A simple checklist
- Resize to the largest size your layout actually displays.
- Convert to WebP (or AVIF).
- Name files clearly, e.g.
handmade-oak-cutting-board.webp. - Add alt text describing each image when you upload it.
Platform notes
- WordPress: accepts WebP uploads in current versions.
- Shopify: accepts WebP; product images display best at about 2048 × 2048 for squares.
- Squarespace and Wix: upload reasonably sized images; the platforms resize for different screens.