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Loadmill

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description Loadmill Overview

Loadmill is an open-source website speed testing tool that analyzes a webpage’s performance by measuring various metrics like First Contentful Paint, Largest Contentful Paint, and total load time, providing detailed insights into optimization opportunities.

help Loadmill FAQ

Is Loadmill an open-source website speed-testing tool?

No, Loadmill is an AI-powered test-automation platform rather than a public page-speed analyzer. Its documentation describes replaying real user behavior across devices and platforms to create tests for continuous delivery.

What does Loadmill use real user behavior for?

Loadmill analyzes recorded or modeled user flows and turns them into automated tests that can be replayed across devices and platforms. This is intended to validate application workflows, not to report browser metrics such as Largest Contentful Paint.

Can Loadmill generate API tests?

Yes, Loadmill documents an AI-powered API test-case generator that can compose requests and correlate responses into dynamic test cases. Its example flow uses a POST request followed by a GET request and checks a returned identifier and status response.

How is Loadmill different from SpeedVitals?

Loadmill focuses on functional and regression testing of user flows, APIs, and mobile applications, while SpeedVitals measures web performance and Core Web Vitals. A team could use both because a passing workflow test does not prove that a page has good LCP or TTFB.

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