Monitoring Glossary
Clear definitions for site reliability, performance, Web Vitals, and monitoring terminology.
Apdex (Application Performance Index)
Apdex is an open standard for measuring user satisfaction with the response time of web applications and services.
Interaction to Next Paint (INP)
Interaction to Next Paint (INP) is a Core Web Vital metric that measures overall user interface responsiveness by tracking the latency of user interactions throughout a page visit.
Largest Contentful Paint (LCP)
Largest Contentful Paint (LCP) is a Core Web Vital metric that measures perceived loading speed by marking the point in the page load timeline when the main content has likely loaded.