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

uliege.be · 139.165.240.47:443

Verified

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

Subject
CN=www.ulg.ac.be
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-09-11T09:24:37+00:00
Expires
2026-12-10T09:24:36+00:00
Days remaining
54
Serial (hex)
052416BA2DD129851FFAE16B21A968EEF69F
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:ulg.ac.be, DNS:ulg.be, DNS:uliege.be, DNS:uliege.com, DNS:uliege.eu, DNS:uliege.info, DNS:uliege.net, DNS:uliege.org, DNS:www.ulg.ac.be, DNS:www.ulg.be, DNS:www.uliege.com, DNS:www.uliege.eu, DNS:www.uliege.info, DNS:www.uliege.net, DNS:www.uliege.org

SHA-256 fingerprint

4F:42:9B:63:58:CC:C7:90:C6:23:6E:18:17:E0:A4:9A:3B:E0:18:CE:D5:B8:B8:2B:76:46:08:11:7E:6F:61:52
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
75:A3:DE:A5:51:87:AA:8E:42:46:C1:38:C6:9C:82:2A:4B:09:7B:2E
authorityKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
authorityInfoAccess
CA Issuers - URI:http://yr1.i.lencr.org/
subjectAltName
DNS:ulg.ac.be, DNS:ulg.be, DNS:uliege.be, DNS:uliege.com, DNS:uliege.eu, DNS:uliege.info, DNS:uliege.net, DNS:uliege.org, DNS:www.ulg.ac.be, DNS:www.ulg.be, DNS:www.uliege.com, DNS:www.uliege.eu, DNS:www.uliege.info, DNS:www.uliege.net, DNS:www.uliege.org
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/32.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 6C:FE:50:19:43:A8:5E:A9:16:BC:52:D1:33:E4:DC:C9: 1E:F1:41:1C:7D:25:84:20:D1:73:80:9E:18:18:EB:3A Timestamp : Sep 11 10:23:08.491 2026 GMT Extensions: 00:00:05:00:32:BF:5D:6A Signature : ecdsa-with-SHA256 30:45:02:20:4A:6B:A1:75:B5:0C:C8:97:5E:EC:83:2F: 06:A6:B8:F4:BE:76:56:4B:17:9F:C5:A6:BB:A7:10:3C: C3:5D:E7:A6:02:21:00:89:D2:E0:30:C5:0E:25:0B:DB: B3:7E:7D:B3:41:17:29:42:82:6F:E5:49:70:FE:06:8E: 18:7D:B9:D5:85:0A:AC 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 : Sep 11 10:23:08.351 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:D1:45:5C:BE:65:D6:79:8F:B6:A7:77: 6C:C6:09:FE:39:2C:D3:1B:B4:B7:13:83:EE:71:F3:89: FA:D0:39:31:45:02:20:24:78:61:16:35:89:DE:55:9E: 7C:A8:E0:18:32:88:B9:2E:8D:80:7D:87:2D:E0:6D:3C: 87:B7:E7:A3:11:7A:38
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-17T00:15:59+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR1
Issuer
C=US O=ISRG CN=Root YR
Valid from
2025-09-03T00:00:00+00:00
Expires
2028-09-02T23:59:59+00:00
Days remaining
686
Serial (hex)
A20253F15F2691C05DC1CE13B9BCCA4E
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

13:94:96:34:D9:9C:D6:FD:6A:A8:0B:C0:34:FE:FA:CC:EB:19:69:FE:EF:98:65:86:71:3E:CD:BB:05:75:8D:3F
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
authorityKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityInfoAccess
CA Issuers - URI:http://yr.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=ISRG CN=Root YR
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2026-05-13T00:00:00+00:00
Expires
2032-09-02T23:59:59+00:00
Days remaining
2147
Serial (hex)
F24B6D17F9D9AD7CB1C9FEA78782699F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

07:26:39:D0:B1:40:D5:BF:FA:E1:6A:D9:C3:F6:CC:60:86:04:06:21:F5:1E:E6:1A:6D:46:A8:91:5C:07:CF:76
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityKeyIdentifier
79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
authorityInfoAccess
CA Issuers - URI:http://x1.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://x1.c.lencr.org/ 
-----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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