Keynote Systems, Inc. provides Internet and mobile cloud monitoring solutions. It has four test and measurement businesses: Web Performance, Mobile Quality, VoIP and Streaming, and Customer Experience/UX. The company develops and sells hardware and software to measure, test, assure and improve the quality of service of Internet and mobile communications. It offers cloud-based testing, monitoring and measurement products and services that enable its customers to know how their web sites, content and applications perform on virtually any combination of actual browsers, networks and mobile devices. The company was founded by Jim Barrick and Andy Popell in 1995 and is headquartered in San Mateo, CA.