ARC2 Proxy
Compression & media Per-domain rule boolean

enable_webp_transformation

Transparently re-encode images to WebP for supporting clients.

Config key
enable_webp_transformation
Scope
Per-domain rule
Type
boolean
Default
true

When enabled, images are re-encoded to WebP on the fly for clients that accept it — typically a large size reduction over JPEG/PNG at equivalent quality. The transform only kicks in once a cached image is older than webp_transformation_min_age to avoid spending CPU on content that may change immediately.

enable_webp_transformation = true