GTmetrix Performance Blog
News, updates and guides on GTmetrix and general web performance
Basic Analysis With GTmetrix
An in-depth introduction to basic options with GTmetrix.
How to Read a Waterfall Chart for Beginners
Learn what each element of a Waterfall Chart means and how it relates to performance.
GTmetrix Bookmarklet – Start a Test from your Bookmarks Bar!
Quickly start a GTmetrix test on any page using our convenient bookmarklet. Read on for instructions on how to set it up!
Throttling updates and CDN additions
This article may contain outdated material The features outlined in this article are still available. However, the content pertains to the legacy version of GTmetrix. Now offering Broadband (slow, normal, fast) and LTE connection speeds for GTmetrix reporting, Custom Connection speeds for Developer Toolkit users, and new CDN additions.
Black Friday/Cyber Monday 2017: Performance Blips and Blunders of Top Online Retailers
We monitored over 50 sites from the UK and the United States to see how they held up with the online retail rush that is Black Friday and Cyber Monday.
Recent Posts
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How Landing Page Performance Can Silently Make or Break Your Google Ads Campaigns
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How Growth by Sabir Uses GTmetrix MCP and AI to Optimize Performance Across 200+ Ecommerce Brands
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How to Connect the GTmetrix MCP With Claude
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How to Connect the GTmetrix MCP With ChatGPT
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How to Connect the GTmetrix MCP With GitHub Copilot CLI
