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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

bkdns.vn · 103.121.88.5:443

Verified

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

Subject
CN=bkdns.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
55
Serial (hex)
0D260D391AFAED3D842ED0110C1E9ED3
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:bkdns.vn, DNS:www.bkdns.vn

SHA-256 fingerprint

92:46:B6:3B:AB:F6:63:90:5E:23:91:FD:8E:8E:E3:F4:9C:89:0A:68:B5:A6:57:59:B7:FC:80:1C:54:1C:A2:52
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
A6:38:A1:9D:B7:A7:56:96:09:4F:CC:51:0B:64:5C:E7:1C:E9:C9:1B
subjectAltName
DNS:bkdns.vn, DNS:www.bkdns.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 : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB: B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14 Timestamp : Dec 15 01:40:34.315 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:A8:57:61:11:2F:6F:01:D7:84:BA:BE: 54:3E:F3:39:97:F1:85:90:49:DE:54:4C:D0:F1:04:2F: 1B:87:BB:19:67:02:20:12:B2:3F:93:6F:93:A9:A1:00: 52:F4:73:68:FB:98:B6:56:02:40:4B:B7:DF:AF:B4:3B: 9C:77:9B:F5:08:4F:B7 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 01:40:34.332 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:FC:76:60:31:82:C4:EC:CA:9C:02:16: 07:41:CF:15:FC:D8:8D:23:2A:07:91:EC:8C:E9:D1:15: E6:EB:F6:C8:50:02:20:5B:F3:E6:5F:68:AB:D0:D1:94: 90:E8:9D:B0:B5:42:F7:3F:31:3E:7D:0E:F9:B1:6A:1A: 5A:D2:C1:63:C5:40:15 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 01:40:34.311 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:44:7F:DE:A8:F7:E1:8A:BA:5E:A8:0B:F2: 6A:63:63:8B:F1:D7:E8:21:13:A7:87:D7:E6:87:0F:2D: AF:4A:6E:E2:02:21:00:89:DA:B8:E9:D6:70:CF:13:F5: E5:85:B0:BD:F9:6A:90:CA:77:B1:B5:03:47:53:ED:95: AE:93:A5:41:CE:5E:61
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-20T19:06:09+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.

View certificate JSON

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