Web Protocols for Frontend Developers — Robin Marx — We Love Speed 2023

“In this talk, we’ll look at the high-level options you as a developer have to steer HTTP/2 and 3 behaviour, and how those actually work internally. We’ll consider preloading, lazy loading and fetchpriority/priority hints. We take a critical look at keeping your core HTML/CSS smaller than 14KB in the 0-RTT era. And we’ll also discuss the new hotness of 103 Early Hints, aka ‘Server Push Killer’.”