Apex, subdomain, or URL. We figure it out.

Results for

dfn.de

TLS certificate

The certificate is trusted and in date.

Valid97 days left

Certificate

Issuer
GEANT TLS RSA 1 (Hellenic Academic and Research Institutions CA)
Subject
dfn.de

Validity

Valid from
Sep 09, 2025
Valid to
Sep 09, 2026

Connection

Protocol
TLSv1.3
Key
RSA 4096
Cipher
TLS_AES_256_GCM_SHA384 (TLSv1.3)

Subject alternative names (2)

  • dfn.de
  • www.dfn.de

Chain

  1. 01

    dfn.de (Verein z. Foerderung eines Deutschen Forschungsnetzes DFN-Verein)

    issued by GEANT TLS RSA 1 (Hellenic Academic and Research Institutions CA)

  2. 02

    GEANT TLS RSA 1 (Hellenic Academic and Research Institutions CA)

    issued by HARICA TLS RSA Root CA 2021 (Hellenic Academic and Research Institutions CA)

  3. 03

    HARICA TLS RSA Root CA 2021 (Hellenic Academic and Research Institutions CA)

    issued by Hellenic Academic and Research Institutions RootCA 2015 (Hellenic Academic and Research Institutions Cert. Authority)

  4. 04

    Hellenic Academic and Research Institutions RootCA 2015 (Hellenic Academic and Research Institutions Cert. Authority)

    root

Fingerprint

SHA-256
C3:2F:A2:8B:17:5F:E3:A1:2F:D6:AD:A7:86:72:BC:7A:58:4D:CC:E7:F6:A1:18:62:A8:88:E4:5F:1E:8F:98:FE
Serial number
583DA89796CC26D1E6389D1CA557DDAB