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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 · 104.18.28.104:443

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
138
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 2026-11-07T23:26:20+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=SSL Corporation CN=SSL.com TLS Issuing ECC CA R2
Issuer
C=US O=SSL Corporation CN=SSL.com TLS ECC Root CA 2022
Valid from
2022-10-21T17:01:46+00:00
Expires
2032-10-18T17:01:45+00:00
Days remaining
2171
Serial (hex)
5D7443B994D321F267F204F1844AC732
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

7F:3E:E6:36:62:36:ED:E6:C1:F7:C2:1C:44:3C:64:4D:32:15:3E:DA:A9:35:7C:3A:6D:A8:79:CD:F2:A6:B0:B6
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
authorityKeyIdentifier
89:8F:2F:A3:E8:2B:A0:14:54:7B:F3:56:B8:26:5F:67:38:0B:9C:D0
authorityInfoAccess
CA Issuers - URI:http://cert.ssl.com/SSLcom-TLS-Root-2022-ECC.cer
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.ssl.com/repository
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crls.ssl.com/SSLcom-TLS-Root-2022-ECC.crl
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
-----BEGIN CERTIFICATE-----
MIIDMjCCArmgAwIBAgIQXXRDuZTTIfJn8gTxhErHMjAKBggqhkjOPQQDAzBOMQsw
CQYDVQQGEwJVUzEYMBYGA1UECgwPU1NMIENvcnBvcmF0aW9uMSUwIwYDVQQDDBxT
U0wuY29tIFRMUyBFQ0MgUm9vdCBDQSAyMDIyMB4XDTIyMTAyMTE3MDE0NloXDTMy
MTAxODE3MDE0NVowTzELMAkGA1UEBhMCVVMxGDAWBgNVBAoMD1NTTCBDb3Jwb3Jh
dGlvbjEmMCQGA1UEAwwdU1NMLmNvbSBUTFMgSXNzdWluZyBFQ0MgQ0EgUjIwdjAQ
BgcqhkjOPQIBBgUrgQQAIgNiAATW47D5Jj9R0bn6C9WsOHGBS8DYaqCkMWxUiekw
mabE+rDw7gGw4vRhyj/MFuC+qO4fj3zn6CKTaynRLe7hFUfc2/Fnql2gPOO2na5q
RxcAt45CH4r36BYtDsEuaKMMMbWjggFZMIIBVTASBgNVHRMBAf8ECDAGAQH/AgEA
MB8GA1UdIwQYMBaAFImPL6PoK6AUVHvzVrgmX2c4C5zQMEwGCCsGAQUFBwEBBEAw
PjA8BggrBgEFBQcwAoYwaHR0cDovL2NlcnQuc3NsLmNvbS9TU0xjb20tVExTLVJv
b3QtMjAyMi1FQ0MuY2VyMD8GA1UdIAQ4MDYwNAYEVR0gADAsMCoGCCsGAQUFBwIB
Fh5odHRwczovL3d3dy5zc2wuY29tL3JlcG9zaXRvcnkwHQYDVR0lBBYwFAYIKwYB
BQUHAwIGCCsGAQUFBwMBMEEGA1UdHwQ6MDgwNqA0oDKGMGh0dHA6Ly9jcmxzLnNz
bC5jb20vU1NMY29tLVRMUy1Sb290LTIwMjItRUNDLmNybDAdBgNVHQ4EFgQUTrlS
WrGPftYwU0Plyl2iBIxMFPQwDgYDVR0PAQH/BAQDAgGGMAoGCCqGSM49BAMDA2cA
MGQCMHVinPKrbaBpWlm+p/Geb1d2b+E97rrzMS2OBv0ubUsAYHjyKnncnNfenNdQ
WF4YAQIwcKGifQ4alo9dEuJvkhGrazPmEE3scNd+EKvX5v9LuIzO6sbFuMOpCptD
9M3cjzDM
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=SSL Corporation CN=SSL.com TLS ECC Root CA 2022
Issuer
C=US O=SecureTrust Corporation CN=SecureTrust CA
Valid from
2025-12-17T11:25:46+00:00
Expires
2029-12-30T17:25:46+00:00
Days remaining
1148
Serial (hex)
07EB4281BE1A1011E552C13831E2947E9AF848
Signature
RSA-SHA256
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

46:9A:56:24:CB:F1:25:C2:9B:1C:73:AA:4D:05:D4:B2:BF:4F:84:00:B5:D5:69:E9:A4:CA:55:4A:B4:C4:FA:F5
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
subjectKeyIdentifier
89:8F:2F:A3:E8:2B:A0:14:54:7B:F3:56:B8:26:5F:67:38:0B:9C:D0
authorityKeyIdentifier
42:32:B6:16:FA:04:FD:FE:5D:4B:7A:C3:FD:F7:4C:40:1D:5A:43:AF
certificatePolicies
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 Policy: 1.3.6.1.4.1.38064.1.3.1.1 Policy: 1.3.6.1.4.1.38064.1.3.1.2 Policy: 1.3.6.1.4.1.38064.1.3.1.3 Policy: 1.3.6.1.4.1.38064.1.3.1.4 Policy: 1.3.6.1.4.1.38064.1.3.1.5 Policy: 1.3.6.1.4.1.38064.1.3.1.6
crlDistributionPoints
Full Name: URI:http://crl.sslsecuretrust.com/STCA.crl
authorityInfoAccess
OCSP - URI:http://ocsp.sslsecuretrust.com/ CA Issuers - URI:http://certs.sslsecuretrust.com/issuers/STCA.crt
-----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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