What are the key differences between WebPageTest and GTmetrix?

Compare WebPageTest and GTmetrix side by side on Lunoo to see detailed feature differences, AI scores, and expert analysis.

How are WebPageTest and GTmetrix scored?

WebPageTest has an AI score of 9.2/10 and GTmetrix has an AI score of 8.5/10. Scores are based on category fit, feature coverage, pricing signals, public reception, and recency.

WebPageTest vs GTmetrix 2026 - Compared

WebPageTest

GTmetrix

WINNER WebPageTest

WebPageTest edges ahead with a score of 9.2/10 compared to 8.5/10 for GTmetrix. While both are highly rated in their res...

emoji_events WINNER

WebPageTest

8.88 Great

Web Hosting Get WebPageTest open_in_new

GTmetrix

6.31 Fair

API Testing Get GTmetrix open_in_new

WebPageTest Free plan available

payments

GTmetrix From $29/mo Free plan available

psychology AI Verdict

WebPageTest edges ahead with a score of 9.2/10 compared to 8.5/10 for GTmetrix. While both are highly rated in their respective fields, WebPageTest demonstrates a slight advantage in our AI ranking criteria. A detailed AI-powered analysis is being prepared for this comparison.

emoji_events Winner: WebPageTest

verified Confidence: Low

Ready to decide? Get WebPageTest arrow_forward

description Overview

WebPageTest

WebPageTest remains the gold standard for in-depth website speed analysis. Its comprehensive waterfall charts provide granular insights into every resource loaded, allowing developers to pinpoint bottlenecks with precision. Advanced configuration options enable testing from various locations and devices, simulating real-world user conditions. While the interface can be overwhelming for beginners,...

GTmetrix

GTmetrix combines the strengths of Google PageSpeed Insights and YSlow, providing a comprehensive performance analysis in a user-friendly interface. It offers visual insights, detailed reports, and actionable recommendations for optimizing website speed and Core Web Vitals. The tool allows users to test from various locations and devices, simulating real-world user experiences. While the free vers...