Keynote Systems, Inc. (Keynote) develops and sells technology solutions to measure, test, assure and improve the quality of service of the Internet and of mobile communications. The Company offers Internet test and measurement (Internet) software-as-a-service solutions, and mobile test and measurement (Mobile) software-as-a-service and licensed solutions. Its Internet category includes all of its geographically distributed on demand Website and transaction/application monitoring and measurement services, voice over Internet protocol (VOIP) and streaming measurement services, load testing services, customer experience management services, research and industry scorecard services, and custom professional services. The Mobile category consists of its on-demand Mobile monitoring and testing services, its Global Roamer services and its SIGOS System Integrated Test Environment (SITE) systems. On April 16, 2008, Keynote announced the acquisition of Zandan S.A.