GTmetrix Performance Blog
News, updates and guides on GTmetrix and general web performance
Category: Optimization Explained
Get a better understanding of common web performance concepts.
GTmetrix vs SpeedVitals
In this guide, we compare GTmetrix to SpeedVitals, a very similar Lighthouse-based web performance testing tool.
GTmetrix vs Pingdom
In this guide, we compare GTmetrix to Pingdom, a popular web performance tool.
What is CrUX and Why Should I Care?
We explain what CrUX data is and why any website owner should care about it.
What to Look for in a Solid WordPress Host
We explain the key things to look for in a dependable and high-performing WordPress host.
Interaction to Next Paint (INP) Explained
We explain what Interaction to Next Paint (INP) is, how it impacts performance, and why GTmetrix doesn’t track it (yet).




