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Font-awesome CDN JS showing as render-blocking on Pagespeed Insights

Instead of directly linking to the Font Awesome CSS, I am using the js from Font Awesome CDN to allow async loading of the icons on the homepage but Google's Pagespeed Insights still marks it as a render-blocking js.

I am using the custom js link provided by Font Awesome CDN and putting it in the <head> section (I could put it towards the end of the <body> also but thats where Font Awesome CDN asks me to put it).

<script src="https://use.fontawesome.com/mycustomcode.js"></script>

And yes, I have turned on Async loading by logging into my account on Font-Awesome-CDN.

As noted above, everything in the <head> is render-blocking.

Another approach is to include the async or defer attributes in the tag:

<script async src="https://use.fontawesome.com/mycustomcode.js"></script>

<script defer src="https://use.fontawesome.com/mycustomcode.js"></script>

@Anupam suggested (rightly) moving the tag to the end of the body, but even FontAwesome suggests including the defer attribute too.

Flavio Copes has a good explanation of script async vs. defer.

As mentioned in @GramThanos's comment, everything inside the <head> is render-blocking. Font-awesome CDN makes the CSS load asynchronously which does speed it up but Google would still see the JS as render-blocking.

Moving the JS near the end of the <body> helped it to not be render-blocking and also get rid of the PageSpeed Insights warning.

I just wanted to share how I reduced the loading page in over 50% with just one change in the way I was loading Font Awesome. Instead of including the script tag directly in the html file, I loaded the js file programmatically via javascript:

var script = document.createElement('script')
script.src = 'https://use.fontawesome.com/releases/v5.8.2/js/solid.js'
document.head.appendChild(script);

script = document.createElement('script')
script.src = 'https://use.fontawesome.com/releases/v5.8.2/js/brands.js'
document.head.appendChild(script);

script = document.createElement('script')
script.src = 'https://use.fontawesome.com/releases/v5.8.2/js/fontawesome.js'
document.head.appendChild(script);