Web Vitals Dashboard · Iñaki Fuentes

About Web Vitals

Core Web Vitals are Google's metrics for measuring real-world user experience:

LCP (Largest Contentful Paint) — Loading performance. Measures when the main content becomes visible. Good: ≤2.5s
INP (Interaction to Next Paint) — Interactivity. Measures responsiveness to user interactions. Good: ≤200ms
CLS (Cumulative Layout Shift) — Visual stability. Measures unexpected layout shifts. Good: ≤0.1
FCP (First Contentful Paint) — Time until first content renders. Good: ≤1.8s
TTFB (Time to First Byte) — Server response time. Good: ≤800ms
FID (First Input Delay) — Legacy interactivity metric, replaced by INP. Good: ≤100ms

Privacy Notice

This dashboard collects anonymous, aggregated performance metrics only. No personal information, IP addresses, or user tracking is involved. Metrics are measured client-side using the web-vitals library and stored locally in your browser.

All data is privacy-first and GDPR-compliant. Your browsing remains completely anonymous.