How We Made Our App So Fast it Went Viral in Japan
summary
dev.to is deliberately rebuilt for global speed: pages ship from the edge via Fastly CDN, initial HTML aims under ~14KB, critical CSS is inlined, JS loads with defer/async, user data loads asynchronously, images served by an image CDN with WebP when possible, and Service Worker caches help on repeat visits. The result is concrete: about 1,000,000 page views from Japan over two days, many new signups and posts, so the approach actually works.
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chapters (23)
- 0:00Intro
- 1:15What is Dev2
- 1:45Going Viral
- 2:40November 15 2017
- 3:19November 16 2017
- 3:42Success
- 4:18Investigation
- 4:36Viral story
- 5:33Where traffic came from
- 5:46Why Japan
- 6:23Latency
- 7:20Network Conditions
- 8:05Web Page Size
- 8:45Web Performance
- 9:22YouTube
- 11:18CDN
- 12:55Fastly
- 13:41Render Blocking
- 15:37Async
- 19:52Performance
- 23:04Constraints
- 23:50Silver Bullets
- 25:37Conclusion
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