Right. Here's the problem and confusion with Google AMP: it's actually two seperate products.
1. There's the HTML/CSS/JS library/subset that's a good framework for building pages that load quickly
2. There's the 'CDN' that integrates with Google Search to preload and 'iFrame' the site in. Google 'has' to host/'iFrame' the content in their own google.com/amp pages because that's the only way to preload a page to make it display instantly.
1. There's the HTML/CSS/JS library/subset that's a good framework for building pages that load quickly
2. There's the 'CDN' that integrates with Google Search to preload and 'iFrame' the site in. Google 'has' to host/'iFrame' the content in their own google.com/amp pages because that's the only way to preload a page to make it display instantly.