SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
nbn-resolving.de
SSL/TLS Certificate
SSL/TLS Certificate for nbn-resolving.de
Valid- Issued by (CA)
- Hellenic Academic and Research Institutions CA
- Subject
- nbn-resolving.de
- Valid from
- Nov 12, 2025
- Valid until
- Nov 12, 2026 (114 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 7A862EF0577350FBF59941A8FF11CDD4
- SHA-256 fingerprint
- 6B:7D:9E:83:0E:D7:24:58:1F:74:63:E6:F4:C5:50:7F:E9:6D:B9:C0:0A:0B:49:12:7C:BA:14:A2:50:A0:84:A2
- Chain
- GEANT TLS RSA 1 → HARICA TLS RSA Root CA 2021 → Hellenic Academic and Research Institutions RootCA 2015
Certificate Authority Authorization (CAA)
CAA restricts issuance to harica.gr, pki.dfn.de, sectigo.com; we couldn't map the serving CA (Hellenic Academic and Research Institutions CA) to one of these identifiers.