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

unideb.hu · 193.225.40.246:443

Verified

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

Subject
CN=unideb.hu
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS RSA 1
Valid from
2026-08-25T21:00:44+00:00
Expires
2027-03-12T21:00:43+00:00
Days remaining
147
Serial (hex)
051AEBB01BE9EF08A3C89B2F6CEBCB27
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:unideb.hu, DNS:www.unideb.hu, DNS:www-new.unideb.hu

SHA-256 fingerprint

40:3D:0B:18:D5:A0:5D:06:F1:5B:5A:5C:C3:2F:8E:0A:EE:91:1A:A4:9E:99:AB:FC:DA:58:7D:14:E4:EF:6E:4B
Certificate extensions & PEM
authorityKeyIdentifier
86:01:72:3F:8C:A9:70:E2:31:06:53:16:CE:01:5F:5B:79:C8:3C:3B
authorityInfoAccess
CA Issuers - URI:http://crt.harica.gr/HARICA-GEANT-TLS-R1.cer
subjectAltName
DNS:unideb.hu, DNS:www.unideb.hu, DNS:www-new.unideb.hu
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 0.4.0.2042.1.6 Policy: 1.3.6.1.4.1.26513.1.1.1.1
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HARICA-GEANT-TLS-R1.crl
subjectKeyIdentifier
62:45:86:01:73:60:32:E7:1E:EB:67:EE:89:78:F9:6F:02:CB:43:C2
keyUsage
Digital Signature, Key Encipherment
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 : Aug 25 21:10:45.912 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:2A:D8:70:23:71:9D:DD:21:A9:BD:DC:23: 55:39:F8:E4:01:25:CA:44:0B:E3:C0:AC:87:6A:17:C2: D4:42:01:28:02:21:00:CC:01:FB:0C:B7:5C:55:37:61: 6E:AB:A0:8E:03:4B:BB:8A:A3:35:18:A9:1E:23:47:C1: A3:27:16:F3:05:7C:18 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 : Aug 25 21:10:45.734 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:A1:F2:1D:17:A6:D7:20:04:80:EA:BB: 1B:45:55:A8:07:A1:AF:B8:C6:C3:67:FA:98:E8:67:B0: 6A:36:C3:79:E3:02:21:00:E9:AF:29:B0:BF:50:1A:CC: C4:4F:89:49:00:00:94:FB:D2:8F:6D:47:5C:5F:97:A9: F4:EF:30:3B:59:94:F0:11 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 : Aug 25 21:10:45.806 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:A0:E8:AC:08:A7:C6:C3:A2:03:47:7F: B0:8F:C9:AF:86:A9:AE:35:AC:CD:49:86:B6:73:59:84: B5:A3:82:DC:C7:02:21:00:A0:CD:82:FF:D0:84:F4:13: 32:33:26:11:5C:3D:DB:7F:9C:89:35:9A:A4:56:DB:DD: 5C:06:51:90:28:86:36:25
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-15T22:48:03+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS RSA 1
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA TLS RSA Root CA 2021
Valid from
2025-01-03T11:15:00+00:00
Expires
2039-12-31T11:14:59+00:00
Days remaining
4824
Serial (hex)
14D57BF3692228219A5567FA91651B22
Signature
RSA-SHA256
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

5B:67:8D:C4:40:95:A5:28:95:B6:3B:31:F2:72:27:F4:B3:6C:3E:34:74:91:BF:2B:FA:69:18:37:A5:FB:8C:79
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
authorityKeyIdentifier
0A:48:23:A6:60:A4:92:0A:33:EA:93:5B:C5:57:EA:25:4D:BD:12:EE
authorityInfoAccess
CA Issuers - URI:http://crt.harica.gr/HARICA-TLS-Root-2021-RSA.cer
certificatePolicies
Policy: X509v3 Any Policy
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HARICA-TLS-Root-2021-RSA.crl
subjectKeyIdentifier
86:01:72:3F:8C:A9:70:E2:31:06:53:16:CE:01:5F:5B:79:C8:3C:3B
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 RSA Root CA 2021
Issuer
C=GR L=Athens O=Hellenic Academic and Research Institutions Cert. Authority CN=Hellenic Academic and Research Institutions RootCA 2015
Valid from
2021-09-02T07:41:55+00:00
Expires
2029-08-31T07:41:54+00:00
Days remaining
1050
Serial (hex)
2A6086D4D4DE45C95E4B98FBBF2FBF26
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

4A:CD:8D:C6:02:0A:54:5A:85:89:43:A5:53:B5:E0:F3:FC:5B:85:9A:EA:17:46:65:0D:69:CF:12:10:F9:56:D8
Certificate extensions & PEM
basicConstraints
CA:TRUE
authorityKeyIdentifier
71:15:67:C8:C8:C9:BD:75:5D:72:D0:38:18:6A:9D:F3:71:24:54:0B
authorityInfoAccess
CA Issuers - URI:http://repo.harica.gr/certs/HaricaRootCA2015.crt
certificatePolicies
Policy: X509v3 Any Policy
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HaricaRootCA2015.crl
subjectKeyIdentifier
0A:48:23:A6:60:A4:92:0A:33:EA:93:5B:C5:57:EA:25:4D:BD:12:EE
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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