WebP & PageSpeed: technical SEO wins (LCP, Core Web Vitals)

In the 2026 Google Search algorithm, speed is a direct ranking factor. WebP format is the ultimate weapon to dominate results. **LCP (Largest Contentful Paint)**: This is the time needed to display the largest visual element of your page (often an image). By converting your PNG/JPG to WebP, you reduce the weight of this element by 30% to 80%. The result? An LCP that drops below the critical 2.5-second mark. **Alpha Compression**: Unlike JPG, WebP supports transparency (alpha channel) with fearsome efficiency. A 500 KB transparent PNG logo can often be reduced to 40 KB in WebP without any pixelation. **Implementation**: Use PulsConv to generate your WebP versions. On your server, implement content negotiation to serve WebP to compatible browsers while keeping JPG as a fallback for very old systems. This is the strategy adopted by the world's largest e-commerce sites. Go further: “WebP & PageSpeed” guide (/en/guides/impact-webp-pagespeed), JPG vs WebP (/en/compare/jpg-vs-webp), PNG to WebP (/en/convert/png-to-webp).