Outdated Image Formats
Your images are in legacy JPG/PNG formats with no WebP or AVIF anywhere. That's wasted bandwidth on every visit.
Quick Answer
To modernize your images, convert JPG and PNG files to WebP or AVIF, which are 25–50% smaller at the same visual quality. Most CDNs and image plugins can do this automatically with content negotiation, serving modern formats to browsers that support them and falling back for old ones.
The Problem
Legacy image formats (JPG, PNG, GIF) are significantly larger than modern WebP and AVIF at equivalent quality. On an image-heavy page, sticking with old formats means every visitor downloads far more data than necessary.
Why It Matters
Images are usually the heaviest part of a page. Modern formats can cut total image weight by a third or more, directly improving load time and Largest Contentful Paint — which Google uses as a ranking factor.
How to Fix It
Identify your largest images (DevTools → Network tab → filter by Img, sort by size).
Convert them to WebP or AVIF using an image tool, a build step, or your CMS's media settings.
Use a CDN with automatic format negotiation (Cloudflare Polish, Cloudinary, imgix) to serve modern formats without manual work.
Use the <picture> element with WebP/AVIF sources and a JPG/PNG fallback for maximum browser support.
Combine modern formats with responsive srcset so phones don't download desktop-sized images.
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