Optimizing Images for Web Performance

Optimizing image sizes is critical to maintaining low Largest Contentful Paint (LCP) scores and passing Core Web Vitals audits. Large image files increase network payloads, slowing down critical render times. To optimize web performance:

• Select Modern Formats: Convert PNGs and JPEGs to next-generation formats like WebP or AVIF. This often yields file size savings of 30%–50% without noticeable quality loss.
• Resize Layout Widths: Never serve raw photographs that exceed double their rendered layout display width. Scale images to match responsive site containers using percentage or pixel constraints.
• Fine-Tune Compression: Aim for a quality level between 75% and 85% for lossy web images to achieve the optimal balance of visual clarity and file size.