Page Speed Test
Analyze page performance, Core Web Vitals, and get optimization suggestions powered by Google Lighthouse.
What This Tool Analyzes
A comprehensive page speed audit powered by Google Lighthouse.
Performance Score
Get an overall performance score from 0-100 based on lab data from a simulated page load using Lighthouse.
Core Web Vitals
Measure LCP, FCP, CLS, and TBT — the key metrics Google uses to evaluate real-world user experience.
Accessibility Audit
Check for accessibility issues including color contrast, ARIA labels, keyboard navigation, and semantic HTML.
Best Practices Check
Verify your page follows web best practices for security, modern APIs, and browser compatibility.
Optimization Suggestions
Get actionable recommendations with estimated savings to improve load times and user experience.
How It Works
Three simple steps to test any page's speed and performance.
Enter a URL
Type or paste any web page URL and choose between Mobile or Desktop analysis strategy.
Run the Test
Google Lighthouse loads your page in a simulated environment and measures performance, accessibility, SEO, and best practices.
Review Results
See your scores, Core Web Vitals, a page screenshot, and prioritized optimization opportunities.
Frequently Asked Questions
Common questions about page speed testing and Core Web Vitals.
What is a good page speed score?
A score of 90-100 is considered good (green), 50-89 needs improvement (orange), and 0-49 is poor (red). Most websites score between 50-80. Focus on Core Web Vitals rather than chasing a perfect 100 — real user experience matters more than lab scores.
What are Core Web Vitals?
Core Web Vitals are a set of real-world performance metrics defined by Google. They include Largest Contentful Paint (LCP) measuring loading speed, First Contentful Paint (FCP) measuring initial render time, Cumulative Layout Shift (CLS) measuring visual stability, and Total Blocking Time (TBT) measuring interactivity. These directly impact search rankings.
Why are my Mobile and Desktop scores different?
Mobile tests simulate a mid-tier phone on a throttled 4G connection, while Desktop tests simulate a standard laptop on a fast connection. Mobile scores are typically 20-40 points lower because of CPU throttling and slower network simulation. Both perspectives are important since most web traffic is mobile.
How can I improve my page speed?
Common improvements include optimizing and lazy-loading images, minifying CSS and JavaScript, enabling text compression (GZIP/Brotli), reducing unused code, implementing browser caching, using a CDN, and reducing server response times. The Opportunities section in your results shows the highest-impact changes you can make.
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