title: Does Googlebot crawl elements' attribute tags?
body: <p>Does anyone know if Google will give weight to content in an element's attribute tags?</p>
  
  <p>Is there any documentation supporting or disproving this? Or does the content <em>need</em> to be <em>visible</em>?</p>
  
  <p>For example, is this not recommended (the data in the attributes will display later on the page using javascript):</p>
  
  <pre><code>&lt;div class="myclass" 
      info="here is info about this subject"
      tags="here are tags"
      bio="here is my biography"&gt;
  &lt;/div&gt;
  </code></pre>