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 osk.it
Untrusted chain- Issued by (CA)
- Let's Encrypt
- Subject
- osk.it
- Valid from
- Jun 3, 2026
- Valid until
- Sep 1, 2026 (41 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0673E7C6E61A5E916CCA1F2D9DC50DEC2E14
- SHA-256 fingerprint
- 81:C3:35:D9:E9:19:94:6E:38:68:77:BC:F8:11:FA:70:BB:B1:AF:78:56:65:D3:4D:39:E6:7B:6C:C5:32:0A:6A
- Chain
- YR1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.