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

bts.co.th · 103.82.248.90:443

Verified

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

Subject
C=TH ST=Bangkok L=Chatuchak O=Bangkok Mass Transit System Public Company Limited CN=*.bts.co.th
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Valid from
2026-05-18T00:00:00+00:00
Expires
2026-12-02T23:59:59+00:00
Days remaining
61
Serial (hex)
07E35FFCF36836D3282A58391556F43C
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.bts.co.th, DNS:bts.co.th

SHA-256 fingerprint

75:C1:63:83:31:3C:4A:E7:1C:7C:4F:86:67:71:5F:12:A6:73:07:2F:D4:A4:3E:EE:85:E9:1E:26:04:05:C5:56
Certificate extensions & PEM
authorityKeyIdentifier
94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
subjectKeyIdentifier
DF:32:19:5B:74:EF:E8:86:A7:91:63:2B:20:85:E8:E2:09:F7:C7:CD
subjectAltName
DNS:*.bts.co.th, DNS:bts.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://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.geotrust.com CA Issuers - URI:http://cacerts.geotrust.com/GeoTrustTLSRSACAG1.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 : May 18 03:14:27.556 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:EE:78:3F:A0:EB:A6:76:30:3E:69:6C: 45:3B:67:E0:9E:E2:69:DC:40:FB:08:64:D4:D9:5C:A1: F0:BD:1D:F5:5F:02:21:00:D3:44:C9:F7:88:3A:C9:DA: B2:1D:1F:25:EB:E2:1D:DC:C4:F3:67:F8:67:F9:CB:B3: 31:70:FA:76:F7:71:F5:DA 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 : May 18 03:14:27.579 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:F8:F0:49:EB:7E:DE:DF:F8:A1:15:57: BE:A5:2A:1F:62:8E:AA:E8:E2:F1:D3:F3:45:BF:EC:3D: FD:A2:67:DC:C2:02:21:00:8D:0B:BD:41:CD:2B:63:8F: 0E:5A:CD:56:91:52:7A:56:66:E5:D1:F1:B5:1B:65:81: E1:97:8D:65:75:FB:3A:80 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 : May 18 03:14:27.569 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:FC:EC:B9:3C:6E:36:6E:DD:EF:61:C3: 1B:9E:35:EC:6B:31:CD:87:16:56:20:E2:72:24:0E:F8: 76:53:36:55:99:02:21:00:C6:D8:03:7C:65:29:F3:B4: F6:A5:C0:7D:F7:41:54:39:8E:74:08:FB:D3:EB:E9:F9: 5F:2F:67:2F:EC:52:F5:A9
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-SHA384 · Checked 2026-10-02T13:00:41+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:23:37+00:00
Expires
2027-11-02T12:23:37+00:00
Days remaining
395
Serial (hex)
0D07782A133FC6F9A57296E131FFD179
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C0:6E:30:7F:7C:FC:1D:32:FA:72:A4:C0:33:C8:7B:90:01:9A:F2:16:F0:77:5D:64:97:8A:2E:CA:6C:8A:23:0E
Certificate extensions & PEM
subjectKeyIdentifier
94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
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: X509v3 Any Policy CPS: https://www.digicert.com/CPS
-----BEGIN CERTIFICATE-----
MIIEjTCCA3WgAwIBAgIQDQd4KhM/xvmlcpbhMf/ReTANBgkqhkiG9w0BAQsFADBh
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBH
MjAeFw0xNzExMDIxMjIzMzdaFw0yNzExMDIxMjIzMzdaMGAxCzAJBgNVBAYTAlVT
MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5j
b20xHzAdBgNVBAMTFkdlb1RydXN0IFRMUyBSU0EgQ0EgRzEwggEiMA0GCSqGSIb3
DQEBAQUAA4IBDwAwggEKAoIBAQC+F+jsvikKy/65LWEx/TMkCDIuWegh1Ngwvm4Q
yISgP7oU5d79eoySG3vOhC3w/3jEMuipoH1fBtp7m0tTpsYbAhch4XA7rfuD6whU
gajeErLVxoiWMPkC/DnUvbgi74BJmdBiuGHQSd7LwsuXpTEGG9fYXcbTVN5SATYq
DfbexbYxTMwVJWoVb6lrBEgM3gBBqiiAiy800xu1Nq07JdCIQkBsNpFtZbIZhsDS
fzlGWP4wEmBQ3O67c+ZXkFr2DcrXBEtHam80Gp2SNhou2U5U7UesDL/xgLK6/0d7
6TnEVMSUVJkZ8VeZr+IUIlvoLrtjLbqugb0T3OYXW+CQU0kBAgMBAAGjggFAMIIB
PDAdBgNVHQ4EFgQUlE/UXYvkpOKmgP792PkA76O+AlcwHwYDVR0jBBgwFoAUTiJU
IBiV5uNu5g/6+rkS7QYXjzkwDgYDVR0PAQH/BAQDAgGGMB0GA1UdJQQWMBQGCCsG
AQUFBwMBBggrBgEFBQcDAjASBgNVHRMBAf8ECDAGAQH/AgEAMDQGCCsGAQUFBwEB
BCgwJjAkBggrBgEFBQcwAYYYaHR0cDovL29jc3AuZGlnaWNlcnQuY29tMEIGA1Ud
HwQ7MDkwN6A1oDOGMWh0dHA6Ly9jcmwzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEds
b2JhbFJvb3RHMi5jcmwwPQYDVR0gBDYwNDAyBgRVHSAAMCowKAYIKwYBBQUHAgEW
HGh0dHBzOi8vd3d3LmRpZ2ljZXJ0LmNvbS9DUFMwDQYJKoZIhvcNAQELBQADggEB
AIIcBDqC6cWpyGUSXAjjAcYwsK4iiGF7KweG97i1RJz1kwZhRoo6orU1JtBYnjzB
c4+/sXmnHJk3mlPyL1xuIAt9sMeC7+vreRIF5wFBC0MCN5sbHwhNN1JzKbifNeP5
ozpZdQFmkCo+neBiKR6HqIA+LMTMCMMuv2khGGuPHmtDze4GmEGZtYLyF8EQpa5Y
jPuV6k2Cr/N3XxFpT3hRpt/3usU/Zb9wfKPtWpoznZ4/44c1p9rzFcZYrWkj3A+7
TNBJE0GmP2fhXhP1D/XVfIW/h0yCJGEiV9Glm/uGOa3DXHlmbAcxSyCRraG+ZBkA
7h4SeM6Y8l/7MBRpPCz6l8Y=
-----END CERTIFICATE-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

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