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 downi.de
Expiring soon- Issued by (CA)
- Let's Encrypt
- Subject
- downi.de
- Valid from
- May 3, 2026
- Valid until
- Aug 1, 2026 (10 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06F797A13763F59D2E1B510B545305938457
- SHA-256 fingerprint
- 23:4C:32:F3:12:9B:E2:F4:5E:1D:E3:C1:49:7E:F7:53:66:16:FF:01:2B:1D:8B:3F:13:92:AD:B3:AC:42:50:FB
- Chain
- R13 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.