SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for cnr.it
Valid- Issued by (CA)
- Hellenic Academic and Research Institutions CA
- Subject
- www.cnr.it
- Valid from
- Nov 21, 2025
- Valid until
- Nov 21, 2026 (123 days remaining)
- Public key
- RSA 3072-bit
- Serial
- 12EAAFF503EBEE0BFB772569EC83527F
- SHA-256 fingerprint
- 03:1F:F1:C3:EC:A1:99:A4:A3:F2:08:71:1B:6C:E5:53:56:57:B9:75:62:47:74:A8:8C:C8:31:4F:85:6C:1B:D4
- 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 actalis.it, harica.gr, letsencrypt.org, sectigo.com; we couldn't map the serving CA (Hellenic Academic and Research Institutions CA) to one of these identifiers.