Website Performance Monitoring: What to Alert On
Website performance monitoring is two jobs sharing a name. Delivery timings belong on a pager, Core Web Vitals belong on a dashboard. Here is the split.
#performance
6 posts tagged "Performance".
Real User Monitoring: What RUM Sees and What It Misses
Real user monitoring times pages inside visitors' browsers. Here is what those APIs report, how much of it never arrives, and why it cannot detect an outage.
Apdex Score: The Formula, T, and What It Hides
Apdex folds response times into one number from 0 to 1 by grading each sample against a threshold you choose, and that threshold is the whole decision.
Browser Monitoring: Three Products, One Phrase
Browser monitoring means real user data, a scripted headless browser, or staff surveillance. Here is how to tell which one a vendor is selling you.
Synthetic Monitoring: The Three Rungs Explained
Synthetic monitoring generates traffic on a schedule so failures surface at 3 am with no users online. Here are its three tiers and what each one costs.
Response Time Monitoring: Phases, Percentiles, Regions
Response time monitoring works when you read the timing waterfall, alert on p95 instead of the mean, and compare probe regions rather than blending them.