perfume.js (npm): Web performance library for measuring all User-centric performance metrics, including the latest Web Vitals.
Keywords: performance|performance-metrics|metrics|navigation-timing|time-to-first-byte|ttfb|navigator-interface|resource-timing|service-worker-status|storageManager-interface|first-paint|fp|first-contentful-paint|fcp|first-input-delay|fid|largest-contentful-paint|lcp|cumulative-layout-shift|cls|total-blocking-time|tbt|element-timing|web-vitals|monitorning|network-information|performance-monitoring|web-performance