DNS
THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.3

mx.daivietso.com · 103.95.197.64:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate subjectAltName did not match expected name `mx.daivietso.com'

Certificate verification failed

Subject
CN=*.cloudzone.vn
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R6 AlphaSSL CA 2025
Valid from
2025-12-04T08:23:24+00:00
Expires
2027-01-05T08:23:23+00:00
Days remaining
73
Serial (hex)
2A54F423688F07672F29BDFC
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.cloudzone.vn, DNS:cloudzone.vn

SHA-256 fingerprint

CA:92:CB:C9:AD:38:16:A2:B2:A4:65:29:91:C7:3E:32:7B:97:A5:2C:AA:FE:C9:E6:3D:AC:AE:07:92:A0:C9:86
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
authorityInfoAccess
CA Issuers - URI:http://secure.globalsign.com/cacert/gsgccr6alphasslca2025.crt OCSP - URI:http://ocsp.globalsign.com/gsgccr6alphasslca2025
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.3.6.1.4.1.4146.10.1.3 CPS: https://www.globalsign.com/repository/
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/gsgccr6alphasslca2025.crl
subjectAltName
DNS:*.cloudzone.vn, DNS:cloudzone.vn
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityKeyIdentifier
C5:B4:93:8F:6F:2B:DC:1E:48:BF:B7:10:30:85:CE:D1:B2:BB:48:2D
subjectKeyIdentifier
24:91:0A:E1:35:54:25:4F:89:29:60:BE:8B:E3:BD:81:53:AA:4B:5F
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 : Dec 4 08:23:28.358 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:BA:5A:9C:7E:72:CB:81:94:BE:18:82: 40:2A:F5:4A:83:7B:64:C2:6E:BD:49:AA:81:6D:D3:11: 4C:97:89:87:85:02:21:00:A3:D3:E7:E2:21:FA:38:8E: 6A:82:64:E6:00:D1:33:E7:3F:82:5E:71:99:9A:10:1C: 57:CC:31:0A:A5:BF:F9:A3 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 : Dec 4 08:23:28.383 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:FD:B1:56:CC:33:B1:1C:44:99:40:5B: B4:1D:F0:68:6D:4B:2E:62:D1:5A:8B:5A:78:39:A4:12: 2C:D4:69:00:61:02:20:6A:31:AE:60:5D:B0:26:29:AE: 01:86:0A:F9:82:02:AC:FE:05:75:ED:A1:5C:EB:4E:A5: 09:6D:55:47:5F:F1:3A 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 : Dec 4 08:23:28.311 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:B0:E3:60:16:F3:84:64:F7:F6:E2:55: 3B:5C:3A:76:E7:88:89:89:25:12:E6:27:63:54:23:FD: C6:33:A5:BD:4F:02:21:00:DB:1F:13:59:E4:D6:96:F3: 44:44:D3:43:A9:98:7D:A8:62:D5:CD:13:16:F8:14:5C: 71:69:40:C6:A9:DA:71:D3
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-23T10:06:03+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R6 AlphaSSL CA 2025
Issuer
OU=GlobalSign Root CA - R6 O=GlobalSign CN=GlobalSign
Valid from
2025-05-21T02:36:52+00:00
Expires
2027-05-21T00:00:00+00:00
Days remaining
209
Serial (hex)
837D4EB89E912FE72CAD3BC7692DDC20
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

A8:83:55:92:31:F8:38:8D:AF:35:CE:41:C8:10:10:40:AE:8F:D9:B6:56:43:42:47:B9:47:5A:F5:92:CC:08:CA
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
C5:B4:93:8F:6F:2B:DC:1E:48:BF:B7:10:30:85:CE:D1:B2:BB:48:2D
authorityKeyIdentifier
AE:6C:05:A3:93:13:E2:A2:E7:E2:D7:1C:D6:C7:F0:7F:C8:67:53:A0
authorityInfoAccess
OCSP - URI:http://ocsp2.globalsign.com/rootr6 CA Issuers - URI:http://secure.globalsign.com/cacert/root-r6.crt
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/root-r6.crl
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.3.6.1.4.1.4146.10.1.3
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

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