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

uclouvain.be · 130.104.33.32:443

Verified

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

Subject
CN=uclouvain.be
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS RSA 1
Valid from
2026-07-23T13:24:18+00:00
Expires
2027-02-07T13:24:17+00:00
Days remaining
115
Serial (hex)
63BAAFF1DD1B97D83D1E4DB120916EFE
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:uclouvain.be, DNS:www.uclouvain.be, DNS:intranet.uclouvain.be

SHA-256 fingerprint

7A:1F:8A:2B:9C:1A:8F:F3:14:BF:89:E3:2A:D3:B1:39:72:A5:BB:08:D9:9A:BE:45:E0:B7:F0:9F:84:0D:11:0E
Certificate extensions & PEM
authorityKeyIdentifier
86:01:72:3F:8C:A9:70:E2:31:06:53:16:CE:01:5F:5B:79:C8:3C:3B
authorityInfoAccess
CA Issuers - URI:http://crt.harica.gr/HARICA-GEANT-TLS-R1.cer
subjectAltName
DNS:uclouvain.be, DNS:www.uclouvain.be, DNS:intranet.uclouvain.be
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-R1.crl
subjectKeyIdentifier
54:44:57:33:53:A7:96:EA:B0:71:57:7D:62:C2:1F:27:C3:D4:B0:83
keyUsage
Digital Signature, Key Encipherment
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 : Jul 23 13:34:19.809 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:AE:F3:3F:26:19:D7:09:B9:62:75:3E: 9B:D1:2C:8D:01:31:59:EB:65:F1:88:8D:D9:3A:9C:45: 5B:07:E9:1D:FB:02:21:00:8A:3C:6D:2F:70:BA:25:F4: 0D:83:9C:10:4C:04:15:FC:38:38:A6:44:5D:E0:B3:3C: 5A:7B:03:F8:44:20:A3:BF Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:A2:39:67:C6:0D:B6:46:87:C6:6F:3D:F9:99:94:76: 93:A6:A6:11:20:84:57:D5:55:E7:E3:D0:A1:D9:B6:46 Timestamp : Jul 23 13:34:19.847 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:71:D8:15:C6:C1:87:82:90:B2:46:13:26: 36:6C:7E:61:CC:CB:EB:46:1E:7E:C4:46:0F:91:7F:90: 91:44:61:5F:02:21:00:AA:51:FC:0E:5B:39:7E:1F:6C: 42:82:96:E2:07:C7:CF:4B:94:C1:05:23:8A:2E:F9:F9: CE:CD:9C:72:01:99:B5 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Jul 23 13:34:19.793 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:42:6A:FD:DF:B7:E4:88:79:91:46:56:83: 8C:3F:B1:44:30:42:2A:8D:1C:3B:3B:DB:DF:89:36:D8: DD:2D:C9:03:02:21:00:A0:79:8E:36:8F:C8:52:7D:EE: 3F:24:12:8D:6F:70:F4:99:2D:BD:16:8D:E7:B7:9D:E3: 09:D1:48:04:13:43:95
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-14T23:49:54+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS RSA 1
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA TLS RSA Root CA 2021
Valid from
2025-01-03T11:15:00+00:00
Expires
2039-12-31T11:14:59+00:00
Days remaining
4825
Serial (hex)
14D57BF3692228219A5567FA91651B22
Signature
RSA-SHA256
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

