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

TLSv1.2

ols.co.th · 203.154.59.180:443

Verified

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

Subject
CN=www.ols.co.th
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R6 AlphaSSL CA 2025
Valid from
2026-07-21T04:11:11+00:00
Expires
2027-02-05T04:11:11+00:00
Days remaining
102
Serial (hex)
1A6EB98C16DDA2DD72654377
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:www.ols.co.th, DNS:ols.co.th

SHA-256 fingerprint

06:CB:83:07:C8:DE:E3:16:CB:9B:61:2F:68:B1:BD:06:93:1F:4F:8D:FD:31:73:E2:8F:58:40:8C:E7:08:7C:9A
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:www.ols.co.th, DNS:ols.co.th
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
D0:84:EC:BA:F3:4D:78:2D:C2:52:ED:D9:60:8B:98:6B:3B:D6:6D:C6
ct_precert_scts
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 21 04:11:15.131 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:85:E7:8F:1B:4A:3F:B2:95:99:2B:8F: E8:C6:01:E7:C7:07:FB:C3:1B:BD:ED:02:52:2F:20:70: 29:26:1D:50:AE:02:21:00:8D:D0:F9:E9:CC:25:11:AB: CD:8D:82:3E:11:0B:64:B8:56:A3:37:E3:F8:DC:57:22: D9:5E:8B:04:27:B2:7F:7F 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 21 04:11:14.967 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:89:5A:45:7D:E5:87:A7:FA:43:A6:40: B9:99:EE:07:17:C4:67:91:A7:65:A1:EA:D1:90:59:30: 9B:9D:CA:4B:50:02:21:00:F5:A6:0C:F1:20:66:C4:86: 9C:12:BF:86:79:65:9B:73:AF:F1:F0:40:2D:2B:A5:0D: 7E:BF:DD:92:15:E6:4D:02 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Jul 21 04:11:15.428 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:5C:DD:77:72:C9:5B:04:E1:D6:4B:27:96: A5:38:44:3B:75:4E:37:B2:62:E6:B2:6F:2F:65:3E:45: CD:90:44:19:02:21:00:E4:7B:41:BD:2D:2D:0F:3A:56: DC:EC:18:7E:D6:5E:66:98:26:CC:B5:E5:1F:37:49:D9: 4C:3D:A8:9C:20:2D:79
-----BEGIN CERTIFICATE-----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==
-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-GCM-SHA384 · Checked 2026-10-25T23:33:45+00:00

Server-presented chain · 2 additional certificates

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
207
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-----

Chain certificate 2

Subject
OU=GlobalSign Root CA - R6 O=GlobalSign CN=GlobalSign
Issuer
C=BE O=GlobalSign nv-sa OU=Root CA CN=GlobalSign Root CA
Valid from
2019-06-19T00:00:00+00:00
Expires
2028-01-28T12:00:00+00:00
Days remaining
459
Serial (hex)
751E3F5649E74CBBF69D0026B67CAA8C
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C8:4E:13:78:B9:74:A9:91:AC:DC:DD:73:34:21:E3:06:1E:6F:A2:1A:04:91:C8:90:2B:AF:DE:38:55:E0:06:3E
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
subjectKeyIdentifier
AE:6C:05:A3:93:13:E2:A2:E7:E2:D7:1C:D6:C7:F0:7F:C8:67:53:A0
authorityKeyIdentifier
60:7B:66:1A:45:0D:97:CA:89:50:2F:7D:04:CD:34:A8:FF:FC:FD:4B
authorityInfoAccess
OCSP - URI:http://ocsp.globalsign.com/rootr1
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/root.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.globalsign.com/repository/
-----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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