Image Optimization
Automatic WebP conversion and image compression.
Automatic WebP Conversion
Fast Edge Cache automatically converts your images to WebP format for browsers that support it. WebP images are 25-35% smaller than equivalent JPEGs with no visible quality loss.
Original JPEG
2.4 MB
3.2s load time
Fast WebP
680 KB
0.9s load time
No changes needed: Your original images stay on your server. We convert and cache WebP versions automatically at the edge.
How It Works
- 1
Browser requests an image
Modern browsers send an Accept header indicating WebP support
- 2
Fast detects WebP support
We check if the browser can display WebP images
- 3
WebP version is served
The optimized WebP is delivered; older browsers get the original
Supported Formats
JPEG
→ WebP
PNG
→ WebP
GIF
Preserved
SVG
Preserved
Animated GIFs and SVGs are served as-is since they don't benefit from WebP conversion.
Impact on Core Web Vitals
- LCP improves 40-60% — hero images load faster
- Bandwidth reduced 25-35% — lower hosting costs
- PageSpeed score improves — "Serve images in next-gen formats" resolved