Em Shreve

This plugin implements gzip output compression to speed up load times.
The plugin also does a check to see if browsers are incorrectly saying that they do not support GZIP when they actually do. This can speed up load times for a significant portion of users.
<pre><code>For requests with missing or mangled Accept-Encoding headers, inspect the User-Agent to identify browsers that should understand gzip.
* Test their ability to decompress gzip.
* If successful, send them gzipped content!
</code></pre>
See:
<ul>
<li>http://www.stevesouders.com/blog/2010/07/12/velocity-forcing-gzip-compression/</li>
<li>http://en.oreilly.com/velocity2010/public/schedule/detail/14334</li>
<li>http://wpdevel.wordpress.com/2010/07/13/forcing-gzip-httpwww-stevesouders-co/</li>
</ul>

Force gzip

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