Understanding Core Web Vitals: A Complete Guide

Core Web Vitals are a set of specific factors that Google considers important in a webpage's overall user experience. They consist of three specific page speed and user interaction measurements:

Largest Contentful Paint (LCP)

LCP measures loading performance. To provide a good user experience, LCP should occur within 2.5 seconds of when the page first starts loading.

First Input Delay (FID) / Interaction to Next Paint (INP)

INP measures interactivity. To provide a good user experience, pages should have an INP of 200 milliseconds or less.

Cumulative Layout Shift (CLS)

CLS measures visual stability. To provide a good user experience, pages should maintain a CLS of 0.1 or less.

Why They Matter

Core Web Vitals are part of Google's ranking factors and directly impact your search visibility. More importantly, they measure the real experience your users have on your site.

With Goodspeed, you can monitor all these metrics in real-time across all your sites, set up alerts, and track improvements over time.