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 sharedskies.org

Hostname mismatch
Issued by (CA)
Sectigo Limited
Subject
www.astro.louisville.edu
Valid from
Aug 4, 2025
Valid until
Sep 3, 2026 (44 days remaining)
Public key
RSA 2048-bit
Serial
4D3F6A654621017EA658E161E0B1819A
SHA-256 fingerprint
07:C2:39:7F:C5:BA:4F:42:40:18:63:7E:45:06:4B:AE:06:C6:21:77:DA:1D:F1:73:FA:25:0B:D5:C8:37:BE:45
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46
Subject Alternative Names (1)
www.astro.louisville.edu

Certificate Authority Authorization (CAA)

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