Wix Platform Wiki Entry

Wix Image Optimisation

Automatic image compression, lazy loading and modern format delivery.

Wix automatically compresses uploaded images, serves WebP and AVIF where supported, applies lazy loading to below-the-fold images and uses srcset for responsive sizing. These optimisations contribute to strong Core Web Vitals scores out of the box. Site owners can further optimise by uploading correctly-sized originals, providing descriptive filenames and alt text, and using the SEO Tools image audit report.

Related Entries

Core Web Vitals

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

WebP / AVIF

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

Lazy Loading

Deferring image and resource loading until needed in the viewport.

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