Magento 2 Defer JavaScript | Rocket JavaScript
Magento 2 Rocket JavaScript is a solution that allows you to defer JavaScript loading and speed up page rendering. It moves all JS code to the bottom of the page automatically (before tag end). This speeds up page load and increases page speed score.
Optimize the JS bundle, minimize its size and reduce loading and execution time. Deliver your pages faster for the utmost customer experience.
Live Demo 
Don’t Let JS Slow Down Your Store
A lot of things load in the background when customers visit your website. JavaScript included. But not all JS is vital so it only delays the loading and increases the execution time.
Magento 2 Rocket JavaScript Extension fixes that.
Defer JS loading by moving all unnecessary JS to the bottom. Reduce the initial loading time and deliver your pages to customers faster!
Make Sure to Load Important JavaScript
When you defer the JavaScript loading you speed up a page rendering and define what JS to load later.
However, it doesn’t work for all pages. You might not want to defer JavaScript on the homepage or other CMS pages.
Exclude pages from the deferred JavaScript loading with the Magento 2 JavaScript Extension.
Make sure you load all vital JS and delay the loading of others.
Disable Deferred JS for Some Scripts
You should never rush to defer all JavaScript on your store since some of them might be initiated by an event, like GTM.
Keep all critical scripts at the top of the page using the Magento 2 Deferred JavaScript.
Just specify the JS strings to ignore and the extension will automatically add the data-rocketjavascript="false" attribute to all of them.
Enjoy Straightforward Setup
JavaScript configuration in Magento is never easy. It requires a lot of time and certain skills. But not with our JS extension for Magento.
All you need is just define the JavaScripts you’d like to defer on all pages of your website, and specify what pages to exclude.
We also provide a script that allows you to compile a list of used JavaScripts. So you know what to optimize with the deferred loading.
The most common questions about the Magento 2 Defer JavaScript Extension
Can I install your Rocket JavaScript module via the composer?
Do you offer installation for this extension?
Does this extension come with free support and updates?
Yet, if you'd still like to update after 365 days pass, you can renew access to updates and support for 50% of the extension's price. Find more in our license agreement.
Do you offer any discounts?
How many websites can I use Magefan extensions on?
This means the extension will work on all websites within one Magento admin panel. At the same time, you don’t need a license key to use the extension on stage, dev or test websites.
- Included
- Rocket JavaScript v2.2.3
