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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

f-secure.com · 184.24.21.171:443

Verified

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

Subject
C=FI L=Helsinki O=F-Secure Oyj CN=f-secure.com
Issuer
C=US O=DigiCert Inc CN=DigiCert Global G3 TLS ECC SHA384 2020 CA1
Valid from
2026-09-28T00:00:00+00:00
Expires
2027-04-14T23:59:59+00:00
Days remaining
174
Serial (hex)
0869C76FDD42A7C861E11F2DE8F806E3
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:f-secure.com, DNS:www.f-secure.com

SHA-256 fingerprint

1E:E0:9E:BE:7D:FE:41:86:DE:5A:8D:D0:2A:A2:45:7B:E5:80:AF:A1:C0:C3:D3:37:CA:43:91:5D:D0:C2:79:02
Certificate extensions & PEM
authorityKeyIdentifier
8A:23:EB:9E:6B:D7:F9:37:5D:F9:6D:21:39:76:9A:A1:67:DE:10:A8
subjectKeyIdentifier
8A:37:00:8E:E4:A0:C2:24:9D:AE:39:7F:C6:26:C0:9C:2C:79:D4:72
subjectAltName
DNS:f-secure.com, DNS:www.f-secure.com
certificatePolicies
Policy: 2.23.140.1.2.2 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Agreement
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalG3TLSECCSHA3842020CA1-2.crl Full Name: URI:http://crl4.digicert.com/DigiCertGlobalG3TLSECCSHA3842020CA1-2.crl
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalG3TLSECCSHA3842020CA1-2.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 13:01:52.645 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:20:15:74:80:BA:70:13:35:10:BD:13:7F: 1E:5E:46:B7:E4:5E:30:B6:C6:1B:AE:C1:5D:89:BC:5D: ED:C7:6C:35:02:20:27:F2:03:80:49:1D:37:A8:1B:74: 54:E6:7F:06:08:CA:21:6A:68:5C:8C:65:29:59:4B:D0: 75:7C:59:5F:EA:0D 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 13:01:52.649 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:FF:67:5E:2F:ED:A7:0F:A9:60:EB:F2: 0F:E2:32:36:CA:1D:DC:0A:32:DD:E3:E4:06:79:DC:77: 19:32:79:47:10:02:20:3C:F7:9D:23:6E:03:17:E3:82: 7B:9D:6C:7F:B3:A1:3D:78:45:35:35:5A:69:88:F1:3B: 1A:14:75:C7:E1:72:17 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Sep 28 13:01:52.722 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:FD:F9:33:AE:30:88:F6:9F:7C:31:07: 33:F1:23:0A:8E:ED:DF:47:36:D4:61:2D:E7:D6:A9:6B: E7:92:45:98:5F:02:21:00:E6:8F:24:18:3B:96:AD:EA: 69:69:3F:0F:13:79:47:C2:00:35:0E:E8:70:76:BA:1A: EF:1C:6B:5B:1E:7A:9E:B7
-----BEGIN CERTIFICATE-----
MIIFVzCCBN2gAwIBAgIQCGnHb91Cp8hh4R8t6PgG4zAKBggqhkjOPQQDAzBZMQsw
CQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMTMwMQYDVQQDEypEaWdp
Q2VydCBHbG9iYWwgRzMgVExTIEVDQyBTSEEzODQgMjAyMCBDQTEwHhcNMjYwOTI4
MDAwMDAwWhcNMjcwNDE0MjM1OTU5WjBOMQswCQYDVQQGEwJGSTERMA8GA1UEBxMI
