Improving First Page Performance

First page load performance can be improved in modern browsers by adding the following lines to the HTML HEAD section of the webpage to prefetch the DNS when you are not using a first party snippet.

<link rel="dns-prefetch" href="//client.px-cloud.net">
<link rel="dns-prefetch" href="//collector-<APPID>.px-cloud.net">
<link rel="preconnect" href="https://collector-<APPID>.px-cloud.net"/>
<link rel="preconnect" href="//client.px-cloud.net"/>