Track historical trends and be aware of performance dips or spikes on an hourly, daily, weekly, or monthly basis. Visualize alerts triggered for your pages directly on the graphs, including notifications …

Understand your Visitor's Experience with Real User Metrics (CrUX) Using data from Chrome User Experience Report (CrUX), you can see exactly how real users experience your page load.

This data focuses on performance metrics that reflect the actual conditions visitors encounter when visiting a website. Unlike lab data where the environment can be specified and/or controlled, CrUX …

GTmetrix uses Google's Lighthouse - the modern standard in web performance to assess your website's performance and provide comprehensive, easy-to-understand recommendations and reports.

Learn how to keep track of your site performance over time and extract more value from GTmetrix. The following guides will guide you on setting up monitoring, configuring Alerts, utilizing History Graphs, …

Think of the Structure audits in the new GTmetrix Report as the instruction manual for better web performance, and the Performance Score metrics as the stopwatch of your actual web performance.

These real-world insights offer a different perspective on your page’s performance to go with the lab (synthetic) data provided in the GTmetrix Report. In this guide, we’ve explained what data is …

In the simplest terms, LCP measures how long it takes for the largest "content element" (e.g., hero image, heading text, etc.) on your page to become visible within your visitor's viewport. LCP is one of …

Because other metrics like LCP and FCP affect your page's visual completeness, SI is a great way to track their impact in the grand scheme of things. Think of Speed Index as a unified metric that …

The Performance Score influences your GTmetrix Grade the most, and involves 6 key metrics, each with its own weighting. Read more about how the Performance Score is calculated here.