SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
uni-rostock.de
SSL/TLS Certificate
SSL/TLS Certificate for uni-rostock.de
Valid- Issued by (CA)
- Hellenic Academic and Research Institutions CA
- Subject
- uni-rostock.de
- Valid from
- Dec 15, 2025
- Valid until
- Dec 15, 2026 (98 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 28FBD9259748D0201E0063D883D8B012
- SHA-256 fingerprint
- 9A:AD:8D:B7:54:C8:8B:41:DE:81:FF:5B:DB:54:6B:2C:7E:A1:D5:83:D8:45:3A:51:2D:D9:75:E8:A9:8C:FA:BB
- Chain
- GEANT TLS RSA 1 → HARICA TLS RSA Root CA 2021
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.
This certificate has been served since Jul 26, 2026.
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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