w3prodigy

This plugin changes the internal WordPress script queues for the following AJAX Libraries: jQuery, jQuery UI, Prototype, Scriptaculous, MooTools, Yahoo! User Interface, Dojo, SWFObject, Ext-Core, Chrome Frame and WebFont Loader.

Google Hosted AJAX Libraries

Change the internal WordPress scripts to use Google Hosted Scripts

Voorsie

Often when trying to optimize the Google Pagespeed score, there is one script which still causing the ‘Leverage browser caching’ rule popping up: Google’s own gtag.js and/or analytics.js file…
With this plugin you will be able to cache this file on your local server and enable browser caching for longer than 2 hours. The plugin will check every day if there is a newer version of the file to keep the cache up to date.

Cache External Scripts

Save the Google Analytics file (gtag.js / analytics.js) locally to be able to cache it for longer than 2 hours for a better PageSpeed score!

Google Hosted AJAX Libraries vs Cache External Scripts