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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

ac-lyon.fr · 185.75.143.93:443

Verified

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

Subject
CN=www.ac-lyon.fr
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS ECC 1
Valid from
2025-11-28T20:50:03+00:00
Expires
2026-11-28T20:50:03+00:00
Days remaining
30
Serial (hex)
7CB54BF523697547468AE423890EC1DD
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

DNS:www.ac-lyon.fr, DNS:back.ac-lyon.fr, DNS:ac-lyon.fr

SHA-256 fingerprint

4C:CE:C2:D9:1D:CD:6E:16:0A:08:C3:FB:49:40:1C:E2:93:72:7A:A4:26:19:5A:37:CC:B1:10:3C:8A:8F:B5:D3
Certificate extensions & PEM
authorityKeyIdentifier
E9:99:06:8D:17:1F:AB:FB:96:1A:5A:C8:5B:5E:5D:5E:EC:DA:9C:8F
authorityInfoAccess
CA Issuers - URI:http://crt.harica.gr/HARICA-GEANT-TLS-E1.cer OCSP - URI:http://ocsp-tls.harica.gr
subjectAltName
DNS:www.ac-lyon.fr, DNS:back.ac-lyon.fr, DNS:ac-lyon.fr
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 0.4.0.2042.1.6 Policy: 1.3.6.1.4.1.26513.1.1.1.1
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HARICA-GEANT-TLS-E1.crl
subjectKeyIdentifier
74:28:E4:81:D4:18:2C:7A:C2:C6:79:54:E1:7F:D8:38:9F:B3:4E:2A
keyUsage
Digital Signature
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : AF:67:88:3B:57:B0:4E:DD:8F:A6:D9:7E:F6:2E:A8:EB: 81:0A:C7:71:60:F0:24:5E:55:D6:0C:2F:E7:85:87:3A Timestamp : Nov 28 21:00:05.423 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:44:F0:0D:7B:C0:9F:3C:45:9A:E9:86:EC: 5C:C0:12:2F:C9:44:D9:21:E5:D4:00:84:63:EF:A5:2F: 1A:E5:5A:E4:02:21:00:B2:25:95:B1:00:97:4D:D3:A3: 02:99:A3:09:F2:4C:6C:1A:EA:98:7A:53:6B:FA:83:63: 57:60:1D:48:90:B6:F6 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 : Nov 28 21:00:05.444 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:82:9E:8B:75:8B:BC:5B:62:61:42:A3: 76:79:6F:30:2E:92:04:9F:9C:89:08:A6:2F:AD:5E:80: 92:81:08:31:CB:02:21:00:DD:5A:3E:C5:ED:B1:8F:26: 0C:B5:BA:12:1D:7E:AC:9E:E2:0C:8C:2F:EE:30:BE:A2: FA:E0:C3:EA:A0:04:E3:FD 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 : Nov 28 21:00:05.491 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:63:0C:E5:BE:76:9A:FF:F4:7D:44:A6:BC: 3F:BD:41:A2:3F:4A:CA:DE:A2:05:B5:8E:A5:10:2F:0E: CC:41:C5:83:02:21:00:FB:5A:CD:34:98:68:44:25:B1: C9:0F:9F:B1:88:1C:7A:F9:16:35:B5:8A:0B:5F:6D:5E: DC:A8:E3:5B:06:21:57
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-28T22:16:15+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS ECC 1
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA TLS ECC Root CA 2021
Valid from
2025-01-03T11:14:21+00:00
Expires
2039-12-31T11:14:20+00:00
Days remaining
4811
Serial (hex)
42FDDCE1261607E1A5E6935A400161DD
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

6C:DF:0B:A1:71:1E:85:6D:22:8B:A0:0C:A0:4C:5C:1C:3D:79:94:4C:03:7B:71:3B:15:5A:4E:E4:B4:7E:C5:3C
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
authorityKeyIdentifier
C9:1B:53:81:12:FE:04:D5:16:D1:AA:BC:9A:6F:B7:A0:95:19:6E:CA
authorityInfoAccess
CA Issuers - URI:http://crt.harica.gr/HARICA-TLS-Root-2021-ECC.cer
certificatePolicies
Policy: X509v3 Any Policy
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HARICA-TLS-Root-2021-ECC.crl
subjectKeyIdentifier
E9:99:06:8D:17:1F:AB:FB:96:1A:5A:C8:5B:5E:5D:5E:EC:DA:9C:8F
keyUsage
Digital Signature, Certificate Sign, CRL Sign
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA TLS ECC Root CA 2021
Issuer
C=GR L=Athens O=Hellenic Academic and Research Institutions Cert. Authority CN=Hellenic Academic and Research Institutions ECC RootCA 2015
Valid from
2021-09-02T07:44:37+00:00
Expires
2029-08-31T07:44:36+00:00
Days remaining
1037
Serial (hex)
716027C8857A73542DEF516C1C2EEB0F
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

