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THE CERTIFICATE BEHIND THE CONNECTION

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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

opgn.net · 103.12.241.5:443

Verified

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

Subject
CN=*.opgn.net
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV R36
Valid from
2026-01-02T00:00:00+00:00
Expires
2027-02-02T23:59:59+00:00
Days remaining
81
Serial (hex)
9F2B0EC7D39020E40E9E8D0885718C11
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.opgn.net, DNS:opgn.net

SHA-256 fingerprint

9F:D9:F2:0B:1C:E5:F1:22:28:D4:4F:15:07:D3:E9:9D:E5:4C:DD:B3:01:A4:E8:E4:60:57:84:40:C7:E6:B6:0B
Certificate extensions & PEM
authorityKeyIdentifier
68:C0:12:16:18:0E:AF:CE:F6:87:A6:32:57:A3:46:51:5D:CB:07:27
subjectKeyIdentifier
3F:7E:42:06:6D:28:A8:75:BF:13:8B:5D:1D:A1:B7:94:44:E6:18:7E
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/SectigoPublicServerAuthenticationCADVR36.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:*.opgn.net, DNS:opgn.net
ct_precert_scts
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 : Jan 2 09:24:37.642 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:D4:1C:66:37:B7:AF:32:F1:A9:19:6F: D4:48:C0:94:41:C3:A0:C5:88:B8:98:90:D9:28:DD:63: B5:DD:A5:5B:BF:02:20:24:82:AB:37:04:00:EB:1D:6F: 18:57:9F:1A:EC:DE:07:35:33:55:EF:D8:19:2E:1F:22: CB:B2:F3:BC:F4:D3:8B Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 8E:CA:47:0B:AC:DE:6A:F3:A2:06:B0:A4:7A:84:B7:46: FE:1F:C6:BF:95:3E:25:E6:9B:4E:E4:02:48:F3:C6:E8 Timestamp : Jan 2 09:24:38.186 2026 GMT Extensions: 00:00:05:00:00:FB:FD:FD Signature : ecdsa-with-SHA256 30:45:02:20:07:F9:73:95:74:5A:62:42:74:01:85:85: 13:AC:2B:C0:87:4F:04:BA:90:72:20:A3:4E:23:D1:D0: 27:9B:30:D4:02:21:00:8B:07:87:67:E7:2F:62:B4:E2: 1F:72:67:52:CA:0B:03:30:3A:F2:1A:E3:46:E5:41:CF: 43:53:68:58:C7:67:5E Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90: 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59 Timestamp : Jan 2 09:24:37.650 2026 GMT Extensions: 00:00:05:00:00:06:88:CA Signature : ecdsa-with-SHA256 30:45:02:21:00:CD:D5:CB:41:37:08:6E:DF:5C:0F:97: AB:11:06:5C:4C:69:FE:79:20:6D:B5:5F:99:BB:E3:3C: 69:6E:83:5A:D6:02:20:10:78:03:44:0B:67:17:E1:73: 29:FA:BE:24:38:DA:77:3F:2A:D7:88:39:01:3D:32:B2: BE:5D:17:BF:56:85:C0
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-SHA384 · Checked 2026-11-13T21:20:35+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV R36
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Valid from
2021-03-22T00:00:00+00:00
Expires
2036-03-21T23:59:59+00:00
Days remaining
3416
Serial (hex)
397A66CC2756362E0DAA87CA6EABE3B1
Signature
RSA-SHA384
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

8C:54:C3:34:B6:6B:A4:E4:26:77:2A:F4:A3:F9:13:6C:19:A1:AE:C7:29:FD:B2:8C:53:5C:07:A5:A4:EF:22:E0
Certificate extensions & PEM
authorityKeyIdentifier
56:73:58:64:95:F9:92:1A:B0:12:2A:04:62:79:A1:40:15:88:21:49
subjectKeyIdentifier
68:C0:12:16:18:0E:AF:CE:F6:87:A6:32:57:A3:46:51:5D:CB:07:27
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.sectigo.com/SectigoPublicServerAuthenticationRootR46.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationRootR46.p7c OCSP - URI:http://ocsp.sectigo.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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