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 planetbruce.com

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
uhs.ulysses.ny.us
Valid from
Jun 4, 2026
Valid until
Sep 2, 2026 (43 days remaining)
Public key
RSA 2048-bit
Serial
050646C92B90A36338E77CB9FB37BE592D18
SHA-256 fingerprint
52:39:40:48:BD:41:5F:EA:38:BA:5C:52:7E:27:2C:03:1F:53:A0:B3:C5:08:0E:65:05:88:E7:07:7D:31:34:01
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (1)
uhs.ulysses.ny.us

Certificate Authority Authorization (CAA)

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