Goose - Open-Source Load Testing
Test. Measure. Scale.
Goose is Tag1's powerful, open-source load testing tool, written in Rust and inspired by the Python based Locust Framework. It simulates real-world traffic to reveal performance bottlenecks, validate scalability, and give you the confidence to launch quickly and reliably.
From Simulation to Optimization
How Goose Works
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Simulate.
Simulate real user traffic to test site performance before it impacts users.
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Measure.
Automated reports with summaries, segmentations, and test-to-test comparisons.
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Validate.
Validate scalability by testing peak loads confidently on pre-production infrastructure.
Government & Public Sector
Powering a Faster, Reliable london.gov.uk
With just a quarter of recommended fixes, Tag1 helped the Greater London Authority cut page response times by 70%, reduce database queries by 87%, and shrink front-end payloads by 25%, delivering a faster, more reliable london.gov.uk for millions of residents.
Goose Resources
Get Hands-On with Goose Load Testing
Go deeper into how Goose works and how to use it effectively. Explore proven methods, real examples, and detailed guidance that help teams build confidence in their performance testing.
The Tag1 Team
Meet Our Performance Testing Experts
Behind every high-performing site is careful planning and precise execution. Our team combines architectural insight with hands-on testing to turn complex performance challenges into clear, reliable results.
Meet the TeamInsights | Load Testing
Goose Insights for Scalable Sites
Learn how Goose, Tag1’s open-source load testing framework, helps teams simulate real-world traffic, validate scalability, and uncover performance bottlenecks before they reach production. These featured posts share expert insights, client use cases, and practical guidance to help you get the most from Goose.
Real Traffic. Real Insights.
Turn Traffic Into Insights Before It Hits Production
Uncover bottlenecks, validate scalability, and ensure performance under real-world conditions. Gain confidence that your site will perform under any load.