Active vs Passive Monitoring: What's the Difference?
Active vs passive monitoring compared: how synthetic checks and real-traffic observation differ, what each one catches and misses, and why you need both.
Synthetic Monitoring vs Real User Monitoring (RUM): Key Differences
Synthetic monitoring vs RUM: which catches downtime first, which measures real user experience, and when to use one, the other, or both. Complete comparison guide.
Apdex Score Explained: Measuring App Performance Satisfaction
What Apdex is, how the score is calculated from satisfied, tolerating and frustrated requests, how to set the T threshold, and where Apdex helps or misleads.
Real User Monitoring (RUM) Explained: How It Works & When to Use It
RUM explained from first principles: what it measures, how it captures Core Web Vitals, beacons, sampling, privacy, when to use it and when synthetic wins.
INP Monitoring: Interaction to Next Paint Guide
Monitor Interaction to Next Paint (INP) in production. Catch click and input lag before Core Web Vitals slip and SEO suffers.