SSL/TLS Certificate Lookup

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

posticy.com

SSL/TLS Certificate

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SSL/TLS Certificate for posticy.com

Valid
Issued by (CA)
Let's Encrypt
Subject
posticy.com
Valid from
Jun 20, 2026
Valid until
Sep 18, 2026 (58 days remaining)
Public key
EC 256-bit
Serial
05D2A420A7F069E311E88ED25286AFC94036
SHA-256 fingerprint
54:E1:F1:2B:CA:14:07:74:11:C4:70:9C:0D:47:6D:68:11:A3:93:1F:83:27:78:7F:FD:9A:06:E3:C1:AA:6B:BF
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
posticy.com, www.posticy.com

Certificate Authority Authorization (CAA)

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