Edge Optimization in 2020
summary
Covers concrete tactics: aim for 1.3 seconds time-to-first-meaningful-paint to win SEO and reduce conversion loss (users drop ~25% per extra second; 2.4s is a danger zone), cut TLS/HTTP round trips from roughly eight to three with modern TLS + HTTP/2/3, use a full-site CDN to shorten RTTs (500 ms TTFB target without global CDN is unrealistic), empirical wins from CDN on first paint, Fastly-style features like request collapsing and origin-shield avoid stampedes, and watch for geo problems like TCP resets under 5 ms from network-level blocking.
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chapters (18)
- 0:00Start
- 3:01PageRank May Use Time to First Byte (TTFB)
- 4:02Google Increasingly Uses Lighthouse
- 7:14Google Definitely Uses Lighthouse for Mobile Rank
- 8:10After Clicking, Load Times Affect Conversion
- 9:29Bounce Rates Rise with Load Times
- 9:52The Business Value of Performance
- 12:16Measures of Success
- 14:13The Path to First Byte
- 14:58What's Fast and What's Slow with HTTPS
- 16:26Round Trips: Old Versus Modern Stacks
- 17:14Round Trips: Future Stack (2019)
- 21:50Effect on TTFB: Same Continent
- 26:57The Path to First Paint
- 29:32The Necessity of a CDN for Assets and Pages
- 32:15New Censorship in Russia
- 33:53How Russian Blocking Works
- 37:05The Present (Please Care About This)
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