GTmetrix
gtmetrix.comTest your website speed and find out how to optimize it.
Dev Toolsweb-performancepage-speedlighthousecore-web-vitalsmonitoringtestingoptimization
About
GTmetrix is a web performance testing and monitoring tool that analyzes pages using Lighthouse and generates actionable performance scores and recommendations. It tracks Core Web Vitals, historical performance trends, and real user metrics via CrUX data. Users can monitor pages on a schedule, set up alerts for slowdowns, and test from 26 global locations across 55+ simulated devices.
Problem
Website owners struggle to identify why their pages are slow and what steps to take to improve performance.
For
web developers, site owners, and performance engineers
How it works
GTmetrix runs Lighthouse-based analysis on a given URL, produces a scored report with bottleneck details, and can monitor pages on a recurring schedule with alerts.
Business model
freemium
Status
launched
Company
GTmetrix