GTmetrix Performance Blog
News, updates and guides on GTmetrix and general web performance
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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.
Guidelines for a faster Shopify, Squarespace, Wix (or other website builders) website
In this article, we’ll go through the major concepts of performance optimization catered towards web builder platforms so you can ensure your hand-built site loads fast.
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.
General GTmetrix Test Errors
Learn more about General GTmetrix Test Errors and how to troubleshoot them.