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

panteion.gr · 194.177.218.20:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate subjectAltName did not match expected name `panteion.gr'

Certificate verification failed

Subject
C=GR L=Athens O=Panteion University of Social and Political Sciences CN=www.panteion.gr
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA Institutional TLS ECC 2
Valid from
2026-11-06T11:41:39+00:00
Expires
2027-05-24T11:41:38+00:00
Days remaining
198
Serial (hex)
457758F0EC63848BB40B6B8ADE60C811
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:www.panteion.gr

SHA-256 fingerprint

E8:E0:6B:C4:1F:83:DF:51:B3:36:0B:8E:12:0E:52:43:DE:A1:E6:BA:F1:CA:EF:40:CD:42:49:15:78:03:D2:AC
Certificate extensions & PEM
basicConstraints
CA:FALSE
authorityKeyIdentifier
77:46:8D:8D:E1:33:DF:EB:BB:B8:66:16:2E:4B:D8:B2:13:1C:59:F9
authorityInfoAccess
CA Issuers - URI:http://crt.harica.gr/HARICA-Institutional-TLS-Sub-E2.cer
subjectAltName
DNS:www.panteion.gr
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-Institutional-TLS-Sub-E2.crl
subjectKeyIdentifier
59:77:02:1F:91:3F:53:AD:47:3F:BE:62:4F:EE:2D:9A:04:5A:A0:AA
keyUsage
Digital Signature
ct_precert_scts
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 : Nov 6 11:51:40.597 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:F4:3B:37:5A:2E:C3:1C:48:0E:CA:28: 61:60:58:4B:27:C4:EA:6A:7D:20:50:AF:0E:96:A4:25: 56:60:15:42:22:02:21:00:89:46:A6:21:A8:6A:3C:EE: A2:54:C4:75:32:9A:CD:48:73:07:72:E5:2B:15:73:D2: 46:E5:39:F9:1E:AA:4D:22 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 : Nov 6 11:51:40.637 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:7C:43:76:D1:B8:D3:18:B1:08:69:E1:C3: C4:16:38:CD:75:21:88:35:C2:18:70:95:F4:B0:27:0C: 90:91:53:58:02:20:04:35:E1:A9:B4:0A:74:28:20:F2: 87:1D:D3:34:6F:BB:E2:6D:7A:83:9A:E0:88:B3:7D:2E: 00:BB:C8:7F:DE:5E Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 00:1A:5D:1A:1C:2D:93:75:B6:48:55:78:F8:2F:71:A1: AE:6E:EF:39:7D:29:7C:8A:E3:15:7B:CA:DE:E1:A0:1E Timestamp : Nov 6 11:51:40.624 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:6A:7E:13:00:BC:7F:71:C5:6D:D5:5C:11: BE:6F:47:26:1F:F9:91:BC:D8:91:75:C6:18:CC:1C:9B: F2:13:A0:8D:02:20:0F:FC:CC:22:1F:0E:A9:9F:DD:41: 7A:78:73:B8:63:0A:8D:7F:ED:4A:08:21:8B:9A:00:DF: E7:8A:D0:8A:9B:8E
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-07T07:58:51+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA Institutional TLS ECC 2
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA TLS ECC Root CA 2021
Valid from
2022-06-29T11:11:25+00:00
Expires
2037-06-25T11:11:24+00:00
Days remaining
3883
Serial (hex)
7A38D3288A0548F2C6EC077C4F4A865E
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

94:80:2F:1B:0D:B2:74:26:29:3B:12:C8:77:58:80:EF:F0:34:5E:66:20:07:9F:71:4A:75:13:E1:94:65:79:C3
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://crt.harica.gr/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
77:46:8D:8D:E1:33:DF:EB:BB:B8:66:16:2E:4B:D8:B2:13:1C:59:F9
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
1027
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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