网页统计代码示例：Google Analytics 和 Facebook Pixel

<script>
  // Google Analytics
  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)}(window,document,'script','https://www.google-analytics.com/analytics.js','ga');

  ga('create', 'UA-XXXXXXXX-X', 'auto');
  ga('send', 'pageview');

  // Facebook Pixel
  !function(f,b,e,v,n,t,s){if(f.fbq)return;n=f.fbq=function(){n.callMethod?n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n;n.push=n;n.loaded=!0;n.version='2.0';n.queue=[];t=b.createElement(e);t.async=!0;t.src=v;s=b.getElementsByTagName(e)[0];s.parentNode.insertBefore(t,s)}(window,document,'script','https://connect.facebook.net/en_US/fbevents.js');
  fbq('init', 'XXXXXXXXXXXXXXX');
  fbq('track', 'PageView');
</script>
<p>请注意，上述代码中的 'UA-XXXXXXXX-X' 和 'XXXXXXXXXXXXXXX' 应该替换为您自己的 Google Analytics 跟踪 ID 和 Facebook 像素 ID。</p>