title: Do you know a webpage appearance comparator?
body: <p>I need a tool to compare the design of a website, I do not want to compare the HTML code only, but the output design.</p>
  
  <p>Is this even possible? also is there any opensource program of this kind?</p>
  
  <p>I have searched google, but I only get one candidate so far which is an HTML Match.</p>