50:E2:7F:90:EB:6A:F4:95:B0:E6:EE:B6:55:CC:89:44:4C:27:D3:C9:5B:68:23:FA:02:AB:DC:95:F1:63:6A:E1
Certificate extensions & PEM
basicConstraints
CA:TRUE
authorityKeyIdentifier
B4:22:0B:82:99:24:01:0E:9C:BB:E4:0E:FD:BF:FB:97:20:93:99:2A
authorityInfoAccess
CA Issuers - URI:http://repo.harica.gr/certs/HaricaECCRootCA2015.crt
certificatePolicies
Policy: X509v3 Any Policy
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HaricaECCRootCA2015.crl
subjectKeyIdentifier
C9:1B:53:81:12:FE:04:D5:16:D1:AA:BC:9A:6F:B7:A0:95:19:6E:CA
keyUsage
Digital Signature, Certificate Sign, CRL Sign
-----BEGIN CERTIFICATE-----
MIIDezCCAwGgAwIBAgIQcWAnyIV6c1Qt71FsHC7rDzAKBggqhkjOPQQDAzCBqjEL
MAkGA1UEBhMCR1IxDzANBgNVBAcTBkF0aGVuczFEMEIGA1UEChM7SGVsbGVuaWMg
QWNhZGVtaWMgYW5kIFJlc2VhcmNoIEluc3RpdHV0aW9ucyBDZXJ0LiBBdXRob3Jp
dHkxRDBCBgNVBAMTO0hlbGxlbmljIEFjYWRlbWljIGFuZCBSZXNlYXJjaCBJbnN0
aXR1dGlvbnMgRUNDIFJvb3RDQSAyMDE1MB4XDTIxMDkwMjA3NDQzN1oXDTI5MDgz
MTA3NDQzNlowbDELMAkGA1UEBhMCR1IxNzA1BgNVBAoMLkhlbGxlbmljIEFjYWRl
bWljIGFuZCBSZXNlYXJjaCBJbnN0aXR1dGlvbnMgQ0ExJDAiBgNVBAMMG0hBUklD
QSBUTFMgRUNDIFJvb3QgQ0EgMjAyMTB2MBAGByqGSM49AgEGBSuBBAAiA2IABDgI
/rGgltJ6rK9JOtDA4MM7KKrxcm1lAEeIhPyaJmuqS7psBAqIXhfyVYf8MLA04jRY
VxqEU+kw2anylnTDUR9YSTHMmE5gEYd103KUkE+bECUqqHgtvpBBWJAVcqeht6OC
AScwggEjMA8GA1UdEwEB/wQFMAMBAf8wHwYDVR0jBBgwFoAUtCILgpkkAQ6cu+QO
/b/7lyCTmSowTwYIKwYBBQUHAQEEQzBBMD8GCCsGAQUFBzAChjNodHRwOi8vcmVw
by5oYXJpY2EuZ3IvY2VydHMvSGFyaWNhRUNDUm9vdENBMjAxNS5jcnQwEQYDVR0g
BAowCDAGBgRVHSAAMB0GA1UdJQQWMBQGCCsGAQUFBwMCBggrBgEFBQcDATA9BgNV
HR8ENjA0MDKgMKAuhixodHRwOi8vY3JsLmhhcmljYS5nci9IYXJpY2FFQ0NSb290
Q0EyMDE1LmNybDAdBgNVHQ4EFgQUyRtTgRL+BNUW0aq8mm+3oJUZbsowDgYDVR0P
AQH/BAQDAgGGMAoGCCqGSM49BAMDA2gAMGUCMQCPc45gQV6pCkMR4px3k+YnF0Mo
DpXQ0+0lWz7fnplqgHn+qHmoKrE5Y/bcWucG6QQCMB/DIYjUTGAl5j07G7ZIuK3Q
ehx68VPXTwvJ9tLbh9A9SkiBmJGpiHL7Rzfxa5CptQ==
-----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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