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 ltlab.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- ltlab.ch
- Valid from
- May 27, 2026
- Valid until
- Aug 25, 2026 (35 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0550E9EECD26BEC61A981D5F2C0335ACB99C
- SHA-256 fingerprint
- 92:82:F4:CD:2D:63:69:02:30:BC:CE:37:2E:C7:20:0B:85:E7:D1:79:DF:82:11:2C:4F:26:70:75:5B:15:4F:7F
- Chain
- R13 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.