title: Do most browsers automatically search for the favicon.ico?
body: <p>I would like to know if it is necessary for me to specify it like this:</p>
  
  <pre><code>&lt;link rel="icon" href="[URL]" type="image/x-icon" /&gt;
  &lt;link rel="shortcut icon" href="[URL]" type="image/x-icon" /&gt;
  </code></pre>
  
  <p>or can I just include it in the root and the browser will look for it?
  Also what's the difference between  <code>rel="icon"</code> and <code>rel="shortcut"</code> ?</p>