Checking proxy anonymity
<p>I am building a small C# app to check how anonymous a proxy is.</p>

<p>What "tests" should I perform in order to determine that a proxy is absolutely anonymous? </p>

<p>Is the following reliable? </p>

<pre><code>http://www.iprivacytools.com/proxy-checker-anonymity-test/
</code></pre>

<p>If it is I could build a <code>httpwebrequest</code> using a given proxy to parse results</p>
