title: mod_expires or mod_headers?
body: <p><a href="http://www.askapache.com/htaccess/speed-up-sites-with-htaccess-caching.html" rel="noreferrer">This page</a> says this:</p>
  
  <blockquote>
    <p>If a response includes both an Expires header and a max-age directive,
    the max-age directive overrides the Expires header, even if the
    Expires header is more restrictive</p>
  </blockquote>
  
  <p>It seems like both of the mod_expires and mod_headers are active in my server.<br>
  Which of them is preferable and can you comment the advantages of each of them?<br>
  Thank you.</p>