How to Optimize Images for Core Web Vitals

March 10, 2026

What are Core Web Vitals? Core Web Vitals are a set of metrics that measure user experience on your website. They include Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS). Image Impact on LCP: Images are often the largest element on a page and directly affect LCP. Optimizing images can significantly improve your LCP score. Optimization Techniques: Use modern formats like WebP. Implement lazy loading for below-the-fold images. Specify image dimensions to prevent CLS. Use responsive images with srcset. Our image compressor tool helps you implement these optimizations easily.
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