How Does Image Optimization Work In A CMS?
IntermediateQuick Answer
TL;DR
CMS image optimization automatically reduces image file sizes and serves the right format and dimensions for each device and context. This typically includes automatic compression, format conversion (WebP, AVIF), responsive image generation at multiple sizes, lazy loading, and CDN delivery. Modern CMS platforms handle optimization on-the-fly via image transformation URLs, so editors upload one high-quality original and the system generates optimized variants automatically.
Key Takeaways
- Automatic compression and format conversion (WebP, AVIF)
- Responsive images and srcset generation
- On-the-fly transformations via URL parameters
- CDN delivery and caching for fast global performance