Sure, but if you have any custom JavaScript that needs to load before the page can render, using a CDN for just the JS libraries does not really help. If you w

Sure, but if you have any custom JavaScript that needs to load before the page can render, using a CDN for just the JS libraries does not really help. If you want the benefit of a CDN, you need to put your own code up there. And if you’re doing that, you might as well host your own copy of the libraries too, so the browser won’t have to talk to two different CDNs.