Modern web notes by dimasites

Research and notes about modern HTTP/2 and HTTP/3 features http103 Early Hints, Server Push and more

#1.1. HTTP2 103 Early Hints header with Link : preload resources demo waterfall

With many :) links for preload:

(screenshot from Chrome v115)

#1.2. HTTP2 103 Early Hints resource separate request

Waterfall showing how a separate GET-request for hinted resource has been sent:

(screenshot from WebPageTest)

#1.3. HTTP2 NetLog 103 with Early Hints

(screenshot from chrome://net-export/ → HTTP/2 → SESSION and visualized by chromium netlog viewer)

#2.1. HTTP2 Server Push demo waterfall:

(screenshot from FireFox v116)

LICENSE: CC BY 4.0

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