Test your website's performance on mobile and desktop
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The Page Speed Analyzer is a comprehensive web performance testing tool that helps you analyze and optimize your website's loading speed and overall performance. It provides detailed insights into Core Web Vitals, resource breakdown, and actionable recommendations to improve your website's user experience.
This tool simulates real-world testing conditions for both mobile and desktop devices, giving you a complete picture of how your website performs across different platforms. Whether you're a developer, marketer, or website owner, this analyzer helps you identify performance bottlenecks and optimize your site for better user engagement and search engine rankings.
Test your website's performance on both mobile and desktop devices with a single click. Switch between device views to compare results instantly.
Get an overall performance score from 0-100 with color-coded indicators showing excellent, good, needs improvement, or poor performance levels.
Analyze all essential Core Web Vitals metrics including LCP, FID, CLS, FCP, TTI, TBT, and Speed Index with visual progress bars.
View detailed website information including domain, protocol, server type, IP address, location, and response time.
Get a detailed breakdown of all resources including images, scripts, stylesheets, fonts, and other files with count and size information.
Receive personalized optimization recommendations based on your website's specific performance metrics and identified issues.
Experience fast analysis with animated loading indicators and smooth transitions between different views and metrics.
Beautiful visual representations with progress bars, color-coded indicators, and easy-to-understand metric cards.
Type or paste the complete URL of the website you want to analyze in the input field. Make sure to include the protocol (http:// or https://). Example: https://example.com
Press the "Analyze Page Speed" button to start the performance analysis. You can also press Enter after typing the URL to begin the analysis immediately.
The analyzer will simulate performance testing for both mobile and desktop devices. This typically takes a few seconds. You'll see an animated loading indicator during this process.
Check the overall performance score (0-100) displayed in a color-coded circle. Green indicates excellent performance, yellow means good, orange suggests improvement needed, and red indicates poor performance.
Use the Mobile 📱 and Desktop 🖥️ toggle buttons at the top of the results to switch between device-specific performance data and compare how your site performs on different platforms.
Scroll through the Core Web Vitals section to see detailed metrics. Each metric has a progress bar indicating performance level and a description explaining what it measures.
Check the Resource Breakdown section to see how many files of each type (images, scripts, stylesheets, fonts) your website loads and their total size.
Read through the Optimization Recommendations section for actionable tips to improve your website's performance. These suggestions are tailored based on your specific metrics.
Measures how long it takes for the first piece of content to appear on screen. Good FCP is under 1.8 seconds.
Measures when the largest content element becomes visible. Good LCP is under 2.5 seconds.
Measures when the page becomes fully interactive and responsive. Good TTI is under 3.8 seconds.
Measures the total time the page is blocked from responding to user input. Good TBT is under 200ms.
Measures visual stability by tracking unexpected layout shifts. Good CLS is under 0.1.
Measures how quickly content is visually displayed during page load. Good SI is under 3.4 seconds.
Measures the delay between user interaction and browser response. Good FID is under 100ms.
Overall score from 0-100 calculated based on all metrics. 90+ is excellent, 70-89 is good, 50-69 needs improvement, below 50 is poor.
Regular Testing: Test your website regularly, especially after making changes, to ensure performance remains optimal.
Mobile First: Always prioritize mobile performance as most users access websites from mobile devices.
Compare Results: Use the device toggle to compare mobile vs desktop performance and identify platform-specific issues.
Act on Recommendations: Don't just view the metrics—implement the optimization recommendations to see real improvements.