Core Web Vitals are three Google metrics that measure real-world user experience: Largest Contentful Paint (LCP) for loading speed, Interaction to Next Paint (INP) for responsiveness, and Cumulative Layout Shift (CLS) for visual stability. They matter because they influence search rankings, reduce bounce rates, and lift conversions.

Your website might be losing visitors and revenue for a reason that has nothing to do with your content. The culprit? Speed and stability. A page that loads slowly, freezes when someone clicks, or shifts around as it loads will frustrate users—and Google notices.

That's where Core Web Vitals come in. These three metrics give you a concrete way to measure how real people experience your site, and they've become a confirmed Google ranking signal. Whether you manage your own site or work with web designing experts to build it, understanding these metrics is essential to staying competitive in search.

In this guide, we'll break down what each Core Web Vital measures, what counts as a "good" score, why these numbers affect your bottom line, and how to start improving them today.