Apdex compresses latency into one 0-1 score: (satisfied + tolerating/2) / total. Learn to set the T threshold, what 0.85 means, and when Apdex misleads.
p99 is the latency your slowest 1% of users hit. Learn why averages hide outages, how to set SLOs on p95 and p99, and how to alert without noise.
Your site might be 'up' but still losing customers. Learn why response time monitoring matters and how slow performance kills conversions.
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