Welcome to WebPageTest
WebPageTest is a web performance tool providing deep diagnostic information about how a page performs under a variety of conditions.
Each test can be run from different locations around the world, on real browsers, over any number of customizable network conditions.
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Advanced Testing with Scripting
WebPageTest's scripting language enables everything from multi-step testing, request blocking and manipulation, custom headers and more.
Learn about WebPageTest scripts →
Capturing Custom Metrics
Learn about Custom Metrics →