How to Check Whether a cPanel Website Uses an Outdated SSL Certificate Chain

A site may present a valid leaf certificate but omit or serve an outdated intermediate chain, causing failures on some clients.

What to check

Inspect the certificate chain from multiple clients, verify the active virtual host and bundle, and check renewal and installation logs.

Recommended next step

Install the provider-recommended full chain and retest on common clients. Informatix Systems can review cPanel hosting and HTTPS configuration.