---
title: Core Web Vitals and their role in Google Search results
description: "## What are Core Web Vitals? Core Web Vitals are a set of key metrics that reflect **real-world user experience** on your web pages, focusing on: 1. **Loading performance** 2. **Interactivity (responsiveness)** 3. **Visual stability** Google recommends optimizing these metrics…"
url: "https://fsidm.in/knowledge/seo/core-web-vitals/"
updated: "2025-09-27"
category: SEO
---

# Core Web Vitals and their role in Google Search results

## What are Core Web Vitals?

Core Web Vitals are a set of key metrics that reflect **real-world user experience** on your web pages, focusing on:

1. **Loading performance**
2. **Interactivity (responsiveness)**
3. **Visual stability**

Google recommends optimizing these metrics to improve user experience and search performance.

## The 3 Core Metrics Explained:

| **Metric** | **What it Measures** | **Good Threshold** |
| --- | --- | --- |
| **Largest Contentful Paint (LCP)** | How fast the main content loads | Within **2.5 seconds** from page load start |
| **Interaction to Next Paint (INP)** | Responsiveness to user interactions | Less than **200 milliseconds** |
| **Cumulative Layout Shift (CLS)** | Visual stability (avoiding unexpected layout shifts) | Score less than **0.1** |

## Why Optimize Core Web Vitals?

- They are part of **Google’s ranking factors** under the broader “page experience” umbrella.
- Good scores help your site rank better and keep users happy.
- Poor scores can lead to user frustration, higher bounce rates, and lost traffic.

## How to Measure and Improve Core Web Vitals:

- Use the **Core Web Vitals report in Google Search Console** to see how your pages perform.
- Use tools like **Lighthouse, PageSpeed Insights, Web Vitals Chrome extension**, and others to measure LCP, INP, and CLS.
- Follow Google’s Core Web Vitals guide for tips on debugging and improving scores.

### **Quick Tips to Improve:**

- Optimize images and videos for faster loading (LCP).
- Minimize JavaScript execution and improve server response times (INP).
- Reserve space for images, ads, and embeds to prevent layout shifts (CLS).