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THE CERTIFICATE BEHIND THE CONNECTION

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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

netnam.vn · 202.151.160.5:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed

Certificate verification failed

Subject
CN=*.netnam.vn
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R6 AlphaSSL CA 2025
Valid from
2025-11-03T08:18:50+00:00
Expires
2026-12-05T08:18:49+00:00
Days remaining
53
Serial (hex)
35DA046883F95F0FF463DB07
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.netnam.vn, DNS:netnam.vn

SHA-256 fingerprint

A2:57:B9:B2:61:B3:F0:34:56:61:D6:1D:29:59:A5:BC:21:90:1E:1D:1A:E9:1C:33:10:BD:AB:36:17:40:6E:D7
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:*.netnam.vn, DNS:netnam.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
09:B6:D9:83:90:1B:1E:D5:E4:6F:57:0F:CE:F4:27:CC:9A:B3:E9:9E
ct_precert_scts
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 : Nov 3 08:18:53.694 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:F4:0A:91:57:E2:60:26:87:0D:D6:81: 5A:EB:45:33:8D:FF:CD:41:E1:93:D4:41:7C:06:89:5B: E8:05:01:49:B5:02:20:6A:45:7F:F6:A1:E1:E2:E4:8F: 39:25:23:59:30:C2:5E:F1:98:17:7B:74:92:DE:8D:D7: 5B:B8:47:8B:F3:1F:54 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E: F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7 Timestamp : Nov 3 08:18:53.709 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:C0:13:6B:D1:C1:31:3A:1D:23:4E:38: 28:51:B2:2B:C5:12:15:0A:78:CD:C2:C3:50:26:38:BD: A4:6D:CA:49:6E:02:21:00:9C:95:AD:B3:24:57:20:5C: 24:EA:D2:70:81:59:4C:F5:6E:1C:28:F3:C1:24:8E:20: 6F:21:72:3D:56:6E:E4:E2 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 : Nov 3 08:18:53.690 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:AF:10:49:69:01:9F:22:E8:8F:26:C7: C2:D9:F9:44:AA:58:E8:81:7C:78:61:56:0D:B3:58:BA: 2E:75:FA:C1:79:02:21:00:B5:25:B5:67:B0:74:3A:55: A4:5E:D9:65:B8:18:54:EE:06:DE:E6:D6:A9:8C:B1:66: F6:8F:F9:CB:40:AB:F6:7F
-----BEGIN CERTIFICATE-----
MIIGVjCCBT6gAwIBAgIMNdoEaIP5Xw/0Y9sHMA0GCSqGSIb3DQEBCwUAMFUxCzAJ
BgNVBAYTAkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMSswKQYDVQQDEyJH
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XPat2CtcsoZphpYW8yqZpSicHyGGE8qaqefRtNFdFkL2V0z0/OZvP1Fh
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-12T14:35:51+00:00

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

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