# Conversion to WebP

[i3](/config/i3.md), 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](/config/vcl.md) [configuration](/config/easy-setup.md) similar to the following from the [dashboard](/getting-started/dashboard.md):

```c
# 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>%`.&#x20;

The following example illustrates this more clearly:

```c
# 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%";
    }
}
```


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