SSL/TLS Certificate Lookup

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

freetheory.com

SSL/TLS Certificate

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SSL/TLS Certificate for freetheory.com

Valid
Issued by (CA)
Let's Encrypt
Subject
freetheory.com
Valid from
Jun 21, 2026
Valid until
Sep 19, 2026 (60 days remaining)
Public key
EC 256-bit
Serial
05D90B2A66CC500412687CB7D5C75C5942CB
SHA-256 fingerprint
38:B9:CE:5E:21:A3:2B:0A:66:E5:9C:4B:DB:98:AB:1B:9E:C0:1E:79:4C:96:A9:52:84:C8:BE:26:D0:A3:3C:B2
Chain
YE1 → Root YE → ISRG Root X2
Subject Alternative Names (2)
*.freetheory.com, freetheory.com

Certificate Authority Authorization (CAA)

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