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

openfind.com.tw · 192.124.249.15:443

Verified

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

Subject
CN=openfind.com.tw
Issuer
C=US O=Starfield Technologies CN=Starfield TLS Intermediate CA DV - R1v1
Valid from
2026-08-29T22:48:05+00:00
Expires
2026-11-27T22:48:05+00:00
Days remaining
62
Serial (hex)
DCB9B12F3830F83A
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:www.openfind.com.tw, DNS:openfind.com.tw

SHA-256 fingerprint

92:50:E9:11:6A:AE:46:E7:67:2E:60:9D:BF:00:86:A8:A1:FA:46:69:E1:18:E5:7B:86:E8:30:89:1A:5E:08:4C
Certificate extensions & PEM
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication
keyUsage
Digital Signature, Key Encipherment
crlDistributionPoints
Full Name: URI:http://crl.starfieldtech.com/sfr1v1dv_s1-1.crl
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 2.16.840.1.114414.1.7.23.1 CPS: http://certificates.starfieldtech.com/repository/
authorityInfoAccess
CA Issuers - URI:http://certificates.starfieldtech.com/repository/sf_tls_issuing_dv-r1v1.crt OCSP - URI:http://ocsp.starfieldtech.com/
authorityKeyIdentifier
99:B4:6D:DD:8D:0C:6D:FA:2D:A0:9F:22:21:E8:73:C2:18:BC:85:D9
subjectAltName
DNS:www.openfind.com.tw, DNS:openfind.com.tw
subjectKeyIdentifier
F3:3F:82:C8:40:80:5E:81:61:B9:FB:21:1E:18:EF:8D:F5:95:C1:F3
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Aug 29 22:48:05.849 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:41:94:32:10:07:44:B3:3A:35:F0:57:DC: B2:8A:6C:1E:E9:85:95:9B:5F:EC:2F:34:20:5F:02:44: 61:63:DB:9C:02:21:00:F7:F1:5A:9C:15:87:67:0F:74: 79:F3:A7:56:81:FC:7A:64:3E:30:0A:26:0A:9A:B9:2A: 1C:02:BD:EB:FA:27:64 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 : Aug 29 22:48:06.176 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:3E:05:64:65:B1:56:51:C5:C8:88:BA:63: E1:C2:60:FB:0B:F1:C6:4C:E4:F3:19:4F:53:5B:AF:BD: 42:42:2F:61:02:20:31:09:22:62:C5:19:55:15:5B:E5: D8:C7:AC:82:23:85:19:05:9B:FF:6C:C7:EB:47:92:09: 3A:6D:14:5B:D1:0A 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 : Aug 29 22:48:06.354 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:BD:5E:6E:23:DE:D4:BC:EB:94:D1:CF: 2D:DB:62:59:21:5B:F2:04:87:9B:E1:21:89:C9:37:0E: 06:B8:DC:BD:FD:02:20:19:20:4F:12:EC:D7:E9:6D:B3: 93:DC:22:EA:F2:BC:3D:FF:92:98:35:91:A5:F2:32:E5: 20:4A:13:BC:43:0E:4D
-----BEGIN CERTIFICATE-----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dgDXbX0Q0af1d8LH6V/XAL/5gskzWmXh0LMBcxfAyMVpdwAAAaBPtW/ZAAAEAwBH
MEUCIEGUMhAHRLM6NfBX3LKKbB7phZWbX+wvNCBfAkRhY9ucAiEA9/FanBWHZw90
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AT9yZ31VNy4Z2AAAAaBPtXEgAAAEAwBGMEQCID4FZGWxVlHFyIi6Y+HCYPsL8cZM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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-26T10:04:06+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Starfield Technologies CN=Starfield TLS Intermediate CA DV - R1v1
Issuer
C=US O=Starfield Technologies CN=Starfield TLS Root CA - R1
Valid from
2025-08-27T12:00:00+00:00
Expires
2040-08-23T11:59:59+00:00
Days remaining
5080
Serial (hex)
C5E225A10DF67804EC5305DCF38E5234
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

