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description Flood Overview

Flood is a free, open-source tool that analyzes website loading speed by simulating real browser behavior and identifying performance bottlenecks across various network conditions and devices.

help Flood FAQ

What is Flood?

Flood is a free, open-source tool that analyzes website loading speed by simulating real browser behavior and identifying performance bottlenecks across various network conditions and devices.

How good is Flood?
Flood scores 6.82/10 (Fair) on Lunoo, making it rated in the Web Pagetest category.
What are the best alternatives to Flood?
See our alternatives page for Flood for a ranked list with scores. Top alternatives include: Loadster, Locust, OctoPerf.
How does Flood compare to Loadster?
See our detailed comparison of Flood vs Loadster with scores, features, and an AI-powered verdict.
Is Flood worth it in 2026?
With a score of 6.82/10, Flood is a solid option in Web Pagetest. See all Web Pagetest ranked.

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