Perform - Core Web Vitals Analyzer

Measures Core Web Vitals (LCP, FCP, CLS, INP, TTFB) for any webpage you visit. See performance scores instantly in the toolbar.

We created this extension out of necessity to ensure we always have a simple plugin to keep up with the latest Chrome telemetry changes. This plugin is a response to seeing our preferred page-load timing plugins become outdated and stop working with the latest Chrome updates. View important metrics at a glance: analyze resource load times, identify slow scripts, and audit the impact of third-party resources. Features are designed primarily for SEO professionals, marketers, and developers. - Real-time LCP badge on every tab (measurable ones). - Core Web Vitals dashboard - Resource Breakdown by Type (JS, CSS, images, fonts) - Slowest Resource Identification