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
Subject Alternative Names (12)
autoconfig.sun.o2switch.net, autodiscover.sun.o2switch.net, cpanel.sun.o2switch.net, cpcalendars.sun.o2switch.net, cpcontacts.sun.o2switch.net, ipv6.sun.o2switch.net, mail.sun.o2switch.net, sun.o2switch.net, webdisk.sun.o2switch.net, webmail.sun.o2switch.net, whm.sun.o2switch.net, www.sun.o2switch.net

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.