Namebench is an open-source Domain Name System (DNS) benchmark utility by Google, Inc,[1] which is licensed under the Apache License, version 2.0.[2] Namebench runs on Windows, OS X, and Unix.[1] It is available with a graphical user interface as well as a command-line interface.[1] Its purpose is to find the fastest DNS server one could use.[1] The project began as a 20% project at Google.[1] It can run the benchmark using your web browser history, tcpdump output, or standardized datasets, in order to provide an individualized recommendation.[1] Namebench was written using open-source tools and libraries.[1] It was created by Google engineer Thomas Stromberg.[3]