jp2112

This plugin automatically enqueues the Font Awesome CSS file from the MaxCDN CDN. Don’t put the code in your theme, use this plugin instead. Then use the Font Awesome CSS tags as normal.
Based on http://wpbacon.com/tutorials/font-awesome-wordpress-cdn/ and http://fortawesome.github.io/Font-Awesome/get-started/
Disclaimer: This plugin is not affiliated with or endorsed by the creators of Font Awesome.
<h3>If you need help with this plugin</h3>
If this plugin breaks your site or just flat out does not work, create a thread in the <a href="https://wordpress.org/support/plugin/enqueue-font-awesome-cdn" rel="ugc">Support</a> forum with a description of the issue. Make sure you are using the latest version of WordPress and the plugin before reporting issues, to be sure that the issue is with the current version and not with an older version where the issue may have already been fixed.
Please do not use the <a href="https://wordpress.org/support/view/plugin-reviews/enqueue-font-awesome-cdn" rel="ugc">Reviews</a> section to report issues or request new features.

Enqueue Font Awesome CDN

Automatically enqueue the Font Awesome font and CSS toolkit from the MaxCDN network.

Timothy Wood

TL;DR This plugin will remove query strings from enqueued static resources like CSS & JavaScript urls.
Resources with a question mark (?) or ampersand (&) in the URL often bypass a proxy cache server. Thus by cleansing the query string from the URL should significantly increase your WordPress site performance. The goal is to improve your speed scores in services like PageSpeed, YSlow, Pingdom, LoadImpact.
Additional funcitonality is to strip the protocal prefix to simplify asset loading to be relative to the protocal path. Attempts to force all linked assets to be of the same protocal.

Improve Enqueued Asset URLs

Improve caching for browsers by improving enqueued asset URLs

Enqueue Font Awesome CDN vs Improve Enqueued Asset URLs