SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
uni-bonn.de
SSL/TLS Certificate
SSL/TLS Certificate for uni-bonn.de
Valid- Issued by (CA)
- Hellenic Academic and Research Institutions CA
- Subject
- uni-bonn.de
- Valid from
- Aug 4, 2026
- Valid until
- Feb 19, 2027 (194 days remaining)
- Public key
- EC 384-bit
- Serial
- 7801BB039DB481BB546BC5F24C93D429
- SHA-256 fingerprint
- 7B:DE:6C:56:D4:A4:42:38:C1:CC:55:14:C9:14:8E:5A:2C:CD:9C:A6:56:A1:AB:3D:AA:36:D9:5A:C7:F4:01:6A
- Chain
- GEANT TLS ECC 1 → HARICA TLS ECC Root CA 2021 → Hellenic Academic and Research Institutions ECC RootCA 2015
Certificate Authority Authorization (CAA)
CAA restricts issuance to harica.gr, letsencrypt.org, pki.dfn.de, sectigo.com; we couldn't map the serving CA (Hellenic Academic and Research Institutions CA) to one of these identifiers.
We've observed 1 previous certificate for this host. This certificate has been served since Jul 27, 2026.
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DNS changes
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TLS certificate
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