5B:67:8D:C4:40:95:A5:28:95:B6:3B:31:F2:72:27:F4:B3:6C:3E:34:74:91:BF:2B:FA:69:18:37:A5:FB:8C:79
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
authorityKeyIdentifier
0A:48:23:A6:60:A4:92:0A:33:EA:93:5B:C5:57:EA:25:4D:BD:12:EE
authorityInfoAccess
CA Issuers - URI:http://crt.harica.gr/HARICA-TLS-Root-2021-RSA.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-RSA.crl
subjectKeyIdentifier
86:01:72:3F:8C:A9:70:E2:31:06:53:16:CE:01:5F:5B:79:C8:3C:3B
keyUsage
Digital Signature, Certificate Sign, CRL Sign
-----BEGIN CERTIFICATE-----
MIIGBTCCA+2gAwIBAgIQFNV782kiKCGaVWf6kWUbIjANBgkqhkiG9w0BAQsFADBs
MQswCQYDVQQGEwJHUjE3MDUGA1UECgwuSGVsbGVuaWMgQWNhZGVtaWMgYW5kIFJl
c2VhcmNoIEluc3RpdHV0aW9ucyBDQTEkMCIGA1UEAwwbSEFSSUNBIFRMUyBSU0Eg
Um9vdCBDQSAyMDIxMB4XDTI1MDEwMzExMTUwMFoXDTM5MTIzMTExMTQ1OVowYDEL
MAkGA1UEBhMCR1IxNzA1BgNVBAoMLkhlbGxlbmljIEFjYWRlbWljIGFuZCBSZXNl
YXJjaCBJbnN0aXR1dGlvbnMgQ0ExGDAWBgNVBAMMD0dFQU5UIFRMUyBSU0EgMTCC
AaIwDQYJKoZIhvcNAQEBBQADggGPADCCAYoCggGBAKEEaZSzEzznAPk8IEa17GSG
yJzPTj4cwRY7/vcq2BPT5+IRGxQtaCdgLXIEl2cdPdIkj2eyakFmgMjAtyeju8V8
dRayQCD/bWjJ7thDlowgLljQaXirxnYbT8bzRHAhCZqBakYgi5KWw9dANLyDHGpX
UdY259ab0lWEaFE5Uu6IzQSMJOAy4l/Twym8GUiy0qMDEBFSlm31C9BXpdHKKAlh
vIjMiKoDeTWl5vZaLB2MMRGY1yW2ftPgIP0/MkX1uFITlvHmmMTngxplH1nybEIJ
FiwHg1KiLk1TprcZgeO2gxE5Lz3wTFWrsUlAzrh5xWmscWkjNi/4BpeuiT5+NExF
czboLnXOfjuci/7bsnPi1/aZN/iKNbJRnngFoLaKVMmqCS7Xo34f+BITatryQZFE
u2oDKExQGlxDBCfYMLgLucX/onpLzUSgeQITNLx6i5tGGbUYH+9Dy3GI66L/5tPj
qzlOsydki8ZYGE5SBJeWCZ2IrhUe0WzZ2b6Zhk6JAQIDAQABo4IBLTCCASkwEgYD
VR0TAQH/BAgwBgEB/wIBADAfBgNVHSMEGDAWgBQKSCOmYKSSCjPqk1vFV+olTb0S
7jBNBggrBgEFBQcBAQRBMD8wPQYIKwYBBQUHMAKGMWh0dHA6Ly9jcnQuaGFyaWNh
LmdyL0hBUklDQS1UTFMtUm9vdC0yMDIxLVJTQS5jZXIwEQYDVR0gBAowCDAGBgRV
HSAAMB0GA1UdJQQWMBQGCCsGAQUFBwMCBggrBgEFBQcDATBCBgNVHR8EOzA5MDeg
NaAzhjFodHRwOi8vY3JsLmhhcmljYS5nci9IQVJJQ0EtVExTLVJvb3QtMjAyMS1S
U0EuY3JsMB0GA1UdDgQWBBSGAXI/jKlw4jEGUxbOAV9becg8OzAOBgNVHQ8BAf8E
BAMCAYYwDQYJKoZIhvcNAQELBQADggIBABkssjQzYrOo4GMsKegaChP16yNe6Sck
cWBymM455R2rMeuQ3zlxUNOEt+KUfgueOA2urp4j6TlPbs/XxpwuN3I1f09Luk5b
+ZgRXM7obE6ZLTerVQWKoTShyl34R2XlK8pEy7+67Ht4lcJzt+K6K5gEuoPSGQDP
ef+fUfmXrFcgBMcMbtfDb9dubFKNZZxo5nAXiqhFMOIyByag3H+tOTuH8zuId9pH
RDsUpAIHJ9/W2WBfLcKav7IKRlNBRD/sPBy903J9WHPKwl8kQSDA+aa7XCYk7bJt
Eyf+7GM9F5cZ7+YyknXqnv/rtQEkTKZdQo5Us18VFe9qqj94tXbLdk7PejJYNB4O
Zlli44Ld7rtqfFlUych7gIxFOmiyxMQQYrYmUi+74lEZvfoNhuref0CupuKpz6O3
dLv6kO9T10uNdDBoBQTkge3UzHafTIe3R2o3ujXKUGPwyc9m7/FETyKLUCwSU/5O
AVOeBCU8QtkKKjM8AmbpKpe3pHWcyq3R7B3LmIALkMPTydyDfxen65IDqREbVq8N
xjhkJThUz40JqOlN6uqKqeDISj/IoucYwsqW24AlO7ZzNmohQmMi8ep23H4hBSh0
GBTe2XvkuzaNf92syK8l2HzO+13GLCjzYLTPvXTO9UpK8DGyfGZOuamuwbAnbNpE
3RfjV9IaUQGJ
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA TLS RSA Root CA 2021
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA TLS RSA Root CA 2021
Valid from
2021-02-19T10:55:38+00:00
Expires
2045-02-13T10:55:37+00:00
Days remaining
6696
Serial (hex)
39CA931CEF43F3C68E93C7F46489387E
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

D9:5D:0E:8E:DA:79:52:5B:F9:BE:B1:1B:14:D2:10:0D:32:94:98:5F:0C:62:D9:FA:BD:9C:D9:99:EC:CB:7B:1D
Certificate extensions & PEM
basicConstraints
CA:TRUE
subjectKeyIdentifier
0A:48:23:A6:60:A4:92:0A:33:EA:93:5B:C5:57:EA:25:4D:BD:12:EE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
-----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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