SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
uni-duisburg-essen.de
SSL/TLS Certificate
SSL/TLS Certificate for uni-duisburg-essen.de
Valid- Issued by (CA)
- Hellenic Academic and Research Institutions CA
- Subject
- www.uni-due.de
- Valid from
- Aug 7, 2026
- Valid until
- Feb 22, 2027 (111 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 7E6B6D9997F43A506A6FCDC73657C8EB
- SHA-256 fingerprint
- C0:11:C0:B6:4B:76:14:9D:CA:0D:57:A5:EC:09:1C:68:4A:36:CF:80:92:5A:2F:6F:AB:1A:43:3D:C0:85:15:82
- Chain
- GEANT TLS RSA 1 → HARICA TLS RSA Root CA 2021 → Hellenic Academic and Research Institutions RootCA 2015
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 24, 2026.
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TLS certificate
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