Systems and methods are provided for testing and measuring user interactions with respect to one or more changes introduced into a travel distribution platform. A testing module associated with the travel distribution platform can receive client request data and transmit to one or more engines or services of travel distribution platform, instructions and/or code such that the travel distribution platform provides a modified response to the client request data. The testing module can measure the effect and impact of the modified response across a plurality of variables by monitoring subsequent interactions with respect to the travel distribution platform.