This article brought back to memory the first paywall like functionality that was implemented in Varnish, since it was done using the cURL VMOD (and the reason

This article brought back to memory the first paywall like functionality that was implemented in Varnish, since it was done using the cURL VMOD (and the reason why it was developed by Varnish Software in the first place). "Development of this VMOD has been sponsored by the Norwegian company Aspiro Music AS for usage on their WiMP music streaming service." from <https://github.com/varnish/libvmod-curl#readme&#62 https://github.com/varnish/libvmod-curl#readme>