SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

simo.academy

SSL/TLS Certificate

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SSL/TLS Certificate for simo.academy

Valid
Issued by (CA)
Let's Encrypt
Subject
simo.academy
Valid from
Jun 6, 2026
Valid until
Sep 4, 2026 (45 days remaining)
Public key
EC 384-bit
Serial
052408B1BA059203C7FFA8EC793221B116FB
SHA-256 fingerprint
50:B2:4C:A9:B3:84:03:8D:9A:6E:E0:98:C3:58:1B:B5:17:06:6E:6D:E2:80:C3:B4:40:9B:AE:48:A0:DF:7F:64
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
simo.academy, www.simo.academy

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org, sectigo.com).