Cache timing allocation for transformed images
In i3, our image management solution, setting the max-age
and s-maxage
values in the Cache-Control
header is done through two custom headers: TCDN-i3-max-age
and TCDN-i3-s-maxage
, both with the same semantics.
For example, if we wanted to serve images on our domain mi-dominio.es
in WebP format with a max-age
of one minute (60 s) and an s-maxage
of one month (2592000 s), we would simply need to deploy a VCL configuration similar to the following from the dashboard:
i3 - Cache-Control
sub vcl_recv {
if (req.http.host == "www.mi-dominio.es") {
set req.http.TCDN-i3-transform = "auto_webp";
set req.http.TCDN-i3-max-age = "60";
set req.http.TCDN-i3-s-maxage = "2592000";
}
}
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