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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

TLSv1.2

mail.roedu.net · 46.243.112.34:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed

Certificate verification failed

Subject
C=RO L=București O=Agentia A.R.N.I.E.C. CN=mail.roedu.net
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS ECC 1
Valid from
2026-09-14T09:07:25+00:00
Expires
2027-04-01T09:07:24+00:00
Days remaining
183
Serial (hex)
B766AACF25FB57171E0DCBD46BBF63
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:mail.roedu.net, DNS:mail.nren.ro

SHA-256 fingerprint

DD:56:B6:D1:1F:60:28:7F:A9:A2:A7:BA:C1:1B:D9:AF:CB:1C:6B:5D:77:16:2A:B6:8E:9D:20:47:4F:17:C9:46
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:mail.roedu.net, DNS:mail.nren.ro
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
BB:9E:32:A1:04:D6:58:F9:2E:3A:FD:67:A3:57:07:72:88:98:55:9B
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 : Sep 14 09:17:27.461 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:3D:59:9B:D4:FD:42:8C:48:F6:AE:7F:BB: F2:97:9A:42:E1:85:1E:3D:68:FB:82:12:75:A3:2D:41: 9C:8F:81:A5:02:20:77:A1:64:70:BD:9A:C5:7A:3E:5A: 70:F9:EA:98:E3:CF:F4:F3:98:20:22:D1:CA:AE:94:D0: B4:A1:69:9E:86:0D 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 14 09:17:27.494 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:6D:98:48:00:B9:55:0E:54:DE:EF:BC:25: 46:08:C3:CD:BC:BA:CC:A2:27:D8:EE:3C:24:7C:B9:D5: 6E:26:F2:FE:02:21:00:CF:BF:CB:7E:75:89:F5:A9:4B: 9C:2A:A0:1B:FB:00:26:A4:64:A6:5A:BD:24:5A:9B:DA: C2:64:C0:83:0A:AD:44 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 : Sep 14 09:17:27.444 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:68:B2:56:61:70:52:23:65:EC:50:2A:C5: B2:85:82:56:6A:DF:5A:1F:24:77:B4:D7:DD:C5:73:95: D0:7C:68:91:02:21:00:D2:80:78:52:A1:11:4D:31:B6: 53:1E:B7:D4:1C:7C:A7:A4:CE:81:56:2A:84:BD:82:A1: 46:2A:2F:DF:A8:3D:30
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-ECDSA-AES128-GCM-SHA256 · Checked 2026-09-29T18:38:17+00:00

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

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