SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ur-library.de
SSL/TLS Certificate
SSL/TLS Certificate for ur-library.de
Valid- Issued by (CA)
- Hellenic Academic and Research Institutions CA
- Subject
- www.ur-library.de
- Valid from
- Oct 31, 2025
- Valid until
- Oct 31, 2026 (88 days remaining)
- Public key
- EC 256-bit
- Serial
- 603889E0589858A87BEAD983ED4BC550
- SHA-256 fingerprint
- 4F:C1:1C:68:AB:9E:F9:DB:F3:98:3D:5C:6E:A4:9E:E6:91:DA:73:36:E7:2B:8C:F0:E3:14:6F:17:5D:02:09:B9
- 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; we couldn't map the serving CA (Hellenic Academic and Research Institutions CA) to one of these identifiers.
This certificate has been served since Aug 3, 2026.
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TLS certificate
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