Google Hackathon on AIR - Preload & Prefetch
Channel: Google Search Central
Date: 25/01/2018

Sign up for more tips & tricks: https://events.withgoogle.com/hackathon-on-air/

Links from the deck: 
Preconnect: https://www.igvita.com/2015/08/17/eliminating-roundtrips-with-preconnect/
Preload use case and fallback example: https://github.com/filamentgroup/loadCSS