# Which MIME types does smoxy support for optimization & caching?

smoxy supports caching and optimization for a selected set of MIME types. The exact behavior depends on which features are enabled in your smoxy configuration.

## Caching Support

* text/html

When acceleration is enabled in smoxy, HTML content (text/html) is supported by caching. This allows faster delivery of dynamic or frequently requested pages.

## Image Optimization Support

* image/jpeg
* image/jpg
* image/png
* image/webp

When [Image Optimization](https://docs.smoxy.eu/en/sites/image-optimization) is active, these file types are processed and optimized by smoxy. The optimized versions are then cached automatically, ensuring fast delivery and reduced bandwidth usage.

## Automatic Conversion to Modern Formats

When enabling WebP or AVIF in the Image Optimization settings:

* smoxy automatically converts supported images to WebP or AVIF formats.
* The optimized images are served from the smoxy cache.
* smoxy respects the Accept headers of the client request, ensuring compatibility with all browsers and devices.