GTmetrix

GTmetrix pros and cons

Homepage

Screenshots of gtmetrix.com, captured by Honeyb.

AI visibility by engine

How many of the 41 buyer questions each engine named GTmetrix in.

Claude

1

of 41 questions

Perplexity

1

of 41 questions

Where AI answers name GTmetrix

The buyer questions where at least one AI model named GTmetrix, and how many of the four named it.

AI visibility last measured 29 July 2026. How this is measured.

FAQ

What is GTmetrix?

GTmetrix tests and monitors page performance using Lighthouse, generating scores and prioritised recommendations, with scheduled monitoring and multiple test locations. Its website is gtmetrix.com.

Who is GTmetrix best for?

Ongoing performance monitoring with clearer reporting than a one-off Lighthouse run.

What are the main strengths of GTmetrix?

Scheduled monitoring with alerting on regressions. Waterfall charts and video playback make bottlenecks obvious. Multiple test locations, devices and connection speeds. Usable free tier.

What are the limitations of GTmetrix?

Free tier limits test locations and history. Synthetic lab testing only, without real-user data. Scores can be over-optimised at the expense of real-world experience.

Do AI models recommend GTmetrix?

GTmetrix tests and monitors page performance using Lighthouse, generating scores and prioritised recommendations, with scheduled monitoring and multiple test locations. In Honeyb's measurements, AI names GTmetrix in 1 of 41 buyer questions we track, across 2 of 4 answer engines. It is named by Claude and Perplexity. Last measured 29 July 2026.

Which AI answer engines name GTmetrix?

Across the questions Honeyb measures, GTmetrix is named by Claude and Perplexity. Claude names it in 1 question, Perplexity names it in 1 question.

What is GTmetrix most recommended for by AI?

Its strongest appearance is the question "What's the best page speed testing tool for SEO?", where GTmetrix was named by 2 of 4 models.

How is GTmetrix's AI visibility measured?

Honeyb asks Claude and Perplexity real buyer questions and records which tools each names. This page aggregates those measurements for this tool. See the methodology page for the full method.

Other site performance tools

Google PageSpeed Insights

PageSpeed Insights is Google's free tool reporting Core Web Vitals and performance for a page, combining lab data from Lighthouse with real-user field data from the Chrome UX Report.

Named in 1 of 41 questions

Pingdom

Pingdom Website Speed Test is a free tool analysing page load performance from several global locations, with a paid uptime and real-user monitoring product alongside.

Named in 1 of 41 questions

W

WebPageTest

WebPageTest is an open-source web performance testing tool offering detailed waterfall analysis, filmstrip views and testing from many real locations, browsers and connection profiles.

Named in 1 of 41 questions

DebugBear

DebugBear monitors website performance and Core Web Vitals using both synthetic tests and real user monitoring, with regression alerting and detailed debugging data.

Google Mobile Friendly Test

Google's Mobile-Friendly Test checked whether a page met Google's mobile usability criteria. Google retired the standalone tool, and mobile usability is now assessed through Search Console and Lighthouse.