:F3:EF:3E:3A:4B:4E:28:FE:
  • AB:3C:F9:00:03:A2:21:B5
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF:
  • EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02
  • Timestamp : Aug 27 01:43:56.905 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:8C:6A:FB:B4:D1:BC:EC:0C:E9:1F:F7:
  • 86:4C:B8:F5:FF:DE:46:B1:E3:18:93:3B:C0:82:13:1B:
  • 18:E6:E2:E1:BF:02:20:4C:AD:77:85:F6:FF:1C:70:14:
  • B9:86:32:9E:C9:3E:C9:3B:77:AD:89:EE:5C:1F:5B:A6:
  • DA:EC:58:C3:A6:2B:7F
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : A2:81:00:18:73:4E:17:6E:1D:47:E0:95:40:F3:81:BA:
  • 54:66:97:CD:63:A8:43:50:71:6E:B8:09:4E:DA:F1:0D
  • Timestamp : Aug 27 01:43:57.150 2026 GMT
  • Extensions: 00:00:05:00:0A:94:71:D0
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:AE:90:12:86:72:42:47:94:39:97:69:
  • 30:3E:37:33:4E:6F:BE:77:31:93:AB:19:08:3A:32:A5:
  • 98:E6:8A:37:5B:02:21:00:B0:71:EE:1D:3B:20:50:DD:
  • EE:E9:D4:D1:01:FE:31:D6:EC:27:22:DC:9E:21:03:25:
  • D4:6D:CD:B1:F6:FA:0B:9C
First seen at:

CN=*.swhyhk.com,O=Shenwan Hongyuan Securities (H.K.) Limited,L=Hong Kong Island,C=HK

Certificate chain
  • *.swhyhk.com
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Hostname Mismatch
    • Expired
    • Unknown Authority
      DigiCert Global G2 TLS RSA SHA256 2020 CA1
Subject
Country (C)
  • HK
Locality (L)
  • Hong Kong Island
Organization (O)
  • Shenwan Hongyuan Securities (H.K.) Limited
Common Name (CN)
  • *.swhyhk.com
Alternative Names
  • *.swhyhk.com
  • swhyhk.com
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Common Name (CN)
  • DigiCert Global G2 TLS RSA SHA256 2020 CA1
validity period
Not valid before
2026-05-22
Not valid after
2026-09-06
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
40:D4:67:DC:3C:26:06:83:AB:69:04:26:E1:52:DB:D2:AD:98:CF:D6:DB:0A:F1:A3:83:51:A3:76:91:92:95:14
SHA1
35:AD:37:A4:FB:6F:43:A0:44:8B:05:A8:A6:C0:43:3E:54:41:0D:A0
X509v3 extensions
authorityKeyIdentifier
  • keyid:74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
subjectKeyIdentifier
  • 4F:E3:45:1C:19:26:40:07:D0:8E:BF:83:46:3E:E7:00:67:4A:ED:1C
certificatePolicies
  • Policy: 2.23.140.1.2.2
  • CPS: http://www.digicert.com/CPS
crlDistributionPoints
  • Full Name:
  • URI:http://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
  • Full Name:
  • URI:http://crl4.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
authorityInfoAccess
  • OCSP - URI:http://ocsp.digicert.com
  • CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB:
  • C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD
  • Timestamp : May 22 01:49:34.420 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:C1:3E:88:0D:5B:1F:66:55:9D:19:1A:
  • 36:37:B0:14:AE:AD:03:C1:E7:AC:6A:41:9D:DA:66:6A:
  • 9A:10:05:9A:89:02:21:00:A4:5B:ED:FE:17:6C:5F:AB:
  • CF:09:8B:0F:49:81:F3:6E:66:A6:C5:56:09:28:95:D8:
  • 17:CB:17:39:81:5F:28:7D
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9:
  • 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77
  • Timestamp : May 22 01:49:34.380 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:B9:5C:E5:EB:D9:EA:C8:A3:42:86:A4:
  • 89:7D:9B:3C:49:E6:68:07:DA:CE:BF:B4:29:4E:E5:DD:
  • F2:BF:B6:1F:B3:02:21:00:DB:B6:A7:43:B8:9F:92:32:
  • 11:51:0C:52:FE:8A:A9:CE:CE:D4:5A:62:F9:2F:66:A4:
  • 3E:46:A4:E8:B0:FB:02:12
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65:
  • 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8
  • Timestamp : May 22 01:49:34.434 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:FD:CA:78:32:9B:39:5F:A6:9D:82:97:
  • AF:45:90:DE:B6:96:EA:6A:C0:8D:20:61:91:3C:E4:5B:
  • C1:19:CB:3C:F2:02:20:20:51:58:D8:03:E8:A3:F1:71:
  • A5:CA:C1:23:9E:40:8C:A7:4D:39:88:10:14:27:34:B9:
  • 0C:A9:B4:77:6F:C4:7E
First seen at:

