Website performance optimization for an exceptional user experience

Optimize your website performance for lightning-fast speed and leave your competition behind.

wpt test run

Deliver fantastic brand experiences and convert more users by continuously optimizing your websites

Users expect nothing but the best. Slow navigation through eCommerce flows, lagging or janky loading animations, and poor mobile performance all lead to a drop in user retention and revenue.

Gain complete control over your website's performance with the most accurate and detailed performance metrics, powered by WebPageTest. Analyze and improve website experiences for users with any type of device, browser, network, or location.

Test your website performance!

Test and optimize your website performance for lightning-fast speed with WebPageTest - the gold standard in web performance testing.

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Rapidly improve web performance

Run instant tests to measure and improve your website performance in real-time with options to run Lighthouse tests and get CrUX report in the results.

illustrated web perf optimization screenshot

Comprehensive waterfall charts

Get instant access to the most powerful and widely documented waterfall charts to identify even the most complex of performance issues. Uncover HTML, JS, CSS, image, DOM, and third-party load requests with unparalleled detail.

Accurate, sharable filmstrips

See how your website will load in the real world on a wide variety of devices, networks, and browsers (not just Chrome!) and understand how code changes can impact web performance.

Take the guess work out of performance

Get helpful, actionable suggestions to improve your site’s speed, usability, and resilience. Test the impact of suggested changes on live sites without deploying a single line of code with no-code experiments.

Improve Core Web Vitals

Continuously monitor and optimize CWVs like LCP, INP, CLS, and other critical metrics impacting search engine rankings and user experience over time.

Guy Kobrinsky

VP Cloud Platform

Our business depends on the trust between us and our publisher and advertiser partners. We want to be proactive and fast about resolving issues, and monitoring with Catchpoint is one of the key ways we can do that.

Fix issues before they hit production

Collaborate with QA and Dev teams within a single portal to identify and resolve performance issues in production, staging, and development environments.

Seamlessly shift left

Get access to the WebPageTest API and seamlessly integrate website performance into your CI/CD environment by making webperf an essential part of your development workflow.

Compare test records

Easily compare different records on the same screen to track improvements or regressions over time. Understand your performance before and after deployments to ensure successful releases.

And much more

Third-party request maps, custom metrics, Lighthouse scores, CrUX reports, custom and automated scripting, and more are available within each and every Web Page Instant Test result.

illustrated website waterfall screenshot

Free Online Course

Lightning-fast web performance

Learn to analyze site performance, fix issues, monitor for regressions, and deliver fast, responsive designs from the start.

Learn more about Website Performance Optimization

Solution Brief

Website Experience


How-To: Improving SEO with RUM

Online Guide

5 Steps to Improve Website Performance Online Guide