SSL/TLS Certificate Lookup

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

kaestra.com

SSL/TLS Certificate

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SSL/TLS Certificate for kaestra.com

Valid
Issued by (CA)
Let's Encrypt
Subject
*.kaestra.com
Valid from
Jul 18, 2026
Valid until
Oct 16, 2026 (87 days remaining)
Public key
RSA 2048-bit
Serial
05081EF967CC79CA6D669362C96A696A842E
SHA-256 fingerprint
6B:D8:27:01:6E:42:00:25:9C:1B:CB:23:CB:FA:FF:05:69:E5:C8:DC:FF:99:87:F4:E8:F9:A9:8E:31:C0:F2:6B
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
*.kaestra.com, kaestra.com

Certificate Authority Authorization (CAA)

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