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<a href="https://trafficserver.apache.org/">Home</a>
<a href="downloads">Downloads</a>
<a href="https://docs.trafficserver.apache.org/en/latest/index.html">Documentation</a>
<a href="https://cwiki.apache.org/confluence/display/TS/Apache+Traffic+Server">Wiki</a>
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<a href="https://apache.org/security/">Security</a>
<a href="https://www.apache.org/foundation/sponsorship.html">Donate</a>
<a href="https://www.apache.org/foundation/thanks.html">Thanks</a>
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<div id="blurbbox">
<p style="padding-top: 20px;">Apache Traffic Serverâ„¢ software is a fast, scalable and extensible HTTP/1.1 and
HTTP/2 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.</p>
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<a title="Downloads" href="/downloads">Downloads</a>
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<a href="https://twitter.com/trafficserver" class="twitter-follow-button" data-show-count="false">Follow
@trafficserver</a>
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<h1 id="Overview">Overview</h1>
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<div class="fourcol">
<div id="blurbbox">
<ul>
<li>
<b>Caching</b>
<p>Improve your response time, while reducing server load and bandwidth needs by
caching and reusing frequently-requested web pages, images, and web service
calls.</p>
</li>
<li>
<b>Proxying</b>
<p>Easily add keep-alive, filter or anonymize content requests, or add load
balancing by adding a proxy layer.</p>
</li>
</ul>
</div>
</div>
<div class="fourcol">
<div id="blurbbox">
<ul>
<li>
<b>Fast</b>
<p>Scales well on modern SMP hardware, handling 10s of thousands of requests per
second.</p>
</li>
<li>
<b>Extensible</b>
<p>APIs to write your own plug-ins to do anything from modifying HTTP headers to
handling ESI requests to writing your own cache algorithm.</p>
</li>
</ul>
</div>
</div>
<div class="fourcol last">
<div id="blurbbox">
<ul>
<li>
<b>Proven</b>
<p>Handling over 400TB a day at <a href="https://www.yahoo.com/">Yahoo!</a> both as
forward and reverse proxies, Apache Traffic Server is battle
hardened. Also visit our <a href="users.html">Customers page</a> for
some of our corporate users and supporters.</p>
</li>
</ul>
</div>
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<h1 id="LearnMore">Learn More</h1>
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<div class="banner">
<h3>Get Support</h3>
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<ul class="blurblist">
<li>
<p>Having trouble with builds, configurations or are you getting errors you don't understand?
<a href="mailto:users-subscribe@trafficserver.apache.org">Subscribe</a> to our Users Mailing List
or join our <b>#traffic-server</b> channel on <a href="https://the-asf.slack.com/" title="Slack">
The ASF Slack</a> 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.</p>
</li>
<li>
<p>
Can't get your plugin to work? Have questions about the ATS code? Or maybe you have suggestions for
improvements or new features? <a href="mailto:dev-subscribe@trafficserver.apache.org">Get help</a>
from developers or start a discussion on our dev discussion list.</p>
</li>
<li>
<p>
<a href="https://cwiki.apache.org/confluence/display/TS/Filing+useful+bug+reports">Report</a> or confirm
bugs or try out the latest patches from our <a href="https://github.com/apache/trafficserver/">Bug
Tracker</a></p>
</li>
<li>
<p>
<a href="https://cwiki.apache.org/confluence/display/TS/Filing+useful+bug+reports">Learn how</a> to ask
<i>good</i> questions, create useful bug reports and how to apply patches.</p>
</li>
</ul>
</div>
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<div class="fourcol">
<div id="blurbbox">
<div class="banner">
<h3>Get Involved</h3>
</div>
<ul class="blurblist">
<li>
<p><a href="mailto:users-subscribe@trafficserver.apache.org">Subscribe</a> and
help out on the users Mailing List or simply share your usecase or experience.
For sometimes speedier responses check out our Slack channel
<b>#traffic-server</b> on <a href="https://the-asf.slack.com/" title="Slack">
The ASF Slack</a> workspace.
