Comprehensive Performance Analysis
Everything you need to optimize website speed
Core Web Vitals
Measure LCP (Largest Contentful Paint), CLS (Cumulative Layout Shift), and INP (Interaction to Next Paint) with detailed metrics.
Performance Score
Get a comprehensive performance score (0-100) based on Google's PageSpeed Insights algorithm.
Mobile & Desktop
Test your website on both mobile and desktop devices to ensure optimal performance across all platforms.
Historical Tracking
Track performance metrics over time. See improvements and identify regressions with visual trend analysis.
Issue Detection
Automatically identify performance bottlenecks, slow-loading resources, and optimization opportunities.
Detailed Reports
Export comprehensive reports with metrics, recommendations, and actionable insights for your development team.
Real-Time Analysis
Get instant performance analysis with detailed breakdowns of loading times, render blocking, and resource optimization.
Optimization Recommendations
Receive specific, actionable recommendations to improve your Core Web Vitals and overall performance score.
Performance Monitoring
Schedule regular performance checks and get alerts when your metrics drop below acceptable thresholds.
Core Web Vitals Explained
Understanding the metrics that matter
LCP (Largest Contentful Paint)
Measures loading performance. The LCP marks when the largest content element becomes visible.
Target: ≤ 2.5 seconds
CLS (Cumulative Layout Shift)
Measures visual stability. CLS quantifies how much visible content shifts during page load.
Target: ≤ 0.1
INP (Interaction to Next Paint)
Measures interactivity. INP assesses the responsiveness of your page to user interactions.
Target: ≤ 200ms
FCP (First Contentful Paint)
Measures initial loading. FCP marks when the first text or image is rendered on the screen.
Target: ≤ 1.8 seconds
How It Works
Simple steps to better performance
Enter Your URL
Simply paste your website URL and select whether you want to test mobile or desktop performance.
Run Analysis
Our tool uses Google PageSpeed Insights API to analyze your website's performance in real-time.
Review Metrics
Get detailed Core Web Vitals scores, performance metrics, and identify areas for improvement.
Optimize & Track
Follow actionable recommendations to improve your scores. Track progress over time with historical data.
Perfect For
Who can benefit from PageSpeed Lab
Web Developers
Identify performance bottlenecks and optimize website speed for better user experience.
SEO Professionals
Ensure your websites meet Core Web Vitals requirements for better search rankings.
E-commerce Sites
Improve page load times to reduce bounce rates and increase conversions.
Agencies
Provide clients with comprehensive performance reports and optimization recommendations.
Enterprise Teams
Monitor performance across multiple sites and track improvements over time.
Content Creators
Ensure fast-loading pages to keep visitors engaged and improve user experience.