Mastering Core Web Vitals: LCP, CLS, INP for Faster and Better User Experiences
Opublikowano: 2026-01-15 22:00:33
Google's Page Experience update, which includes the new Core Web Vitals metrics, is rolling out in June 2021. Learn how to optimize Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), and First Input Delay (FID) to improve user experience and rank higher. Here are 10 actionable tips for a faster and better website.
Largest Contentful Paint (LCP): Measuring the time it takes for a page's main content to appear
1. Identify the largest content: Use Google's Lighthouse or other tools to find the largest element on the page. This could be an image, text, or video.
2. Compress and lazy-load non-critical resources: Use WebP or JPEG for images and defer JavaScript and CSS.
3. Minimize HTTP requests: Combine CSS and JavaScript files or use a service worker.
4. Prioritize critical requests: Load important resources first, like the logo and navigation menu.
5. Optimize server response time: Use a CDN or a fast host.
6. Use browser caching: Enable browser caching and compress images and scripts.
7. Minify and defer fonts: Remove unnecessary styles and use a font delivery network.
8. Minimize render-blocking resources: Use async and defer attributes for scripts and styles.
9. Optimize critical rendering path: Reduce the number of third-party scripts and styles.
10. Use a performance budget: Limit the page weight to 500 KB.
Cumulative Layout Shift (CLS): Reducing unexpected layout shifts
1. Size images: Use the correct dimensions and avoid inline CSS.
2. Use layout shifting techniques: Reserve space for ads and animations.
3. Minimize dynamic content: Load content asynchronously.
4. Avoid pop-ups and interstitials: Use a modal or slide-in.
5. Reduce font size: Use a system font or a smaller size.
6. Use viewport meta tags: Set the viewport to the device width.
7. Limit layout shifts: Avoid layout-changing styles.
8. Reduce layout complexity: Use grid layouts and flexible containers.
9. Use a layout shift API: Prevent shifts with JavaScript.
10. Test for CLS: Use Chrome DevTools or Google's CLS calculator.
First Input Delay (FID): Reducing input latency
1. Reduce JavaScript: Minify and defer scripts.
2. Use requestIdleCallback: Avoid long-running tasks.
3. Use touch events: Prevent multiple event listeners.
4. Use touch-optimized input types: Reduce input lag.
5. Reduce server response time: Use a fast host and optimize database queries.
6. Optimize third-party scripts: Use asynchronous loading.
7. Reduce redirects: Minimize HTTP requests.
8. Enable touch-friendly input: Use touch events and hover effects.
9. Use touch-friendly forms: Optimize form design.
10. Measure FID: Use Chrome DevTools or WebPageTest.
Conclusion
Core Web Vitals are essential for better user experiences and search rankings. By implementing these tips, you'll improve your website's performance and Core Web Vitals score. Google will reward you with higher search engine positions. Optimize LCP, CLS, and FID for faster and smoother page loads, lower bounce rates, and higher engagement. Happy optimizing!
Largest Contentful Paint (LCP): Measuring the time it takes for a page's main content to appear
1. Identify the largest content: Use Google's Lighthouse or other tools to find the largest element on the page. This could be an image, text, or video.
2. Compress and lazy-load non-critical resources: Use WebP or JPEG for images and defer JavaScript and CSS.
3. Minimize HTTP requests: Combine CSS and JavaScript files or use a service worker.
4. Prioritize critical requests: Load important resources first, like the logo and navigation menu.
5. Optimize server response time: Use a CDN or a fast host.
6. Use browser caching: Enable browser caching and compress images and scripts.
7. Minify and defer fonts: Remove unnecessary styles and use a font delivery network.
8. Minimize render-blocking resources: Use async and defer attributes for scripts and styles.
9. Optimize critical rendering path: Reduce the number of third-party scripts and styles.
10. Use a performance budget: Limit the page weight to 500 KB.
Cumulative Layout Shift (CLS): Reducing unexpected layout shifts
1. Size images: Use the correct dimensions and avoid inline CSS.
2. Use layout shifting techniques: Reserve space for ads and animations.
3. Minimize dynamic content: Load content asynchronously.
4. Avoid pop-ups and interstitials: Use a modal or slide-in.
5. Reduce font size: Use a system font or a smaller size.
6. Use viewport meta tags: Set the viewport to the device width.
7. Limit layout shifts: Avoid layout-changing styles.
8. Reduce layout complexity: Use grid layouts and flexible containers.
9. Use a layout shift API: Prevent shifts with JavaScript.
10. Test for CLS: Use Chrome DevTools or Google's CLS calculator.
First Input Delay (FID): Reducing input latency
1. Reduce JavaScript: Minify and defer scripts.
2. Use requestIdleCallback: Avoid long-running tasks.
3. Use touch events: Prevent multiple event listeners.
4. Use touch-optimized input types: Reduce input lag.
5. Reduce server response time: Use a fast host and optimize database queries.
6. Optimize third-party scripts: Use asynchronous loading.
7. Reduce redirects: Minimize HTTP requests.
8. Enable touch-friendly input: Use touch events and hover effects.
9. Use touch-friendly forms: Optimize form design.
10. Measure FID: Use Chrome DevTools or WebPageTest.
Conclusion
Core Web Vitals are essential for better user experiences and search rankings. By implementing these tips, you'll improve your website's performance and Core Web Vitals score. Google will reward you with higher search engine positions. Optimize LCP, CLS, and FID for faster and smoother page loads, lower bounce rates, and higher engagement. Happy optimizing!
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