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 rkd.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- rkd.ch
- Valid from
- Jun 13, 2026
- Valid until
- Sep 11, 2026 (51 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0663D41616D1E8CC0C445DE19B977A88D6D2
- SHA-256 fingerprint
- 00:FA:E3:FB:BE:1D:8A:61:F0:39:5B:06:09:B9:00:01:A2:9E:08:CF:F7:FA:1A:96:FA:FE:2E:9D:2F:18:D2:72
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.