Checklist
SSL Certificate Expiry Checklist
SSL expiry problems are preventable, but they still take sites offline, break checkout trust, and make agencies look unprepared.
Track every hostname
Include root domains, www variants, app subdomains, API subdomains, checkout pages, and client campaign microsites.
Alert before the panic window
Create 30-day, 14-day, 7-day, and 48-hour warnings so renewals happen before browsers show certificate errors.
Pair SSL with domain checks
A valid certificate does not help if the domain expires. Monitor both signals in the same workflow.