performance

Audit web pages with Lighthouse and recommend prioritized performance fixes.

Updated Mar 21, 2026
One-click install
npx skills add https://github.com/aymenhamoudii/digitn-website --skill performance-aymenhamoudii
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: performance
Source: https://github.com/aymenhamoudii/digitn-website/tree/main/.qwen/skills/performance
Command: npx skills add https://github.com/aymenhamoudii/digitn-website --skill performance-aymenhamoudii

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Helps teams and developers identify and remediate performance bottlenecks that cause slow page loads, poor Core Web Vitals, and degraded user experience.

Core Features & Use Cases

  • Lighthouse-driven audits: Analyze LCP, FCP, TBT, CLS and provide prioritized remediation steps.
  • Asset and runtime optimization: Recommendations for image formats, responsive images, font loading, JS/CSS code-splitting, and third-party script strategies.
  • Infrastructure & caching guidance: Server response improvements, CDN/edge caching, compression, and cache-control strategies for faster TTFB and stable caching policies.
  • Use Case: Run a Lighthouse audit for a marketing landing page, reduce LCP by optimizing hero images and deferring non-critical JS, and implement a performance budget to maintain improvements.

Quick Start

Analyze https://example.com with a Lighthouse audit and provide prioritized fixes to improve LCP, reduce TBT, and meet the defined performance budget.

Frequently Asked Questions about performance

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I optimize Core Web Vitals like LCP and CLS for a landing page?

Optimize Core Web Vitals by running a Lighthouse audit to analyze LCP, FCP, TBT, and CLS, then apply prioritized fixes like deferring non-critical JS and optimizing hero images to improve page load metrics.

What's the best way to reduce LCP and improve web performance for single-page apps?

Reduce LCP for single-page apps by optimizing asset delivery through responsive images, font loading strategies, and JS/CSS code-splitting to minimize resource usage and ensure faster page loads.

How does caching strategy affect TTFB and web performance?

Caching strategy improves TTFB and web performance by applying server response improvements, CDN edge caching, and cache-control policies that reduce server latency and stabilize resource delivery.

Can I use this to set and enforce a performance budget for a static site?

You can define and meet a performance budget for static sites by receiving infrastructure and asset optimization recommendations, ensuring JS/CSS reductions and compression maintain target load times.

Why does my web application have a high Total Blocking Time in Lighthouse?

High Total Blocking Time in Lighthouse occurs when main thread execution is blocked by heavy JavaScript, which you can fix by code-splitting JS and implementing third-party script strategies.

Does this provide image optimization recommendations for modern web formats?

It provides image optimization recommendations for modern web formats, advising on responsive images and appropriate formats to reduce asset size and directly improve web performance metrics.