SGVsc2lua2kxFTATBgNVBAoTDEYtU2VjdXJlIE95ajEVMBMGA1UEAxMMZi1zZWN1
cmUuY29tMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEHbi/vUb8H++9ntbs8M07
Dcby/ur1QeGDdeCz/2suAcKvTKYEob68YjWxa77TZ3j574vvWe5sgOiKAeNmNRXm
K6OCA5AwggOMMB8GA1UdIwQYMBaAFIoj655r1/k3XfltITl2mqFn3hCoMB0GA1Ud
DgQWBBSKNwCO5KDCJJ2uOX/GJsCcLHnUcjApBgNVHREEIjAgggxmLXNlY3VyZS5j
b22CEHd3dy5mLXNlY3VyZS5jb20wPgYDVR0gBDcwNTAzBgZngQwBAgIwKTAnBggr
BgEFBQcCARYbaHR0cDovL3d3dy5kaWdpY2VydC5jb20vQ1BTMA4GA1UdDwEB/wQE
AwIDiDATBgNVHSUEDDAKBggrBgEFBQcDATCBnwYDVR0fBIGXMIGUMEigRqBEhkJo
dHRwOi8vY3JsMy5kaWdpY2VydC5jb20vRGlnaUNlcnRHbG9iYWxHM1RMU0VDQ1NI
QTM4NDIwMjBDQTEtMi5jcmwwSKBGoESGQmh0dHA6Ly9jcmw0LmRpZ2ljZXJ0LmNv
bS9EaWdpQ2VydEdsb2JhbEczVExTRUNDU0hBMzg0MjAyMENBMS0yLmNybDCBhwYI
KwYBBQUHAQEEezB5MCQGCCsGAQUFBzABhhhodHRwOi8vb2NzcC5kaWdpY2VydC5j
b20wUQYIKwYBBQUHMAKGRWh0dHA6Ly9jYWNlcnRzLmRpZ2ljZXJ0LmNvbS9EaWdp
Q2VydEdsb2JhbEczVExTRUNDU0hBMzg0MjAyMENBMS0yLmNydDAMBgNVHRMBAf8E
AjAAMIIBfgYKKwYBBAHWeQIEAgSCAW4EggFqAWgAdQBMY9yY5Zwdq4j2Hoo93q6P
q0SjN3tfm5TD+6Gc/MG+JgAAAaDoG4SFAAAEAwBGMEQCICAVdIC6cBM1EL0Tfx5e
RrfkXjC2xhuuwV2JvF3tx2w1AiAn8gOASR03qBt0VOZ/BgjKIWpoXIxlKVlL0HV8
WV/qDQB2ANbVjanQF1Pzakqgx1dJAq/rx9ws04zZ92TIDIkZHp8CAAABoOgbhIkA
AAQDAEcwRQIhAP9nXi/tpw+pYOvyD+IyNsod3Aoy3ePkBnncdxkyeUcQAiA8950j
bgMX44J7nWx/s6E9eEU1NVppiPE7GhR1x+FyFwB3AByfaCzp+vBFaVD4G5aKh93b
MhDYTObIsuOCUkrEz1mfAAABoOgbhNIAAAQDAEgwRgIhAP35M64wiPaffDEHM/Ej
Co7t30c21GEt59apa+eSRZhfAiEA5o8kGDuWreppaT8PE3lHwgA1Duhwdroa7xxr
Wx56nrcwCgYIKoZIzj0EAwMDaAAwZQIwPXHe3MUTFhf2lxlk26A8CClpRPCBYqtP
ToexyhhIyF17VSpsov1/H0zmami1vBVJAjEA+rAd4XmZoj6U0zwowKPbwVXKqCBQ
ERUTzH4mbGnYDtOmZ/5ViVM43PayTu63L/G7
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-22T19:09:44+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc CN=DigiCert Global G3 TLS ECC SHA384 2020 CA1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G3
Valid from
2021-04-14T00:00:00+00:00
Expires
2031-04-13T23:59:59+00:00
Days remaining
1634
Serial (hex)
0B00E92D4D6D731FCA3059C7CB1E1886
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

05:87:D6:BD:28:19:58:7A:B9:0F:B5:96:48:0A:57:93:BD:9F:75:06:A3:EA:CE:73:F5:EA:B3:66:01:7F:E2:59
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
8A:23:EB:9E:6B:D7:F9:37:5D:F9:6D:21:39:76:9A:A1:67:DE:10:A8
authorityKeyIdentifier
B3:DB:48:A4:F9:A1:C5:D8:AE:36:41:CC:11:63:69:62:29:BC:4B:C6
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/DigiCertGlobalRootG3.crt
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG3.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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