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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

jisc.ac.uk · 104.18.29.104:443

Verified

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

Subject
C=GB ST=City of Bristol O=Jisc CN=jisc.ac.uk
Issuer
C=US O=SSL Corporation CN=SSL.com TLS Issuing ECC CA R2
Valid from
2026-09-09T10:27:11+00:00
Expires
2027-03-26T10:27:11+00:00
Days remaining
183
Serial (hex)
1FB0EEF959A31F6E193288C83D2E544B
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:jisc.ac.uk, DNS:www.jisc.ac.uk

SHA-256 fingerprint

02:0F:9C:34:7A:41:22:16:B5:45:FD:5B:93:66:AE:A9:74:1B:42:CE:E6:BA:08:7D:C8:0B:88:35:CD:05:7F:6F
Certificate extensions & PEM
basicConstraints
CA:FALSE
authorityKeyIdentifier
4E:B9:52:5A:B1:8F:7E:D6:30:53:43:E5:CA:5D:A2:04:8C:4C:14:F4
authorityInfoAccess
CA Issuers - URI:http://cert.ssl.com/SSL.com-TLS-I-ECC-R2.cer OCSP - URI:http://ocsps.ssl.com
subjectAltName
DNS:jisc.ac.uk, DNS:www.jisc.ac.uk
certificatePolicies
Policy: 2.23.140.1.2.2 Policy: 1.3.6.1.4.1.38064.1.3.1.2
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crls.ssl.com/SSL.com-TLS-I-ECC-R2.crl
subjectKeyIdentifier
99:81:56:B6:C6:3A:E1:E9:B6:22:5F:CC:DE:70:51:BD:25:FD:D9:BC
keyUsage
Digital Signature
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 9 10:37:12.610 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:72:D5:D2:81:8B:88:D2:42:E6:95:1D:15: 6E:B1:26:62:1D:C1:E7:FE:A8:4E:2D:97:4A:30:D5:8B: BA:E0:AE:42:02:21:00:C4:06:36:81:69:F4:AB:93:EE: D2:94:40:66:0D:13:0F:77:9E:D9:6C:FC:71:40:26:EC: DB:35:08:34:AC:2C:61 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 : Sep 9 10:37:12.585 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:F0:51:D0:E4:92:33:18:29:DC:07:68: 18:56:AC:99:76:00:0E:30:BF:B6:A6:AD:66:00:2A:DB: 78:27:93:3E:93:02:21:00:F5:04:EA:E1:F8:D4:D9:85: C6:A1:29:9E:B6:17:DE:18:C7:B2:B5:9F:D8:07:84:40: 73:0B:72:85:CD:29:A4:3D 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 9 10:37:12.599 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:BB:44:A2:A5:7A:7D:B5:62:5D:41:A4: 34:29:04:79:42:5C:29:79:E2:67:4C:54:BF:6F:D1:1F: 46:C9:19:E7:0F:02:21:00:A7:AE:54:FC:CD:F3:62:97: 54:5C:34:FA:57:5B:3D:9F:EA:0E:20:12:28:25:50:AE: 08:0C:A1:86:0C:88:35:B1
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-23T15:51:49+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=SSL Corporation CN=SSL.com TLS Issuing ECC CA R2
Issuer
C=GB ST=Greater Manchester L=Salford O=Comodo CA Limited CN=AAA Certificate Services
Valid from
2024-06-21T00:00:00+00:00
Expires
2028-12-31T23:59:59+00:00
Days remaining
830
Serial (hex)
738311429F73089712CD4AFD6D16FADD
Signature
RSA-SHA256
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

2D:C7:DD:C4:40:B6:33:22:74:86:8C:5E:1D:F5:D1:5B:D7:1E:5A:18:61:D2:2B:61:81:BC:1C:2C:BF:A3:2B:34
Certificate extensions & PEM
authorityKeyIdentifier
A0:11:0A:23:3E:96:F1:07:EC:E2:AF:29:EF:82:A5:7F:D0:30:A4:B4
subjectKeyIdentifier
4E:B9:52:5A:B1:8F:7E:D6:30:53:43:E5:CA:5D:A2:04:8C:4C:14:F4
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.3.6.1.4.1.38064.1.3.1.1
crlDistributionPoints
Full Name: URI:http://crl.comodoca.com/AAACertificateServices.crl
authorityInfoAccess
OCSP - URI:http://ocsp.comodoca.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.

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