Free tool · no signup
Page Weight Checker
We'll fetch your page and measure how heavy it is — total KB, total requests, and the breakdown across JavaScript, CSS, images, fonts and iframes. Bloated pages are the #1 cause of bad mobile experience.
Page weight is one Performance signal. There are seven more.
Nova Insight runs a full Lighthouse audit, measures Core Web Vitals on real mobile + desktop, and shows you exactly which assets to compress, lazy-load or remove — alongside SEO, accessibility, security and AI visibility.