Conversion to WebP

i3, our image management solution, allows you to dynamically and transparently transform your images into the WebP format and serve them to browsers that explicitly declare compatibility with this format through the Accept: image/WebP header.

To achieve this, we use our TCDN-i3-transform header, specifying the desired operation, which in this case is auto_webp.

For example, if you wanted to serve images on your domain mi-dominio.es in WebP format, you can simply deploy a VCL configuration similar to the following from the dashboard:

# i3 - auto_webp
sub vcl_recv {
    if (req.http.host == "www.mi-dominio.es") {
        set req.http.TCDN-i3-transform = "auto_webp";
    }
}

We also support an optional quality adjustment for the transformation to WebP, which is set to 80% by default.

The exact syntax for this operation is: auto_webp:<porcentaje>%.

The following example illustrates this more clearly:

# i3 - auto_webp - con ajuste de calidad
sub vcl_recv {
    if (req.http.host == "www.mi-dominio.es") {
        set req.http.TCDN-i3-transform = "auto_webp:90%";
    }
}