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.

Advanced Testing with Scripting

WebPageTest's scripting language enables everything from multi-step testing, request blocking and manipulation, custom headers and more.

WebPageTest can execute arbitrary JavaScript at the end of a test, enabling a wide variety of custom defined metrics.