WebPageTest
webpagetest.orgThe gold standard in web performance optimization
Dev Toolsweb-performancecore-web-vitalsbrowser-testingopen-sourcespeed-testingmonitoringseo

About
WebPageTest is a web performance testing tool that runs real-browser tests from locations around the globe to measure and optimize website speed, Core Web Vitals, and user experience. It provides deep diagnostics and actionable insights across all major browsers, device types, and network conditions. Originally created by Patrick Meenan in 2008 and now maintained by Catchpoint, it is part of an enterprise Internet Performance Monitoring platform.
Problem
Developers struggle to measure and optimize website performance across diverse browsers, devices, and global network conditions.
For
web developers and performance engineers
How it works
Users configure and run real-browser tests from distributed global locations, receiving detailed diagnostics and performance metrics including Core Web Vitals.
Business model
freemium
Status
launched
Company
Catchpoint
Launched
2008
Founders
- Patrick Meenan