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 izam.fr
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- autoconfig.sun.o2switch.net
- Valid from
- Jul 9, 2026
- Valid until
- Oct 7, 2026 (77 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 059A0B3B65D6C9CB0FB9648EF4996BE6AF1F
- SHA-256 fingerprint
- 9B:8D:06:FD:81:41:E4:04:3E:35:A4:28:6E:A7:E6:43:49:5E:90:06:B0:63:3A:0D:93:F0:93:E8:B2:51:13:A7
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.