Free Core Web Vitals Lighthouse Test
Run a focused Google Lighthouse Performance audit to measure Largest Contentful Paint, Cumulative Layout Shift, Interaction to Next Paint, and other Core Web Vitals.
Free Core Web Vitals Lighthouse Test
LCP, CLS, and INP are Google's three primary page experience ranking signals. Our free Lighthouse test measures all three against Google's published thresholds and tells you exactly what to fix.
Free Core Web Vitals Threshold Guide
Measures how long it takes for the largest visible content element (image, video, or text block) to fully render.
Measures visual stability — how much page elements unexpectedly move during load. Caused by images without dimensions, ad slots, and dynamic injections.
Measures the responsiveness of your page to user interactions — how quickly the page visually responds after clicks, taps, and keyboard input.