This is a single-origin server. No CDN. just a well-setup, secured & capable server currently serving up around 400gb per month.
In order to keep it that way, large BMS pack downloads are secured with Google Recaptcha Enterprisev3-API
As part of a practicle security design, that API is Restricted-Scope and was tied to the WAN ip address of the server itself – recent ISP changes broke this link, which in-turn broke the API.
This has now been fixed 🙂