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Features Overview

The PageSpeed Insights MCP server provides a suite of tools designed to help you understand and improve your website's performance.

📊 Performance Analysis

At its core, the server allows you to run comprehensive performance audits using Google's Lighthouse technology.

  • Full Reports: Get detailed breakdowns of Performance, Accessibility, Best Practices, SEO, and PWA scores.
  • Core Web Vitals: Monitor real-world user experience metrics like LCP (Largest Contentful Paint), FID (First Input Delay), and CLS (Cumulative Layout Shift).
  • Device Strategies: Analyze your site as it appears on both Mobile and Desktop devices to ensure a responsive experience.

🔍 Advanced Diagnostics

Go beyond the score with detailed diagnostic tools:

  • Visual Analysis: See exactly what your users see with filmstrips and screenshots of the loading process.
  • Network Waterfall: Visualize the loading sequence of resources to identify bottlenecks.
  • JavaScript Profiling: Understand how script execution impacts your main thread and interactivity.
  • Element Inspection: Identify specific DOM elements that are causing layout shifts or slow paints.
  • Image Optimization: Find images that are too large, unoptimized, or causing layout shifts.

⚖️ Comparison & Benchmarking

  • Side-by-Side Comparison: Compare two different URLs to see how they stack up against each other. This is perfect for benchmarking against competitors or comparing staging vs. production environments.
  • Batch Analysis: Analyze multiple URLs in a single run to get a quick overview of a group of pages.

💡 Smart Recommendations

Don't just see the problems—solve them. The server includes a recommendation engine that:

  • Prioritizes Issues: Ranks problems based on their estimated impact on your score.
  • Provides Actionable Fixes: Gives you clear instructions on how to resolve specific issues.
  • Estimates Savings: Shows you how much time or data you could save by implementing the fixes.

🌍 Real-World Data (CrUX)

Access the Chrome User Experience Report (CrUX) to see how real users are experiencing your site in the wild, complementing the lab data provided by Lighthouse.