SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
uni-dortmund.de
SSL/TLS Certificate
SSL/TLS Certificate for uni-dortmund.de
Valid- Issued by (CA)
- Hellenic Academic and Research Institutions CA
- Subject
- www.tu-dortmund.de
- Valid from
- Jul 28, 2026
- Valid until
- Feb 12, 2027 (158 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 01E2CF2823A2268BD1CCC7C6D7FAA651
- SHA-256 fingerprint
- 52:67:DF:E4:48:90:AD:25:82:77:CD:EE:D2:DA:03:E6:07:AD:30:07:13:8D:3B:D8:BE:46:C8:14:0B:90:1D:90
- 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.
This certificate has been served since Aug 11, 2026.
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TLS certificate
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