Defer Parsing of JavaScript

Compatible With: Community 2.1, 2.2

Tech Specifications

Current Version:
Stable Build
26 March, 2019
Extensions, Site Optimization, Performance
Supported Browsers:
Chrome Linux: 42, 43, 44 Mac: 39, 44 Windows: 39, 40, 42, 43, 44 Firefox Linux: 31, 38, 39, 40, 41 Mac: 31, 38, 39, 40, 41 Windows: 31, 38, 39, 40, 41 Opera Linux: 7, 7.1, 8, 9 Mac: 7, 7.1, 8, 9 Windows: 7, 7.1, 8, 9 Safari Linux: 7, 7.1, 8, 9 Mac: 7, 7.1, 8, 9 Windows: 7, 7.1, 8, 9 Edge Windows: 42 IE Windows: 10, 11, 8, 9
License Type:
Open Software License 3.0 (OSL-3.0)


Defer Parsing of JavaScript by Meetanshi help in defer parsing of Javascript for Magento 2 to speed up the store's page load time and improve the user experience.


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According to Google, "Optimizing for performance is all about understanding what happens in these intermediate steps between receiving the HTML, CSS, and JavaScript bytes and the required processing to turn them into rendered pixels - that's the critical rendering path."

With each second that a web page takes to load, the conversion rate decreases.The task of improving the site speed is easier said than done :(

JavaScript causes Magento 2 store to be slow. The reason is a browser executes a script before an HTML. If you check the web page speed in the Google PageSpeed tool, you may find the issue of "Eliminate render-blocking javascript above-the-fold content". Meetanshi has developed Defer Parsing of Javascript for Magento 2 to improve the load time of the store by loading the HTML script before the Javascript.

Optimize the store performance for better user experience! It contributes to gaining trust from users and benefits the business! Don't make the visitors wait for the page to load. With Defer Parsing of Javascript for Magento 2, improve the Google Pagespeed Score of your Magento store web page!


How does the extension work?

Enable the extension from the backend.

After the extension is enabled, at the time of web page load, the extension executes HTML and CSS scripts before the JavaScript. With this method, it appears as if the load time of the page has improved.

To learn more about how the extension works, read our Defer Parsing of JavaScript for Magento 2 User guide.



  • Effectively increase the site speed by automatic defer parsing of Javascript in Magento 2.
  • Defer Iframes loading.
  • Solves the issue of render-blocking Javascript.
  • Improved SERPs.
  • Improved Google Page Speed Score.
  • Improved website performance.
  • No more full page cache issue.
  • Defer parsing of Javascript for Magento 2 till the last moment.


Like all our extensions, this extension also comes with:

  • Free Lifetime Updates
  • Multi-Store Supported
  • 100% Open Source


If you have any questions about this extension, you can Contact Us or Submit a Ticket, and we reply you back within a few hours. 

Release Notes

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  • Compatible with CE: 2.1 2.2
  • Stability: Stable Build
  • Description:

    Initial Release


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The best place to start if you need help with a specific extension is to contact the developer. All Magento developers have both a contact email and a support email listed.

Q & A

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