title: Google Pagespeed "Third-Party Usage" issue
body: <p>I have optimized my website in every possible way, but when I am testing performance in google <a href="https://developers.google.com/speed/pagespeed/insights/?url=https%3A%2F%2Fzubizi.com%2Fgst-billing-software-for-retail-shop.html&amp;tab=mobile" rel="nofollow noreferrer">pagespeed</a> tool it shows "Third-Party Usage 4 Third-Parties Found"</p>
  
  <p>I have used <strong>defer / async</strong> loading external scripts and used <strong>preconnect</strong> also but this error is still showing.</p>
  
  <p><a href="https://i.stack.imgur.com/TPflT.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TPflT.png" alt="enter image description here"></a></p>
  
  <p>What should I do???</p>
  
  <p>Here are full details of the performance check:</p>
  
  <p><a href="https://developers.google.com/speed/pagespeed/insights/?url=https%3A%2F%2Fzubizi.com%2Fgst-billing-software-for-retail-shop.html&amp;tab=mobile" rel="nofollow noreferrer">https://developers.google.com/speed/pagespeed/insights/?url=https%3A%2F%2Fzubizi.com%2Fgst-billing-software-for-retail-shop.html&amp;tab=mobile</a></p>