Apache Traffic Server™ software is a fast, scalable and extensible HTTP/1.1 and HTTP/2.0 compliant caching proxy server. Formerly a commercial product, Yahoo! donated it to the Apache Foundation, and currently used by several major CDNs and content owners.
Improve your response time, while reducing server load and bandwidth needs by caching and reusing frequently-requested web pages, images, and web service calls.
Easily add keep-alive, filter or anonymize content requests, or add load balancing by adding a proxy layer.
Scales well on modern SMP hardware, handling 10s of thousands of requests per second.
APIs to write your own plug-ins to do anything from modifying HTTP headers to handling ESI requests to writing your own cache algorithm.
Having trouble with builds, configurations or are you getting errors you don't understand? Subscribe to our Users Mailing List or join our #traffic-server channel on The ASF Slack workspace to get help! Use your @apache.org email address to automatically join. If you need a workspace invitation, contact us on our devevelop mailing list, or ask any ASF committer.
Can't get your plugin to work? Have questions about the ATS code? Or maybe you have suggestions for improvements or new features? Get help from developers or start a discussion on our dev discussion list.
Learn how to ask good questions, create useful bug reports and how to apply patches.
Visit our wiki to see a list of Projects we are currently working on.
Learn how to create patches to the code or the documentation and how to debug Apache Traffic Server.
We've tagged github issues that have a low entrance barrier.
Installing, configuring and administrating Apache Traffic Server
Developing Apache Traffic Server plug-ins and how the code works
A running list of your most common questions
Collaboration and interesting topics around the project