The Apache Traffic Server (TS or ATS) is a modular, high-performance reverse proxy server, generally comparable to Squid. It was created by Inktomi, and distributed as a commercial product called the Inktomi Traffic Server, before Inktomi was acquired by Yahoo!. Traffic Server has been actively used inside of Yahoo for over 4 years, serving billions of requests every day. As of fall 2009, Traffic Server is an Open Source project, and in April 2010 the Apache Traffic Server was promoted to a top-level project of the ASF.
Pyramid is a small, powerful, and flexible set of Web development components that supersedes both Pylons 1. 0 and repoze.bfg. It can be used to write clean and fast applications, and supports plugging in a variety of components like storage, templating engines, and authentication mechanisms.