Website Speed Test
Test how fast any website loads. Get detailed performance metrics, resource analysis, and optimization recommendations.
Load Time
Tested URL
HTML Size
CSS Files
JS Files
Images
Fonts
Technical Checklist
Compression
Browser Caching
SSL / HTTPS
Server
Recommendations
Improve server response time
Your page took over 3 seconds to load. Consider using a CDN, optimizing server-side code, or upgrading hosting.
Enable compression
Enable Gzip or Brotli compression on your server to reduce transfer size by 60-80%.
Add browser caching headers
Set Cache-Control headers to allow browsers to cache static assets and reduce repeat load times.
Switch to HTTPS
HTTPS is essential for security, SEO, and user trust. Get a free SSL certificate from Let's Encrypt.
Reduce CSS files
You have CSS files. Consider bundling them to reduce HTTP requests.
Reduce JavaScript files
You have JS files. Bundle and minify them to improve load performance.
Optimize images
You have images. Use lazy loading, WebP format, and proper sizing to reduce page weight.
Reduce HTML size
Your HTML is KB. Consider removing inline styles, unused code, and minifying HTML.
Great job!
Your website is well-optimized. Keep monitoring performance as you add new features.
Need More Power?
These free tools are powered by the GoScreenAPI. For programmatic access, batch processing, webhooks, and higher limits — try our REST API.
Comprehensive Website Speed Test
Our website speed test offers precision by measuring real-time performance metrics. Tests run using the latest Chromium browser. Expect accurate page load time results. These include critical metrics like TTFB, FCP, LCP, CLS, and TBT.
The tool captures and analyzes data against Google Core Web Vitals thresholds. This guarantees actionable insights. Specifically, a TTFB checker evaluates server response times within milliseconds. FCP and LCP focus on how rapidly users see content. CLS scrutinizes layout stability, while TBT assesses total blocking time.
Real-Time Data Measurements
Why choose our solution? It provides real-time data with a focus on accuracy. Each pagespeed test uses authentic browsing environments. Metrics include page load time with precision up to 100ms. Large file support reaches up to 10MB.
In practice, understanding site performance extends beyond numbers. Our tool offers a detailed waterfall chart. This visualizes each request's impact on load time. Developers pinpoint bottlenecks with ease. Optimize performance by examining individual resources, such as images or scripts.
Actionable Recommendations
The tool doesn’t just measure. It guides with actionable recommendations. When your website speed test scores against thresholds, you receive clear instructions. This ensures efficient optimization.
Key improvements come from reducing file sizes, enhancing compression, optimizing server configurations, and minifying CSS and JavaScript. Each suggestion aims to tackle specific deficiencies found during the test.
Use Cases for Developers
- Identify slow-loading scripts affecting TBT and improve site performance.
- Analyze resource loading order to optimize page load time.
- Determine server response issues via the TTFB checker.
- Understand user experience impact using CLS data.
- Optimize code with suggestions tailored to your website's needs.
A well-executed website speed test is crucial. Fast sites lead to improved user experiences. They also positively impact SEO. Testing in conditions that replicate real-world scenarios makes data actionable.
Insights and Optimization
Our tool employs the latest industry standards to measure core web vitals. A website speed test offers more than raw data; it provides insights. Comparing your scores to Google's benchmarks ensures you're on the right track.
Regular tests help maintain site performance at peak levels. This becomes a cornerstone of digital strategy for any developer. The waterfall chart and detailed reports simplify complex data. Focus on specifics rather than guesswork.
Streamline your development process with precise analytics and targeted recommendations today.
Frequently Asked Questions
What is a website speed test?
A website speed test measures the time it takes for a webpage to load and become interactive. It evaluates various metrics, including Time to First Byte (TTFB), First Contentful Paint (FCP), and Largest Contentful Paint (LCP), providing insights to optimize performance.
What are Core Web Vitals?
Core Web Vitals are specific metrics that Google uses to evaluate user experience on the web. These include LCP, FCP, and Cumulative Layout Shift (CLS), focusing on loading, interactivity, and visual stability, respectively.
How is LCP measured?
Largest Contentful Paint (LCP) measures the time it takes for the largest visible content element to load in the viewport. A good LCP score is under 2.5 seconds, indicating an optimal loading experience for users.
What does TTFB mean in website performance?
Time to First Byte (TTFB) measures the duration between the user's request and the first byte of data received from the server. A TTFB of under 200 milliseconds is considered excellent, promoting better overall website speed and user experience.