2 ms·
> Also "Core Web Vitals" is deliberately not scoped to just performance. What do you define as performance then? And how is it different from speed?
by jameslk 5y ago
> Also "Core Web Vitals" is deliberately not scoped to just performance.
What do you define as performance then? And how is it different from speed?
- paulirish 5y agoperf is all about making loading fast, scrolling & animations smooth, and interactions responsive. The classic RAIL model captures the scope of perf well. perf and speed are synonyms. CLS is a bit of a loner as there really aren't other metrics these days that also capture non-perf signals. But again, this distinction of CLS as a non-perf metric is for webperf nerds only, IMO.