See how much faster
your site can be
Popular websites at full speed
Our analysis highlights how top businesses can achieve 100/100 speed and performance with NitroPack.
170% better Performance score
7.36s faster page load time
Passed Core Web Vitals
134% better Performance score
6.62s faster page load time
Passed Core Web Vitals
31% better Performance score
3.08s faster page load time
Passed Core Web Vitals
How is the NitroPack site
speed test different?
You’ve already used tools like Google PageSpeed Insights and GTmetrix? They’re great to show you where your site stands—but that’s where they stop. NitroPack goes a step further and reveals what’s possible.
By analyzing your site’s current performance and applying 60+ optimizations, the NitroPack test demonstrates how much faster your site could be. It’s the perfect tool to go beyond benchmarks and transform your bottom line.
See what’s possible with a faster website in exact numbers
View improvements across site speed metrics
Forecast boosts in user engagement and revenue metrics
4800+
tests run in the last 30 days
237%
avg. boost in performance scores
< 2.75 seconds
avg. page load time
What’s inside your NitroPack site speed report?
Discover the speed and business improvements your site can achieve with top-tier optimization—from Core Web Vitals forecast to projected business outcomes.
Core Web Vitals Forecast
Understand how your site performs in terms of Google’s key metrics: Largest Contentful Paint (LCP), Interaction to Next Paint (INP), and Cumulative Layout Shift (CLS). See where you stand and how NitroPack can help you excel.
PageSpeed Metrics:
Before and After
Get a detailed before and after of your Performance score and Google Lighthouse metrics like First Contentful Paint (FCP), Total Blocking Time (TTFB), and Google Speed Index.
Desktop and Mobile Insights
Compare performance improvements across devices with separate insights for desktop and mobile. Discover how NitroPack can optimize your site on any device.
Business Metrics Improvements
See the potential impact of NitroPack on your business metrics, including projected increases in page views per session, conversion rates, and average order value (AOV).
“The only plugin to achieve top scores
in Google’s PageSpeed Insights.”
Learn about web performance
Understanding web performance is key to improving user experience, search rankings, and conversions. Explore common questions and learn how speed impacts your website’s success.
Why is site speed important?
Site speed is critical as users will abandon a web page if it takes longer than 2.75 seconds to load, according to a NitroPack & Google webinar. A fast website improves user experience, lowers bounce rates, and increases conversions—Amazon found that every 100ms of latency cost them 1% in sales.
Site speed also directly impacts SEO, as Google considers page performance a ranking factor, especially with the introduction of Core Web Vitals. Simply put, a slow site can hurt your traffic, engagement, and bottom line.
How fast should my website be?
Your site should load within 2.75 seconds to meet user expectations and Google’s benchmarks. For Core Web Vitals, Largest Contentful Paint (LCP) should occur within 2.5 seconds, and Interaction to Next Paint (INP) should be under 200ms.
Slow sites lose visitors—research shows bounce rates increase by 32% as load time goes from 1 to 3 seconds. Faster websites create better user experiences, attract more traffic, and keep more users engaged with your websites.
What are Core Web Vitals?
Core Web Vitals are a set of metrics defined by Google that measure key aspects of user experience on the web. They include Largest Contentful Paint (LCP) for initial load time, Cumulative Layout Shift (CLS) for layout stability, and Interaction to Next Paint (INP) for measuring responsiveness to user actions such as clicking on a button or a link.
Core Web Vitals have become the standardized way to measure user experience on your website and are key to providing your site visitors with enjoyable, fast, uninterrupted browsing.
What is a Performance score?
The Performance Score, calculated by Google Lighthouse, is a composite metric that represents the usability and speed of your website, including page render time. It evaluates your site’s performance in a controlled environment and network conditions and uses a 0-100 scale, with scores above 90 indicating excellent performance.
