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

pwa.co.th · 110.76.154.53:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate subjectAltName did not match expected name `pwa.co.th'

Certificate verification failed

Subject
C=TH ST=Bangkok L=Lak Si O=Provincial Waterworks Authority CN=www.pwa.co.th
Issuer
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from
2026-09-28T00:00:00+00:00
Expires
2027-04-12T23:59:59+00:00
Days remaining
178
Serial (hex)
0AE876037AF3F0C08A546A60761549B8
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:www.pwa.co.th, DNS:payment.pwa.co.th

SHA-256 fingerprint

5E:08:C1:D8:2A:33:1F:DA:32:09:3F:4C:D5:74:A1:A9:4B:1E:BB:0C:1C:19:45:3F:FA:4D:BF:31:DF:7A:03:52
Certificate extensions & PEM
authorityKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
subjectKeyIdentifier
22:42:5B:5A:9A:36:AE:A2:66:D2:94:9A:04:05:B0:A5:A0:08:79:BE
subjectAltName
DNS:www.pwa.co.th, DNS:payment.pwa.co.th
certificatePolicies
Policy: 2.23.140.1.2.2 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://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl Full Name: URI:http://crl4.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt
basicConstraints
CA:FALSE
ct_precert_scts
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 : Sep 28 02:00:22.501 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:80:B5:97:50:AC:12:F3:D0:53:C4:A2: D6:59:7D:91:00:54:AE:42:27:9A:DF:9F:A8:ED:41:74: 52:39:BF:B0:EA:02:20:00:D9:B6:19:80:35:38:64:4E: 52:56:8D:CD:75:4F:E6:87:E4:1F:84:03:64:73:21:0A: CC:7A:08:55:C7:63:F6 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Sep 28 02:00:22.577 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:3A:B6:06:BD:F9:11:F5:B5:8B:99:F3:AB: 55:3E:09:4E:32:31:D0:CD:1B:B4:6B:CC:32:0F:86:D8: 94:FF:E1:F2:02:20:5F:8F:01:41:73:58:AE:FD:4A:55: A7:93:55:E6:C2:C3:7F:CD:B2:AA:50:EF:42:33:4B:8E: 8F:45:C7:6F:1E:44 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Sep 28 02:00:22.538 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:95:A6:2A:07:FA:8E:75:06:A5:D1:75: 9A:2F:81:87:A8:17:FB:BB:06:A4:BA:ED:25:AE:43:58: 5D:4A:D2:9D:C2:02:21:00:EA:91:B0:CC:F1:94:78:16: AE:82:16:A4:A9:4D:D9:B5:13:F5:FC:A5:67:B5:A0:C8: 2D:2C:15:0E:3F:9F:29:EC
-----BEGIN CERTIFICATE-----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AQABo4IDnDCCA5gwHwYDVR0jBBgwFoAUdIWAwGbH3zfez70pN6oDHb7tzRcwHQYD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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-16T15:39:46+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2021-03-30T00:00:00+00:00
Expires
2031-03-29T23:59:59+00:00
Days remaining
1625
Serial (hex)
0CF5BD062B5602F47AB8502C23CCF066
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C8:02:5F:9F:C6:5F:DF:C9:5B:3C:A8:CC:78:67:B9:A5:87:B5:27:79:73:95:79:17:46:3F:C8:13:D0:B6:25:A9
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
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
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalRootG2.crt
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.2.1 Policy: 2.23.140.1.1 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2 Policy: 2.23.140.1.2.3
-----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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