Core Web Vitals for 2026

Speed is no longer just about loading; it's about responsiveness. Learn how to master the latest Google performance signals to stay ahead in search results.

1. The New Metric: INP (Interaction to Next Paint)

As of 2024, INP has replaced FID as a core metric. It measures the time between a user interaction (like a click) and the next visual update on the screen. A "Good" INP score is under 200 milliseconds.

Optimization Tip: Minimize heavy JavaScript execution on the main thread to keep the browser responsive to user inputs.

2. LCP (Largest Contentful Paint)

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

• Optimize images: Use WebP or Avif formats.
• Prioritize critical CSS: Inline the styles needed for the initial view.
• Use a CDN: Reduce the physical distance between your server and the user.

3. CLS (Cumulative Layout Shift)

CLS measures visual stability. Have you ever tried to click a button only for it to move at the last second? That's a layout shift. Aim for a score of less than 0.1.

• Always include width and height attributes on images and videos.
• Reserve space for ad slots so they don't push content down when they load.