Panel 2: Network
summary
Network latency and round trips are the biggest page‑load killers on 3G, so concrete fixes matter: images are 60% of bytes and many sites misencode PNG/JPEGs, so server workflows that do server‑side transcoding and on‑demand resizing (CDN caching, WebP where beneficial) cut payloads dramatically; a Client Hints prototype sends device info in headers; bandwidth estimation is unreliable, but HTTP/2 server‑push replaces inlining; WebSockets require SSL and ping/pong fallbacks; periodic analytics beacons (every 5s) can drain battery—batch then sleep.
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chapters (10)
- 0:00Panel introduction
- 2:58Network performance overview
- 14:20Network speed and feedback
- 22:31Optimizing for low bandwidth
- 29:31Build cycle optimizations
- 34:42Image handling challenges
- 37:15Compression vs performance
- 41:07HTTP/2 and inlining
- 43:45Websockets and mobile
- 50:53Future performance APIs
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