GTmetrix
GTmetrix is a free tool that analyzes your page.
About GTmetrix
GTmetrix is a website performance testing tool that analyzes webpages and reports on load speed, performance issues, and optimization recommendations. It provides testing from 25 global locations and simulates performance on over 55 mobile and tablet devices, including various iPhone, iPad, Samsung Galaxy/Note, and Google Nexus/Pixel models.
The platform includes Real User Metrics via CrUX data, allowing tracking of Core Web Vitals from actual site visitors and monitoring of trends over periods as far back as six months. It also offers scheduled performance monitoring on hourly, daily, weekly, or monthly intervals, with historical trend tracking and configurable alerts that notify users when a page underperforms or when a report fails to generate.
A free account provides page testing, monitoring, alerts, and configurable analysis options; additional test locations, the full set of mobile/tablet device simulations, and expanded features are available through GTmetrix PRO. The product also offers a REST API. It is intended for website owners seeking to test, monitor, and optimize page performance.
Key features
- Website speed testing with detailed performance reports
- Real User Metrics via CrUX data tracking Core Web Vitals
- Scheduled monitoring with historical performance trend tracking
- Alerts for underperforming pages or failed reports
- Simulated testing on 55+ mobile/tablet devices
- Testing from 25 global test locations
Frequently asked questions
Is there a free tier?
Yes, GTmetrix offers a free account for testing pages, setting up alerts, and configuring analysis options. Full access to all features requires GTmetrix PRO.
What does GTmetrix PRO add over the free plan?
PRO unlocks 55+ additional simulated mobile/tablet devices and additional global test locations beyond what's available for free.
Does GTmetrix support real user monitoring?
Yes, it integrates CrUX data to track Core Web Vitals from actual visitors, with trends visible as far back as 6 months.
Can I monitor performance over time and get alerts?
Yes, GTmetrix can test pages on a schedule and send alerts when a page underperforms or fails to generate a report.
Who is GTmetrix for?
It's designed for website owners who want to test, monitor, and optimize their webpage performance.
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