First things first. Let’s start with what Trusted Server is, as it described in the IAB proposal. At its core, Trusted Server is a new way for websites to show you ads. Instead of loading ads and tracking scripts directly in your browser (like most websites do today), it moves all of that behind the scenes, to powerful servers that the website owner controls.
Think of it like this: normally, when you visit a website, your browser talks to several ad companies, loads their scripts, and decides which ads to show. With Trusted Server, your browser doesn’t do any of that. Instead, the website’s own server handles the ad business — talks to ad companies, picks the ad, and sends the final result back to your browser to display, all in one package.