Core Concepts Wiki Entry

WebP / AVIF

Modern image formats offering smaller file sizes than JPEG and PNG.

WebP offers 25-35% smaller files than JPEG at equivalent quality; AVIF improves further with 50% reductions and broader browser support arriving in 2024. Modern image delivery uses srcset and the picture element with format fallbacks. Wix automatically serves WebP/AVIF where supported, with JPEG/PNG fallbacks for legacy browsers.

Related Entries

Image SEO

The practice of optimising images for search visibility and page performance.

Core Web Vitals

Google's page experience metrics measuring loading, interactivity and stability.

Lazy Loading

Deferring image and resource loading until needed in the viewport.

Want to apply this in practice?

The Complete Wix SEO Course covers this topic and 67 others in step-by-step lessons designed for real Wix sites.

Explore the course