SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

fh-dortmund.de

SSL/TLS Certificate

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SSL/TLS Certificate for fh-dortmund.de

Valid

Issued by (CA): Hellenic Academic and Research Institutions CA
Subject: www.fh-dortmund.de
Valid from: Nov 21, 2025
Valid until: Nov 21, 2026 (122 days remaining)
Public key: RSA 4096-bit
Serial: 0FE75EAEAEE6FC3E82CF99427ED165F3
SHA-256 fingerprint: 7D:B0:B0:3A:09:26:D5:4C:07:2B:97:2F:60:0E:F1:FF:07:93:F3:92:3E:EF:2F:BE:3E:1D:CB:E0:2E:3A:E2:A0
Chain: GEANT TLS RSA 1 → HARICA TLS RSA Root CA 2021 → Hellenic Academic and Research Institutions RootCA 2015

Subject Alternative Names (5)

fh-dortmund.de, www.fh-dortmund.de, www1.fh-dortmund.de, www2.fh-dortmund.de, www3.fh-dortmund.de

Certificate Authority Authorization (CAA)

CAA restricts issuance to harica.gr, letsencrypt.org, pki.dfn.de; we couldn't map the serving CA (Hellenic Academic and Research Institutions CA) to one of these identifiers.