The Discipline of Five Nines: Designing for 99.999% Availability

99.9% uptime means almost nine hours of downtime per year. For an automotive auction platform, that's millions in lost revenue. We set our target at the gold standard: 99.999%.

Redundancy at Every Layer

Achieving five nines requires removing every single point of failure. We moved to redundant load balancers, multi-AZ database deployments, and self-healing container clusters that automatically replace degraded nodes before they affect traffic.