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

as2.bkns.com.vn · 103.48.81.100:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
CN=*.bkns.com.vn
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Valid from
2025-12-15T00:00:00+00:00
Expires
2026-12-14T23:59:59+00:00
Days remaining
54
Serial (hex)
0287DD8951C9477BF5782FCFCBAAA5F3
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.bkns.com.vn, DNS:bkns.com.vn

SHA-256 fingerprint

9E:A9:46:3F:5E:CB:42:BB:1E:99:C3:82:A4:D3:7D:59:79:C6:E0:78:27:5E:AA:DB:03:ED:F8:1F:F0:77:F1:36
Certificate extensions & PEM
authorityKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
subjectKeyIdentifier
8A:73:71:C0:56:17:20:66:9B:46:DD:07:2E:40:27:56:FB:38:D2:70
subjectAltName
DNS:*.bkns.com.vn, DNS:bkns.com.vn
certificatePolicies
Policy: 2.23.140.1.2.1 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
crlDistributionPoints
Full Name: URI:http://cdp.rapidssl.com/RapidSSLTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.rapidssl.com CA Issuers - URI:http://cacerts.rapidssl.com/RapidSSLTLSRSACAG1.crt
basicConstraints
CA:FALSE
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 : Dec 15 00:20:15.067 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:59:AE:30:A4:6A:88:F1:71:41:52:D7:70: 86:F9:06:67:C4:36:0F:3F:DA:2B:2F:B0:6C:B0:63:D6: 03:64:5B:46:02:20:2F:F5:00:30:F7:D1:BF:9B:71:71: 49:27:D9:98:EB:6C:B3:6D:EC:69:27:A5:F5:28:45:DC: 8B:C3:2F:61:07:79 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C8:A3:C4:7F:C7:B3:AD:B9:35:6B:01:3F:6A:7A:12:6D: E3:3A:4E:43:A5:C6:46:F9:97:AD:39:75:99:1D:CF:9A Timestamp : Dec 15 00:20:15.057 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:1A:E0:58:87:8A:F1:76:FA:EA:6B:B6:A6: 29:CB:9C:65:66:6C:DF:95:A9:87:B6:F1:93:BD:9B:F9: 35:22:9A:CD:02:21:00:8C:B7:55:D8:2A:B9:9E:85:22: 00:A4:58:9E:E0:61:4E:62:6D:B0:10:2D:C1:E2:30:1E: AD:58:31:F6:A9:35:0A 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 : Dec 15 00:20:15.257 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:F2:46:E6:51:2F:11:A4:C8:E8:E2:6B: 12:68:A8:EA:D8:AC:53:52:4A:EB:37:D7:19:8E:72:55: BA:FF:67:2F:07:02:20:7C:99:70:BD:72:26:9D:8D:DD: BB:67:C6:43:04:6B:6F:0A:1D:ED:52:44:35:8B:0B:CF: 0E:19:00:A0:DD:61:08
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-21T00:05:28+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:24:33+00:00
Expires
2027-11-02T12:24:33+00:00
Days remaining
377
Serial (hex)
0B259422CED9812A15A04E99528A0EFA
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

44:22:E9:63:EE:53:CD:58:CC:9F:85:CD:40:BF:5F:FE:C0:09:5F:DF:1A:15:45:35:66:1C:1C:06:BC:AD:C6:9B
Certificate extensions & PEM
subjectKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
authorityKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.1.1 CPS: https://www.digicert.com/CPS Policy: 2.16.840.1.114412.1.2 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2013-08-01T12:00:00+00:00
Expires
2038-01-15T12:00:00+00:00
Days remaining
4104
Serial (hex)
033AF1E6A711A9A0BB2864B11D09FAE5
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

CB:3C:CB:B7:60:31:E5:E0:13:8F:8D:D3:9A:23:F9:DE:47:FF:C3:5E:43:C1:14:4C:EA:27:D4:6A:5A:B1:CB:5F
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
subjectKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
-----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.

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