Perform - Core Web Vitals Analyzer is a free Chrome add-on designed for SEO professionals, marketers, developers, and website owners. It provides real-time performance metrics, including Largest Contentful Paint (LCP), First Contentful Paint (FCP), Cumulative Layout Shift (CLS), Interaction to Next Paint (INP), and Time to First Byte (TTFB). This tool allows users to quickly view Core Web Vitals for any webpage directly from the browser toolbar, making it a convenient resource for optimizing site performance.

The add-on features a comprehensive dashboard that breaks down resource loading by type, highlighting JavaScript, CSS, images, and fonts. It also identifies the slowest resources and enables users to analyze the impact of third-party domains on page performance. With support for Single Page Application (SPA) navigation, Perform provides a thorough analysis of webpage performance, ensuring users can effectively audit and enhance their online presence.