performance-audit-websites
Audit website performance. Use for Core Web Vitals, LCP, INP, CLS, Lighthouse or browser performance checks, bundle and asset weight, image/video loading, font loading, third-party scripts, animation cost, hydration cost, and production-readiness performance review.
npx skills add TheGoat395/Codex-Skills --skill performance-audit-websites --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Performance Audit Websites Use this skill to keep premium sites fast enough that visual ambition does not punish users. ## Workflow 1. Inspect the project, scripts, routes, local/deployed URL, production surfaces, and available QA/deployment tooling. 2. Read [Performance Audit Websites Guide](references/performance-audit-websites-guide.md) before claiming the site is ready. 3. Run the narrowest meaningful checks for the risk: visual, mobile, accessibility, performance, forms, media, SEO, analytics, deployment, or handoff. 4. Fix issues when they are in scope; otherwise record exact evidence and remaining risk. 5. Summarize commands, URLs, screenshots/checks, changed files, and what was not tested. ## Always Protect - Inspect before changing or shipping: framework, package scripts, build output, routes, forms, media, animation stack, deployment target, environment variables, analytics, SEO metadata, accessibility risks, and available browser QA tooling. - Do not claim something was tested unless it was actually tested; report exact commands, URLs, screenshots, viewports, failures, skipped checks, and remaining risk. - Verify desktop and mobile rendered output, not only source code
- Workflow
- Always Protect
What does the performance-audit-websites skill do?
Audit website performance. Use for Core Web Vitals, LCP, INP, CLS, Lighthouse or browser performance checks, bundle and asset weight, image/video loading, font loading, third-party scripts, animation cost, hydration cost, and production-readiness performance review.
How do I install it?
Run `npx skills add TheGoat395/Codex-Skills --skill performance-audit-websites --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From TheGoat395/Codex-Skills, a repository with 115 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.