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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

srce.hr · 161.53.2.88:443

Verified

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

Subject
C=HR L=Zagreb O=Sveučilište u Zagrebu - Sveučilišni računski centar CN=www.srce.hr
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS ECC 1
Valid from
2026-10-01T08:56:19+00:00
Expires
2027-04-18T08:56:18+00:00
Days remaining
164
Serial (hex)
4BD155023549F5883CA57852D4135619
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:www.srce.hr, DNS:srce.hr

SHA-256 fingerprint

2E:C5:CA:55:60:CF:F6:A3:64:25:48:CA:3C:57:D2:59:62:98:14:A6:82:AF:93:71:2A:8A:6E:18:7D:DE:84:42
Certificate extensions & PEM
basicConstraints
CA:FALSE
authorityKeyIdentifier
E9:99:06:8D:17:1F:AB:FB:96:1A:5A:C8:5B:5E:5D:5E:EC:DA:9C:8F
authorityInfoAccess
CA Issuers - URI:http://crt.harica.gr/HARICA-GEANT-TLS-E1.cer
subjectAltName
DNS:www.srce.hr, DNS:srce.hr
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-GEANT-TLS-E1.crl
subjectKeyIdentifier
3A:56:65:87:0E:C6:70:7C:82:55:F2:80:06:DA:35:57:FF:71:67:B8
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 : Oct 1 09:06:21.445 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:A7:30:6B:C0:F5:EB:5B:D8:62:6E:62: 1F:0C:8A:E3:B7:AF:40:80:08:AB:FC:7B:1C:5B:2C:D3: 2E:09:F5:6B:B9:02:20:5F:A7:8E:3A:58:31:3A:49:EA: 4A:CD:DF:D9:D4:85:7C:B8:54:7E:B0:AB:DA:C7:A8:45: A1:81:A0:01:1D:03:50 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 : Oct 1 09:06:21.472 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:58:B7:79:35:0B:4D:AD:34:F3:62:49:FD: A8:9C:67:42:12:23:14:50:6B:4D:0C:C4:2F:FE:CC:0C: 81:CB:59:9A:02:20:2D:20:2F:EF:97:B2:E7:2D:76:68: 9F:09:43:0C:51:41:A4:8E:27:8E:FE:8D:98:42:82:FF: 6A:E7:1A:D9:00:4E 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 : Oct 1 09:06:21.445 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:76:87:8B:00:9D:A7:1B:1C:A4:C1:45:54: 74:C9:42:90:60:42:39:7F:72:54:42:C4:FD:B8:5A:6E: 29:FE:AA:01:02:21:00:F2:FD:F8:9C:B5:31:41:BC:4A: 16:6D:21:82:E9:FC:BD:8A:22:79:A3:BD:11:08:78:F9: F3:79:91:F4:8F:18:C0
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-04T12:04:26+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS ECC 1
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA TLS ECC Root CA 2021
Valid from
2025-01-03T11:14:21+00:00
Expires
2039-12-31T11:14:20+00:00
Days remaining
4804
Serial (hex)
42FDDCE1261607E1A5E6935A400161DD
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

6C:DF:0B:A1:71:1E:85:6D:22:8B:A0:0C:A0:4C:5C:1C:3D:79:94:4C:03:7B:71:3B:15:5A:4E:E4:B4:7E:C5:3C
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
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HARICA-TLS-Root-2021-ECC.crl
subjectKeyIdentifier
E9:99:06:8D:17:1F:AB:FB:96:1A:5A:C8:5B:5E:5D:5E:EC:DA:9C:8F
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
1030
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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