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 li361-111.members.linode.com

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
companionlink-software.com
Valid from
Jun 18, 2026
Valid until
Sep 16, 2026 (37 days remaining)
Public key
EC 256-bit
Serial
05937A020899EF35C7DEEC92F256194FA866
SHA-256 fingerprint
B4:32:BF:9E:AC:20:61:7A:49:CE:E6:C2:4A:93:63:12:48:D6:53:B5:79:EA:8D:F3:8D:6D:E5:A7:F9:D9:8E:0C
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
companionlink-software.com, www.companionlink-software.com

Certificate Authority Authorization (CAA)

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TLS certificate

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