An expired domain or SSL certificate is one of the most avoidable, and most embarrassing, causes of an outage — entirely preventable with proper alerting.
Domain Expiration Alerts
Beyond your registrar's own renewal reminders, a separate monitoring service tracking domain expiration adds a redundant safety net in case an email gets missed.
SSL Certificate Expiration Alerts
Even with auto-renewing certificates, monitoring for unexpected renewal failures catches the rare case where automation quietly breaks.
Redundancy Is the Point
Relying on a single reminder system means one missed email causes a real outage — layering multiple independent alert sources removes that single point of failure.
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