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Magento Defer JavaScript

5000+ downloads
Rating:
99% of 100
  • Magento 2
  • Magento 1

Magento Defer JavaScript is an extension by BSSCommerce that helps to defer parsing of JavaScript for Magento sites to speed up quickly . Effectively improve loading time, engage more customers and your sale is on way to boost up!

    • Instantly and automatically defer parsing of Javascript for Magento
    • Defer parsing of Javascript for Magento till the last moment
    • Defer Iframes loading effectively
    • Improve page ranking with major search engines
    • Work perfectly with Full page cache
Community: 1.4.x.x-1.9.x.x
|
Enterprise: 1.12.x.x-1.14.x.x

Magento Defer JavaScript is an extension by BSSCommerce that helps to defer parsing of JavaScript for Magento sites to speed up quickly . Effectively improve loading time, engage more customers and your sale is on way to boost up!

    • Instantly and automatically defer parsing of Javascript for Magento
    • Defer parsing of Javascript for Magento till the last moment
    • Defer Iframes loading effectively
    • Improve page ranking with major search engines
    • Work perfectly with Full page cache
Community: 1.4.x.x-1.9.x.x
|
Enterprise: 1.12.x.x-1.14.x.x
Links
 

Free
1-Year Support

 

Free
Lifetime Update

 

Free
Installation

 

(*) 30-Day
Money Back

$35.00
$35.00

Get to know

Magento Defer Parsing JavaScript is an extension provided by BSSCommerce and helps to reduce blocking of page rendering. By Google Pagespeed Test, you will know your site speed and why you need to defer loading of javascript. 

Besides, along with Lazy Image Loader, Magento Defer JavaScript Extension is also a useful extension that speeds up Magento store performance by automatically putting JavaScript files to the end of the page after loading all HTML and CSS. 

How Defer Parsing JavaScript Extension Works? 

Automatically defer parsing of JavaScript for Magento sites 

magento defer javascript-after installing

Defer Iframes loading 

If your webpage has some embed code of other sites, it means that the browser has to load JavaScript files of these pages along with your site. This thing will cause defer score of your website decrease or the site does not perform fast enough for better customer experience. Therefore, using Magento Defer JavaScript will help you to defer these Iframes effectively by loading Iframes of these embed sites only when your site finishes loading completely.

Improve Magento sites ranking with major search engines

Site speed is also an important factor to influence your website’s ranking on Search Engine Result Pages. Therefore, with Magento Defer JavaScript extension, your site speed is improved and search engines will evaluate it more highly than other ones with a slower speed.  

Dramatically improve execution and rendering time which helps engage more customers

By deferring parsing of Javascript for Magento sites or in the other hand, moving JavaScript files to the bottom after loading HTML and CSS, websites will load faster and effectively increase the JavaScript Effects that make the site look better. Therefore, customers are likely to have more interaction with Magento sites instead of leaving immediately a site with slow performance.
 

Fix all the problems with Full Page Cache module and it works perfectly with FPC module.

To learn how to configure this defer parsing javascript extension work with Mirasvit FPC, you can follow our guide.

What does Defer JavaScript extension benefit you?

Effective Magento site speed improvement

The fact that scripts must be downloaded, parsed, and executed before the browser can begin to render a web page causes much of delay in time to load the main page at the startup. That ugly truth can make your customers leave your site at their first visit as many studies have shown that users will not tolerate more than a 4 second load time.

Magento Defer Parsing of JavaScript is developed to solve out this issue. It allows optimizing your Magento store performance quickly and easily.

The below picture shows Page Speed Result of http://demo.bsscommerce.com/productpage/index.php before installing Magento Defer JavaScript Extension.

Low loading speed before installing Magento Defer JaveScript

And look at how it changes after Magento Defer JavaScript Extension by BSSCommerce is installed.

Higher loading speed after installingMagento Defer JavaScript Extension

Defer parsing JavaScript for Magento until the last moment

Basically, Deferring means that the other HTML files and CSS is loaded first then parsing of JavaScript files is implemented after all. This has no effect on the performance or usability of your web page, it merely rearranges the loading process so that JavaScript is deferred until the last possible moment - the outcome of this process is that your Magento page appears much quicker after defer parsing of JavaScript. 

Why choose BSS?

Competitive Price

Every merchant needs to survive – we do understand. That’s why we keep the price as low as possible.

Dedicated Support

We are all ears to your problems, either with our extensions or customizations. FREE 1-year support is included.

Open Source

The source code is completely open to inspect, modify and enhance according to your business purposes.

Verified by Marketplace

No worries about the code. This extension has passed the strict Extension Quality Program & been listed on Marketplace.

High Compability

Our modules work well with each other. Even you want ours to be compatible with those of others. We are here to help

Simple installation

We simplify and clarify the installation process, so you can get the extension played for your website in clicks.

Quick Update

Your business and customers’ demands are ever-changing. Our extensions are also up-to-date with new features.

Business expert

Our certified experts get involved from the extension development to support to bring you efficient and budget solutions.

Easy to Use

No need to install bunches of redundant features. We select the most relevant functions to ensure the user-friendliness.

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FAQs

  • Can I request trial?

    We do not provide trial versions for our extensions. However, we are happy to offer 30-day money back guarantee if our extensions fail to function properly due to a bug and we cannot support to fix it. However, we always try our best to assist customer in solving problems.

  • What should I do if I can’t install the extension?

    In case you cannot install the extension, please contact us to ask for more support. We are willing to install it for you based on our policy

  • How can I receive the updated version?

    When BSSCommerce publishes new version of any product, please take notice of the release note tab in the product page to get the update news about the new version. Customers purchased product from us can get the updated version by contacting us via email; we will send the new package version once we receive this kind of request. In addition, you can go to My Account -> My Downloadable Products to download the latest version of the extension.

  • Do your extensions support multiple domains?

    Our license allows you to use a single extension license on one Magento installation. The extension is not domain related, but installation related. If you run several domains on the same instance of Magento, you can use one extension license. However, if you run each website on a new installation of Magento, you need a separate license for each of them.

Release Note
  • v1.0.4: Fix bugs for configuring with Full Page Cache module; Document update: How to fix BSS Defer Javascript for other Full Page Cache modules
  • v1.0.5: Fix bugs for configuring with Full Page Cache module
  • v1.0.6: Fix bugs when working with Full Page Cache module
  • v1.0.8: Option to not defer selected script
  • v1.1.2: Defer iframe
  • v1.1.3: Fix display of path on Top header of homepage and Add to cart on category page when choosing Enable config Show path
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