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

ksc.net.th · 203.155.35.131:443

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
The certificate has expired.

Certificate verification failed

Subject
CN=*.ksc.net
Issuer
C=GB ST=Greater Manchester L=Salford O=Sectigo Limited CN=Sectigo RSA Domain Validation Secure Server CA
Valid from
2021-03-23T00:00:00+00:00
Expires
2022-04-23T23:59:59+00:00
Days remaining
-1630
Serial (hex)
40B0873DFDC837A755C0D30771A1B298
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.ksc.net, DNS:ksc.net

SHA-256 fingerprint

19:13:00:55:12:3D:6E:12:B7:12:16:AC:15:9E:9C:A1:56:6C:5B:4A:6F:25:42:00:58:13:88:8D:41:C3:F8:B5
Certificate extensions & PEM
authorityKeyIdentifier
8D:8C:5E:C4:54:AD:8A:E1:77:E9:9B:F9:9B:05:E1:B8:01:8D:61:E1
subjectKeyIdentifier
22:34:F7:D0:97:71:C4:AC:A3:E1:D6:58:50:98:77:05:1C:8B:75:E8
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.2.7 CPS: https://sectigo.com/CPS Policy: 2.23.140.1.2.1
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:*.ksc.net, DNS:ksc.net
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:A5:55:EB:75:FA:91:20:30:B5:A2:89:69:F4:F3:7D: 11:2C:41:74:BE:FD:49:B8:85:AB:F2:FC:70:FE:6D:47 Timestamp : Mar 23 09:13:48.760 2021 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:85:33:00:29:5F:1E:4B:10:ED:2C:F4: C7:A3:EB:00:CF:10:B3:13:80:3F:85:3F:46:36:8F:08: 18:89:72:F8:70:02:20:28:A1:1E:56:57:94:8C:57:46: BD:C8:29:AC:DA:36:23:91:5B:36:CD:E3:51:F4:0D:0B: D0:C5:FC:53:AE:D8:66 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : DF:A5:5E:AB:68:82:4F:1F:6C:AD:EE:B8:5F:4E:3E:5A: EA:CD:A2:12:A4:6A:5E:8E:3B:12:C0:20:44:5C:2A:73 Timestamp : Mar 23 09:13:48.695 2021 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:E2:B2:7D:90:45:A0:E8:DD:48:D5:1A: 67:D8:F6:A2:17:E4:F0:F8:9F:F3:7A:CF:AF:73:E3:6F: 15:DF:E8:B7:5D:02:20:69:82:BC:61:74:7F:4C:36:96: 59:A2:6C:DD:46:65:A2:08:7B:CC:EC:E7:2C:18:48:6F: 9C:D5:4D:D9:9C:4E:40
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-SHA384 · Checked 2026-10-09T06:25:12+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=GB ST=Greater Manchester L=Salford O=Sectigo Limited CN=Sectigo RSA Domain Validation Secure Server CA
Issuer
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust RSA Certification Authority
Valid from
2018-11-02T00:00:00+00:00
Expires
2030-12-31T23:59:59+00:00
Days remaining
1544
Serial (hex)
7D5B5126B476BA11DB74160BBC530DA7
Signature
RSA-SHA384
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

7F:A4:FF:68:EC:04:A9:9D:75:28:D5:08:5F:94:90:7F:4D:1D:D1:C5:38:1B:AC:DC:83:2E:D5:C9:60:21:46:76
Certificate extensions & PEM
authorityKeyIdentifier
53:79:BF:5A:AA:2B:4A:CF:54:80:E1:D8:9B:C0:9D:F2:B2:03:66:CB
subjectKeyIdentifier
8D:8C:5E:C4:54:AD:8A:E1:77:E9:9B:F9:9B:05:E1:B8:01:8D:61:E1
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: X509v3 Any Policy Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.usertrust.com/USERTrustRSACertificationAuthority.crl
authorityInfoAccess
CA Issuers - URI:http://crt.usertrust.com/USERTrustRSAAddTrustCA.crt OCSP - URI:http://ocsp.usertrust.com
-----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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