You just have unique names for images - isn't that already used for email pixels? ie, se09d.png Also used sometimes for standard cache invalidation efforts so

You just have unique names for images - isn't that already used for email pixels? ie, se09d.png Also used sometimes for standard cache invalidation efforts so common for both nontracking purposes too. Worst case sites will just install a middleware layer to proxy all their requests and traffic back to ad tech machine I'd imagine or install some middleware on their stack.