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

TLSv1.2

sun.ac.za · 146.232.21.213:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate CN=`*.sun.ac.za' did not match expected CN=`sun.ac.za'

Certificate verification failed

Subject
C=ZA ST=Western Cape L=Stellenbosch O=Stellenbosch University CN=*.sun.ac.za
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA OV TLS ECC
Valid from
2026-07-24T14:00:23+00:00
Expires
2027-02-08T14:00:22+00:00
Days remaining
129
Serial (hex)
4FB9D2A474A8ADF02407DB8F2E2B33AC
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:*.sun.ac.za

SHA-256 fingerprint

96:CB:1D:45:3E:76:CF:AA:C7:FD:A5:D9:7A:18:F5:E7:F4:4B:F2:A9:41:15:02:FB:5B:95:C5:BD:20:3C:6C:F0
Certificate extensions & PEM
basicConstraints
CA:FALSE
authorityKeyIdentifier
BE:B4:9D:AC:C6:CA:27:BF:4E:C7:D9:1C:83:FE:5A:4E:1E:97:07:9F
authorityInfoAccess
CA Issuers - URI:http://crt.harica.gr/HARICA-OV-TLS-Sub-E1.cer
subjectAltName
DNS:*.sun.ac.za
certificatePolicies
Policy: 2.23.140.1.2.2 Policy: 0.4.0.2042.1.7 Policy: 1.3.6.1.4.1.26513.1.1.1.2
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HARICA-OV-TLS-Sub-E1.crl
subjectKeyIdentifier
4B:2B:31:71:ED:86:96:42:06:19:F4:91:E3:DC:A1:22:38:11:29:57
keyUsage
Digital Signature
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 24 14:10:24.881 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:DF:EA:37:EA:85:CA:E8:9F:DC:8F:10: 31:A6:23:5C:7C:E5:49:95:E6:E5:CC:32:0F:26:BE:7D: B4:D7:51:1E:BF:02:21:00:DC:2F:D5:2D:88:53:9C:D4: 29:CF:7F:24:7E:AD:B0:31:3A:2A:65:49:32:21:40:0C: 22:12:17:7B:7F:75:73:DD 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 24 14:10:24.908 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:7E:8E:9C:65:2E:C3:B7:08:4D:E1:33:00: ED:74:FB:03:0D:B5:BE:A0:EF:EC:79:9E:1C:B1:39:B7: 8C:6D:4C:9F:02:21:00:FE:2F:A3:C2:BB:40:98:46:DF: DF:28:ED:B2:AF:E3:CC:AF:E5:9C:7C:8A:A6:66:49:4D: 4C:91:CC:D5:E8:70:5D 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 24 14:10:24.854 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:22:3F:EB:CF:B2:F2:CF:4B:4D:92:2D:A2: F2:F2:79:2A:55:C2:01:64:45:81:5B:5D:02:45:3B:0F: 3B:C4:3A:A7:02:20:56:DE:2D:ED:C4:D8:FD:FF:82:FE: D8:9A:AE:24:F2:41:39:BB:68:99:9D:61:61:2F:8F:00: 2A:E6:99:C0:F8:C2
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-ECDSA-AES256-SHA384 · Checked 2026-10-01T23:47:25+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA OV TLS ECC
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA TLS ECC Root CA 2021
Valid from
2021-03-19T09:33:52+00:00
Expires
2036-03-15T09:33:51+00:00
Days remaining
3452
Serial (hex)
6C83CAC4A692F3342984AF72050C8F0C
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

32:93:50:0C:AA:50:7B:1E:92:0A:44:1F:27:7B:AD:CB:B7:50:02:CA:EC:62:82:D2:3A:35:78:F7:81:7D:23:80
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://repo.harica.gr/certs/HARICA-TLS-Root-2021-ECC.cer
certificatePolicies
Policy: X509v3 Any Policy CPS: http://repo.harica.gr/documents/CPS
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HARICA-TLS-Root-2021-ECC.crl
subjectKeyIdentifier
BE:B4:9D:AC:C6:CA:27:BF:4E:C7:D9:1C:83:FE:5A:4E:1E:97:07:9F
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
1064
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-----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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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