title: Is there any way to find and remove unused CSS and Javascript common to all html pages?
body: <p>My website has many webpages and I am trying to clean up my stylesheets and scripts. About 10% or more of each js/css are not being used by any of the html pages in my website. What I need is to remove the common unused and redundant css and js. I did a bit of research and found <a href="https://unused-css.com/detect-unused-css?url=http%3A%2F%2Fpro.4d-life.com">this</a>. But it is not free.<br>
  NOTE: </p>
  
  <ul>
  <li>Some of the js/css are being called by more than one html page and still there is a portion of each js/css not being used by any of the html pages which are calling them.</li>
  <li>My website is only compatible in Chrome.<br></li>
  </ul>