#web-performance#core-web-vitals#devtools#lighthouse#audit

Web Performance Audit

Independent PiSkill directory guide. The original skill remains hosted by Cloudflare Skills.

What is Web Performance Audit?

Audits website performance with Chrome DevTools workflows, focusing on Core Web Vitals, loading bottlenecks, network chains, caching, layout shifts, and related accessibility issues.

What does Web Performance Audit do?

Web Performance Audit is a Cloudflare skill for diagnosing real website performance with browser tooling. It focuses on Core Web Vitals, render-blocking work, network chains, caching, image and font delivery, layout instability and other issues that affect how quickly and smoothly users experience a page.

Who is Web Performance Audit best for?

  • Frontend teams investigating slow pages
  • Developers optimizing Core Web Vitals
  • Sites preparing a performance-focused release
  • Teams that need evidence from browser traces instead of generic speed advice

Common use cases

  • Investigate slow Largest Contentful Paint
  • Find long request chains and render-blocking resources
  • Diagnose layout shifts and unstable page elements
  • Review caching, image, font and script delivery

How does Web Performance Audit work?

The skill uses Chrome DevTools-style evidence to inspect loading and runtime behavior, then groups findings by user-visible impact. It traces important requests, examines timing and layout behavior, and recommends fixes that can be verified against the same performance signals.

Key benefits

  • Grounds recommendations in browser measurements
  • Connects technical bottlenecks to Core Web Vitals
  • Covers network, rendering and asset-delivery problems
  • Creates a repeatable before-and-after audit workflow

Things to know

  • Performance results vary by device, network and page state
  • One local run is not a substitute for real-user monitoring
  • Recommendations still need validation after deployment

Compatible tools

Claude CodeOpenAI CodexOpenCode

Frequently asked questions

What does the Web Performance Audit skill check?
It checks browser performance signals such as Core Web Vitals, request chains, caching, rendering bottlenecks, layout shifts and asset delivery.
Can it help improve Core Web Vitals?
Yes. The workflow is designed to identify concrete causes behind metrics such as LCP and layout instability so fixes can be prioritized and re-tested.
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