The Performance score combines key lab metrics such as Time to Interactive (TTI), Total Blocking Time (TBT), Speed Index (SI), and First Contentful Paint (FCP). Research shows that a 0.1-second improvement in load time can increase conversion rates by 8%, making this score a key metric for testing and debugging purposes toward faster site speed.
Why test your website on mobile and desktop?
Mobile devices often rely on slower networks, like 4G or even 3G, which can significantly impact loading times. Additionally, mobile hardware, such as CPUs and GPUs, is generally less powerful than desktops, making it harder for devices to handle unoptimized websites efficiently.
Testing your site on mobile ensures it performs well under these constraints. Google’s mobile-first indexing prioritizes mobile performance for rankings, making it essential to optimize for these devices. Desktop testing, meanwhile, remains critical to ensure top performance for users on high-speed connections and more powerful devices.
Core Web Vitals vs PageSpeed score: which is more important?
Core Web Vitals (CWVs) are based on real user monitoring (RUM) data, capturing how real users experience your website in the field. In contrast, the Performance score from tools like Google Lighthouse uses lab data, which simulates loading conditions for debugging purposes.
While the Performance score is useful for identifying issues, it doesn’t always reflect the actual user experience. CWVs are prioritized by Google and directly impact user satisfaction. Optimizing for CWVs ensures your site performs well under real-world conditions, making it more important for long-term success.
FAQs
What is the NitroPack Site Speed Test?
The NitroPack Site Speed Test is a tool that shows you how fast your website could perform with NitroPack’s optimizations applied. Unlike traditional speed tests, it provides insights into potential improvements for speed, Core Web Vitals, and business metrics.
Is the NitroPack Site Speed Test free to use?
Yes, the NitroPack Site Speed Test is completely free to use. You can generate a detailed report without any cost or commitment.
How accurate are the results provided by the Site Speed Test?
The NitroPack’s Site Speed Test delivers reliable insights into your website’s performance by utilizing Google Lighthouse. To ensure a fair comparison, we temporarily disable any existing caching solutions optimizing your site and apply NitroPack’s optimizations to the unoptimized version. By simulating a clean slate, the test accurately reflects how NitroPack can enhance your site’s speed and overall performance.
How do I access my performance report?
Once the test is complete, your performance report is available directly on the results page. You’ll also receive a link to the report via email for easy access later.
What site performance metrics are included in the report?
The report includes key metrics like Core Web Vitals (LCP, INP, CLS), PageSpeed score, desktop and mobile performance, Lighthouse metrics, and business vitals such as projected improvements in conversions and average order value.
Do I need technical knowledge to use the Site Speed Test?
No, the NitroPack Site Speed Test is designed for everyone, regardless of technical expertise. It provides clear, actionable insights in an easy-to-understand format.
How can I achieve the improvements suggested in the report?
The easiest and most automatic way to achieve the suggested improvements is by installing NitroPack. Once set up, NitroPack instantly applies 60+ optimizations, including advanced caching, image compression, lazy loading, critical CSS, and JavaScript optimization. All you have to do is sit back, relax, and watch your results go from red to green.
Can I test multiple pages or just one?
Currently, the NitroPack Site Speed Test allows you to test one page at a time. For testing multiple pages, you can rerun the test with different URLs.
Why did my test fail?
A test may fail due to issues like incorrect URLs, SSL issues, 403/404 errors, server errors, invalid IP, source exceeding 5MB, AMP page detected, or empty website response. Double-check the URL and ensure your site is accessible before rerunning the test.
How does NitroPack improve Core Web Vitals and SEO?
NitroPack applies a wide range of optimizations to enhance your Core Web Vitals. It improves LCP with advanced caching, removing render-blocking resources, and optimizing images for faster initial load times. For CLS, it ensures stability by implementing width and height attributes to prevent unexpected layout shifts. To boost INP, NitroPack reduces unused CSS and defers JavaScript loading, guaranteeing a responsive and seamless user experience.
