description WebPageTest Overview
WebPageTest is a website performance testing service with an open-source testing system behind it. It loads pages in a browser and records how their resources arrive, presenting waterfall charts that help developers identify slow requests and dependencies. Test settings can vary the location and connection conditions, making it useful for examining how the same page behaves under different circumstances rather than relying on a single local measurement. Detailed results support investigation of loading behavior and the visual progress of a page.
The depth of the interface is particularly relevant to developers and performance specialists who need to explain a bottleneck before changing code or infrastructure. WebPageTest offers public testing access alongside commercial offerings, with limits and features depending on the service used. It is a diagnostic tool, rather than web hosting, and does not itself make the tested site faster.
help WebPageTest FAQ
Can WebPageTest test websites from different locations?
Yes, it allows you to choose the location of the server for testing.
How often are updates released?
Updates are regularly released to improve features and support new browsers.
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