Web Performance Benchmarks: Why Milliseconds Matter

Meeting customer expectations for a fast and effortless experience has never been more important. Read on to discover the impact of slow load times and see how the world's leading companies stack up in the race to deliver the best digital experience.

The power of a millisecond: Why speed matters

Customers expect a lot from their digital experiences, and speed is at the top of that list. You need lightning fast web performance to satisfy today’s customers. In the instant gratification era, every millisecond matters. 

To win in the internet era, you have to outpace your competitors. Literally. By a fraction of a second.

  • Walmart found that every 1s improvement in load time increased conversions by 2%.

  • COOK increased conversions by 7% by reducing page load time by 0.85s.

  • Mobify found that each 100ms improvement in their homepage load time yielded a 1.11% increase in conversion.

Speed = traffic

Not only does web performance influence digital CX, but it also has a significant impact on your search rankings. Google’s search results algorithm weighs these three Core Web Vitals strongly in how it ranks websites.

Largest Contentful Paint

Measures page load time. Target is <2.5s.

First Input Delay

Measure time taken to process first interaction. Target is <100ms.

Cumulative Layout Shift

Measures the visual stability of the page. Target CLS is <0.1.

Web Performance Index: How do you stack up?

See the web performance of leading companies across industries and global markets. These are the benchmarks you need to beat to outperform and outrank your competitors.

Optimize web performance with Digital Experience Intelligence

While most professionals focused on website performance are familiar with tools like RUM (real user monitoring) and DEM (digital experience monitoring), the most sophisticated organizations go beyond the basic performance data and use Digital Experience Intelligence platforms like Glassbox to:

  • Find the root cause of performance issues faster

  • Understand how performance issues impact revenue and prioritize projects accordingly

  • Monitor Core Web Vitals in real time – no 30-day delay

Watch video demo

Look no further

See how Glassbox performance analytics surpasses real user monitoring tools to bring you powerful digital experience intelligence.

Disclaimer: Our website ranks websites based on publicly available data. The rankings and scores are generated using an algorithm that takes into account various factors that measure user experience, such as content visibility, responsiveness indicator, input delay, and other relevant performance metrics. Please note that the rankings and scores provided on our website are solely for informational purposes and do not represent any endorsement or recommendation of the listed websites. We make no guarantees or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability, or availability of the rankings and scores. We do not control, monitor, or endorse any of the websites listed on our website, and we are not responsible for any content or actions on those websites. Users are solely responsible for their use of the information and data provided on our website, and we disclaim any liability for any damages or losses arising from such use. We reserve the right to modify, suspend, or terminate the rankings and scores provided on our website at any time without prior notice. We also reserve the right to remove any website from our rankings at our sole discretion. By using our website, you acknowledge and agree to these terms and conditions. If you do not agree to these terms, please do not use our website