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Performance
4 pieces tagged Performance. Everything else is one click away in the rail beside it.
31 documents · press / to search
7 min read
The cost of JavaScript: what a 100/100 Lighthouse score actually requires
A framework floor you cannot budget below, four techniques that move the number, and the measurement discipline that keeps it there. Written from a site that scores 100/100/100/100 with zero route-level JavaScript.
PerformanceCore Web VitalsFrontendNext.js
6 min read
Interaction to Next Paint: what actually moves it, and what only looks like it does
INP measures three things and most advice only addresses one of them. A breakdown of input delay, processing and presentation delay — with the fixes that move each, and the popular optimisations that move none.
PerformanceCore Web VitalsINPFrontend
5 min read
Semantic caching for AI applications: what to cache, and what it costs you when wrong
Four cache layers in front of a language model, the similarity threshold that decides whether a cache is helpful or dangerous, and the invalidation problem nobody mentions.
AICachingRedisPerformance
5 min read
The business case for a rebuild: how to tell a real one from an expensive redecoration
Four questions that decide whether a redesign will move anything, the metrics worth committing to before you start, and the failure mode where a site gets prettier and converts worse.
UI/UXProductStrategyPerformance
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