Testing Master 1.7 - Version 1.2 Testing Master is a website testing tool of choice for Web developers and QA professionals that should perform an occasional task of load, stress and performance testing. This website testing solution can help you if you need to launch new Web application, renew front-end or back-end, scale or tune the performance of you Web site or intranet application. Also our website testing tool helps to automate the website testing phase of site development process.