CN=*.swhyhk.com,O=Shenwan Hongyuan Securities (H.K.) Limited,L=Hong Kong Island,C=HK

Certificate chain
Subject
Country (C)
  • HK
Locality (L)
  • Hong Kong Island
Organization (O)
  • Shenwan Hongyuan Securities (H.K.) Limited
Common Name (CN)
  • *.swhyhk.com
Alternative Names
  • *.swhyhk.com
  • swhyhk.com
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Organizational Unit (OU)
  • www.digicert.com
Common Name (CN)
  • GeoTrust TLS RSA CA G1
validity period
Not valid before
2026-07-14
Not valid after
2027-01-17
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
Fingerprints
SHA256
5F:FD:F9:E3:2F:76:54:A1:63:48:A9:B4:3F:DF:DE:C5:E2:52:12:75:6D:8C:8C:3B:99:13:74:E4:68:97:AB:6A
SHA1
AE:3B:0B:BF:AF:93:77:5E:63:5F:33:BB:23:4B:A5:AA:EF:90:66:97
X509v3 extensions
authorityKeyIdentifier
  • keyid:94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
subjectKeyIdentifier
  • 0E:10:08:D7:DA:DC:18:E3:0D:97:DA:A1:03:50:04:4C:1C:7A:3C:61
certificatePolicies
  • Policy: 2.23.140.1.2.2
  • CPS: http://www.digicert.com/CPS
crlDistributionPoints
  • Full Name:
  • URI:http://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl
authorityInfoAccess
  • OCSP - URI:http://status.geotrust.com
  • CA Issuers - URI:http://cacerts.geotrust.com/GeoTrustTLSRSACAG1.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F:
  • AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26
  • Timestamp : Jul 14 02:51:22.572 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:7A:11:D6:34:78:E6:7A:28:EE:2E:35:76:
  • 2B:B6:7F:63:68:71:26:AF:29:B4:D4:B4:C6:A9:93:F3:
  • 82:D9:31:72:02:21:00:B3:C1:61:94:84:54:60:30:D9:
  • 8D:A5:BF:D1:8A:92:9C:E5:8B:6E:DF:23:1C:F3:77:3B:
  • 87:AD:55:70:AB:92:2C
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1:
  • BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66
  • Timestamp : Jul 14 02:51:22.662 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:9C:1B:FC:1B:2B:42:8B:E9:FD:73:A0:
  • F7:51:99:96:6D:AC:A4:AF:25:9D:C1:B9:52:2E:74:40:
  • 14:05:E9:A8:DF:02:21:00:9B:E5:98:53:47:C6:B1:EC:
  • DE:44:05:EC:15:8C:86:77:03:39:40:42:D8:B8:91:8E:
  • 69:FD:14:19:7E:CB:B1:97
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD:
  • DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F
  • Timestamp : Jul 14 02:51:22.691 2026 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:BD:85:F3:21:81:BE:1A:15:E5:0A:5A:
  • 26:3C:D9:27:F1:5D:0C:A9:8E:F8:07:31:D6:64:EC:CA:
  • 40:BB:53:D2:A3:02:20:5B:96:93:2C:20:41:E5:30:F2:
  • A2:39:E6:E6:EB:C8:E5:56:D8:23:D8:F4:52:41:5F:C9:
  • 6E:7B:91:D0:1B:FB:B1