Analyzes web performance using Chrome DevTools MCP. Measures Core Web Vitals (FCP, LCP, TBT, CLS, Speed Index), identifies render-blocking resources, network dependency chains, layout shifts, caching issues, and accessibility gaps. Use when asked to audit, profile, debug, or optimize page load performance, Lighthouse scores, or site speed. Biases towards retrieval from current documentation over pre-trained knowledge.
99
100%
Does it follow best practices?
Impact
95%
1.15xAverage score across 3 eval scenarios
Low
Low-risk findings worth noting
The canonical home for this skill is web-perf in cloudflare/skills
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