I am not in any way pro-Google and I feel what they are doing with AMP is a perilous path, but your article was not convincing. It’s trivially easy to rotate a

I am not in any way pro-Google and I feel what they are doing with AMP is a perilous path, but your article was not convincing. It’s trivially easy to rotate a JS name and serve it from the same cached edge file (eg with cloudflare workers) and not incurring any major additional cost. It’s not hard to imagine advertisers doing something similar with their own CDNs. This could even be done at the DNS level with random sub domains. Unless we are ok blocking (star).facebook.com/(star), every other part of the URL is trivially easy to randomize.