This is why I recommended using the CDN recommended by the project, most do recommend a CDN, for example jQuery has it's own CDN.
As for adoption, that is very much a chicken and egg problem.
As for adoption, that is very much a chicken and egg problem.
DNS resolution time is a pretty significant impact for a lot of sites.
The benefits of hosting say Google Fonts, Font Awesome, jQuery, etc. all with KeyCDN is that I can take better advantage of parallelism if I have one single HTTP/2 connection. Not to mention I have full control over my assets to implement caching (cache-control), expire headers, etags, easier purging, and the ability to host my own scripts.