06:89:1C:34:A2:E4:68:7C:63:0B:29:85:0C:C9:F6:D4:5D:ED:39:49:1C:F8:77:C7:24:6B:6E:C6:33:58:7A:2C
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
99:B4:6D:DD:8D:0C:6D:FA:2D:A0:9F:22:21:E8:73:C2:18:BC:85:D9
authorityKeyIdentifier
65:79:A6:5B:CD:9B:07:16:A5:40:86:B7:49:8E:22:47:C6:0B:DE:4B
authorityInfoAccess
CA Issuers - URI:http://certificates.starfieldtech.com/repository/sf_tls_root-r1.crt
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.starfieldtech.com/sf_tls_root-r1.crl 
-----BEGIN CERTIFICATE-----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3oXc40Z3FTb9nHvre8eXJy3plI8u9OUOrc7v5Cr61j32eDhqsWaNAgMBAAGjggE1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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=Starfield Technologies CN=Starfield TLS Root CA - R1
Issuer
C=US ST=Arizona L=Scottsdale O=Starfield Technologies, Inc. CN=Starfield Root Certificate Authority - G2
Valid from
2025-09-24T12:00:00+00:00
Expires
2037-12-31T23:59:59+00:00
Days remaining
4114
Serial (hex)
466702AA31941FA2C196EFE6D09BAF6C
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

26:A9:3D:60:03:90:77:65:4C:0D:DA:1F:B6:34:AF:5F:F5:C1:14:C7:AC:1F:D0:44:9B:1C:9D:21:78:B0:28:FF
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
65:79:A6:5B:CD:9B:07:16:A5:40:86:B7:49:8E:22:47:C6:0B:DE:4B
authorityKeyIdentifier
7C:0C:32:1F:A7:D9:30:7F:C4:7D:68:A3:62:A8:A1:CE:AB:07:5B:27
authorityInfoAccess
CA Issuers - URI:http://certificates.starfieldtech.com/repository/sfroot-g2.crt
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2 Policy: 2.23.140.1.1
crlDistributionPoints
Full Name: URI:http://crl.starfieldtech.com/sfroot-g2.crl 
-----BEGIN CERTIFICATE-----
MIIFqjCCBJKgAwIBAgIQRmcCqjGUH6LBlu/m0JuvbDANBgkqhkiG9w0BAQsFADCB
jzELMAkGA1UEBhMCVVMxEDAOBgNVBAgTB0FyaXpvbmExEzARBgNVBAcTClNjb3R0
c2RhbGUxJTAjBgNVBAoTHFN0YXJmaWVsZCBUZWNobm9sb2dpZXMsIEluYy4xMjAw
BgNVBAMTKVN0YXJmaWVsZCBSb290IENlcnRpZmljYXRlIEF1dGhvcml0eSAtIEcy
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HzAdBgNVBAoTFlN0YXJmaWVsZCBUZWNobm9sb2dpZXMxIzAhBgNVBAMTGlN0YXJm
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CgKCAgEAvNSD5nT/Q7nsKjT/WYTPv9vp1eACaDM7U4cR+DCt3Yz6QOwbKDTwZ+io
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x7uvTkA87NU5vqOzpWtpNiXvt+DSGrFAJDyah2ia9fbS2ActrWWsBsThFt3cTHNi
xySEl8frlFP3qvWz0BaxOuNRbdSR/EQLA+FNkNt3zge5IESie/oIWGgHepNGb6Oa
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II+2LaSzPjUGN28f/HfSBpec/4sfkd6Ubw1SbP9Zq8pBlnJKznU9Muh8RXuRQJoE
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v7wgw0W/UF+s6rBwt8+XAdUUMYoZUFwJvu3N/Xj8pxIWMDalWTgD/30DPuMGIT7T
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DAECAjAHBgVngQwBATA7BgNVHR8ENDAyMDCgLqAshipodHRwOi8vY3JsLnN0YXJm
aWVsZHRlY2guY29tL3Nmcm9vdC1nMi5jcmwwDQYJKoZIhvcNAQELBQADggEBALhF
42TCewfSOa+2nSV2OzCt7A+n9KJ/6Y8F5PXW++VpYZVWy6kZMrJlDus7K3oACiKE
R+Id7BldmcKxWSw6UeKOQ74DhDTJf+KTDubHDhoCHnK1d2XWJ2W+rOacLfVnvHAv
HBsLeOP6xRT4E+5zdtpnjdW/JSEeLEGETUmEkOvoJIWQptQ2AxIuEIP3FsRneiLZ
SDOyjvtLMOe3a2q8xmiOxTlqi9QmwTV/9IfoDoqsg1C5YL4eiD0xRc1m6NvecSEW
jHIMyCiFWlzO3faUOm067YthhZwzjYLghIra11NvVpsWEgpiGPBhd2UN7nGn1M0j
dZT7YeQWOBjip238/4o=
-----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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