NetTest | HTTP/1.1 vs HTTP/2

Detecting…

Checking connection protocol…

🖥 Client-Side Detection

Loading…

🗄 Server-Side Detection

Loading…

⏱ This Page's Connection Timing

Reading navigation timing…

📊 HTTP/1.1 vs HTTP/2 Feature Comparison

Loading…

🏁 Load Race — HTTP/1.1 vs HTTP/2

500 requests per leg of a tiny ~1.6 KB tile — small on purpose, so the race is latency-bound (where HTTP/2 wins) · HTTP/1.1 leg from h1.nettest.dolbow.net (a real HTTP/1.1 endpoint, ~6 connections) · HTTP/2 multiplexes over 1 connection

HTTP/1.1

real HTTP/1.1 endpoint · browser's ~6-connection limit

Waiting…

HTTP/2

1 connection · all requests multiplexed

Waiting…

📡 Connection Waterfall Test

Fires 24 requests simultaneously — shows DNS/TCP/TLS reuse across requests