GTmetrix Performance Blog
News, updates and guides on GTmetrix and general web performance
Category: Using GTmetrix
Spotlights on GTmetrix features and how to get the most out of them.
Adding Custom CDN Hostnames
If you’re sure your website uses a performant and reputable CDN, you can add the hostname to GTmetrix tests to avoid triggering the “Use a CDN” audit.
Using the GTmetrix Waterfall Chart
We’ll show you all the features of the GTmetrix Waterfall Chart in this guide.
Investigating Lighthouse Report Generation Errors
The methods described below are fairly technical and require some understanding of browser execution and Chrome DevTools.
GTmetrix Lighthouse Errors
Error generating a Lighthouse report? Learn about different Lighthouse errors and why they happened.
How to Determine Alert Conditions
We show you how to make the best use of GTmetrix Alerts to stay on top of your webpage’s performance!
