Breaking The Bloat: Achieving The Fastest Navigations on The Web
summary
Claim: two browser features actually cut real load time. Compression dictionaries (compression dictionaries, DCB/DCZ) send only diffs via simple HTTP headers and cut JS/HTML from hundreds of KB to single‑KB responses (examples: blog 21KB→5KB, beats Hacker News HTML), but require stable bundles and server support; standalone dictionaries and canicompress demo exist. Speculation rules (speculation rules) let browsers prefetch or prerender safely and reduce LCP (~45% in Cloudflare tests; Shopify reports 130–180ms improvements), already shipping in Chromium with Firefox and Safari rolling out.
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chapters (8)
- 0:00Introduction
- 3:01JavaScript bloat problem
- 8:40Platform improvements
- 13:34Compression dictionary transport
- 21:54Compression dictionaries in practice
- 24:02Speculation rules for instant loads
- 33:13Combining techniques for speed
- 34:39Conclusion and call to action
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