</li>
<li>
<p>
Impress developers or help others by <a href="mailto:dev-subscribe@trafficserver.apache.org">participating</a>
on
our dev discussion list or <a href="mailto:commits-subscribe@trafficserver.apache.org">follow</a> the
latest development on
our commits list.</p>
</li>
<li>
<p>
<a href="https://cwiki.apache.org/confluence/display/TS/Filing+useful+bug+reports">Report</a> issues or
bring patches to our <a href="https://github.com/apache/trafficserver/">Bug Tracker</a></p>
</li>
<li>
<p>
Visit our wiki to see a list of
<a href="https://cwiki.apache.org/confluence/display/TS/Projects" title="Apache Traffic Server - Projects">Projects</a>
we are currently working on.</p>
</li>
<li>
<p>
Learn <a href="https://cwiki.apache.org/confluence/display/TS/Contributing">how to create patches</a> to
the code or the
documentation and how to debug Apache Traffic Server.</p>
</li>
<li>
<p>We've <a href="https://github.com/apache/trafficserver/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22">tagged
github issues</a> that have a low entrance barrier.</p>
</li>
</ul>
</div>
</div>
<div class="fourcol last">
<div id="blurbbox">
<div class="banner">
<h3>Web Resources</h3>
</div>
<ul class="blurblist">
<li>
<a href="https://docs.trafficserver.apache.org/en/latest/admin-guide/index.en.html">Administrator's Guide</a>
<p>Installing, configuring and administrating Apache Traffic Server</p>
</li>
<li>
<a href="https://docs.trafficserver.apache.org/en/latest/developer-guide/index.en.html">Developer's Guide</a>
<p>Developing Apache Traffic Server plug-ins and how the code works</p>
</li>
<li>
<a href="https://cwiki.apache.org/confluence/display/TS/FAQ">Frequently Asked
Questions</a>
<p>A running list of your most common questions</p>
</li>
<li>
<a href="https://cwiki.apache.org/confluence/display/TS/Apache+Traffic+Server">Wiki</a>
and <a href="https://blogs.apache.org/trafficserver/">Our blog</a>
<p>Collaboration and interesting topics around the project</p>
</li>
</ul>
</div>
</div>
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<div class="twelvecol banner">
<h1 id="News">News</h1>
</div>
</div>
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<div class="twelvecol">
<div id="blurbbox">
<ul>
<li><b>August 3, 2024:</b> We are releasing both v9.2.2 and v8.1.8. We recommend everyone to upgrade to one of these versions of ATS.</li>
<li><b>June 12, 2024:</b> We are releasing both v9.2.1 and v8.1.7 which include security fixes. We recommend everyone to upgrade to one of these versions of ATS.</li>
<li><b>January 23, 2023:</b>The first version of the stable v9.2.x ATS branch is now available for download. This version, \
v9.2.0, is a feature and bug fix release over previous v9.1.x releases.</li>
<li><b>December 15, 2022:</b> We are releasing both v9.1.4 and v8.1.6 which include security fixes. We recommend everyone to upgrade to one of these versions of ATS.</li>
<li><b>August 9, 2022:</b> We are releasing both v9.1.3 and v8.1.5 which include security fixes. We recommend everyone to upgrade to one of these versions of ATS.</li>
<li><b>March 21, 2022:</b>The latest version of the stable v8.x ATS release is now available for download. This version, v8.1.4, is a bug fix release over previous 8.x releases.</li>
<li><b>March 11, 2021:</b>The latest version of the stable v9.x ATS
release is now available for immediate download! This version,
v9.1.2, is a bug fix release over previous 9.x releases.</li>
<li><b>November 2, 2021:</b>We are releasing both v9.1.1 and v8.1.3 which include security fixes. We recommend everyone to upgrade to one of these versions of ATS.</li>
<li><b>August 17, 2021:</b>We are releasing both v9.1.0, which is our next current release.</li>
<li><b>June 24, 2021:</b>We are releasing both v9.0.2 and v8.1.2 which include security fixes. We recommend everyone to upgrade to one of these versions of ATS.</li>
<li><b>April 16, 2021:</b>We are pleased to announce v9.0.1, which is bug-fix release on the v9.x LTS train.</li>
<li><b>December 14, 2020:</b>We are pleased to announce the first release of ATS v9.0.0, which is our new LTS release cycle. It's available for immediate downloads from the regular Downloads page.</li>
<li><b>December 2, 2020:</b>We are releasing both v8.1.1 and v7.1.12 which include bug fixes. We recommend everyone to upgrade to one of these versions of ATS.</b>
</ul>
</div>
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<h1 id="Misc">Miscellaneous</h1>
</div>
</div>
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<div class="sixcol">
<div id="blurbbox">
<ul>
<li><a href="https://github.com/apache/trafficserver/">View Git code repository</a></li>
<li><a href="https://cwiki.apache.org/confluence/display/TS/Supported+Operating+Systems">Supported Operating
Systems</a></li>
</ul>
</div>
</div>
<div class="sixcol last">
<div id="blurbbox">
<ul>
<li><a href="https://www.apache.org/licenses/">License</a></li>
<li><a href="https://cwiki.apache.org/confluence/display/TS/Building">Build Instructions</a></li>
<li><a href="https://cwiki.apache.org/confluence/display/TS/Committers">Committers</a></li>
<li><a href="https://mail-archives.apache.org/mod_mbox/trafficserver-users/">Users Archives</a></li>
<li><a href="https://mail-archives.apache.org/mod_mbox/trafficserver-dev/">Dev Archives</a></li>
</ul>
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Copyright &copy; 2018
<a href="https://www.apache.org/">The Apache Software Foundation</a>.
Licensed under
the <a href="https://www.apache.org/licenses/">Apache License</a>,
Version 2.0. Apache Traffic Server, Apache,
the Apache Traffic Server logo, and the Apache feather logo are
trademarks of The Apache Software Foundation.
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