What are the potential challenges of determining keywords from Google for user-specific web content, especially with the encryption of parameters for non-logged-in users?

The potential challenge of determining keywords from Google for user-specific web content, especially with the encryption of parameters for non-logged-in users, is that it may be difficult to track the search terms users are using to find your site. One way to solve this issue is to implement Google Analytics to track organic search traffic and keywords.

// Google Analytics tracking code
<script async src="https://www.googletagmanager.com/gtag/js?id=GA_TRACKING_ID"></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag(){dataLayer.push(arguments);}
  gtag('js', new Date());

  gtag('config', 'GA_TRACKING_ID');
</script>