Defer JavaScript Magento 2 Extension

(29 customer reviews)


Magento 2 Defer JavaScript extension is used for website optimization and increase the Google page speed score.

  • Defer JavaScript extension is used to decrease the loading speed of the page
  • Improve the GTmetrix speed ranking and the Google page speed score
  • Move all JavaScript at the bottom of the page
  • The admin section controller
  • Simple configuration
  • Improves Store Performance

Support Service


Product price
Additional options total:
Order total:
90 Days Free Support
90 Days
Free Support
Free Lifetime Update
1 Year Update


Everybody wants to decrease the loading time of the website. More loading time of the website makes a negative impression on your customer. Also, it affects the GTmetrix speed ranking and the Google page speed score.

Browser first loads <script> of page and then load the HTML content. Thus loading speed of the website takes additional time. So customers are tiresome to see your website, and they leave it without seeing your store. Our Defer Javascript Magento 2 extension helps to defer the parsing of javascript for Magento 2 to improve the speed of the website.

Defer JavaScript Magento 2 extension is used to improve the loading speed of the website.  Defer the parsing of javascript extension moves all JavaScript at the bottom of the page. That means when the page is loaded, first HTML and CSS are loaded and then defer the parsing minimizing JavaScript is executed.

Defer JavaScript Magento 2 extension helps to increase the Google page speed score. This extension helps to increase product sales by decreasing the loading speed of your store.

29 reviews for Defer JavaScript Magento 2 Extension

  1. Eric

    Thanks for the assistance. It resolved our issue. Great support indeed. I preferred this company for any kind of Magento 2 solutions.

  2. satheq

    Still the same after installing and activating this extension with all required ssh Magento commands getting an error. But the team provides such a instant & great support. Thank you so much.

  3. Cialis alternative

    Regards! I like it.

  4. Hoofddorp

    The most user-friendly interface I’ve seen among similar extensions. The module works without any issues and support by cynoinfotech was very quick and helpful.

  5. Maria Denny

    Very easy to setup, works great to increase my website speed. Nice extension.

  6. shopmamipremama

    Excellent. In 5 minutes pass PageSpeed Score from 89% to 92% and Yslow score from 64% to 69% and the Fully loaded time from 8.2 s to 5.6 seconds.
    Thank so much.

  7. Sheared

    This extension improved speed and hence the user experience! Very good extension and quick support.

  8. Barsan

    With this extension, the team saving out of problems & giving useful recommendations. Also, on other features that boost my site speed.

  9. shin

    A super tiny, native performant library for lazy-loading JS, CSS, images, iframes… Defer almost anything, easily speed up your website.

  10. Jeffe

    This extension is very helpful to boost my website page speed score above 90%. Working perfectly and saved a lot of time!

  11. Mitchell

    My online store loads very fast after using this extension.

  12. Renne

    After installing Defer Javascript extension, even customers left positive response and comments about site loading. My sales also increase a lot. Thank you so much!

  13. Pioty

    I had some query about this extension. Developing team answer all my questions. Very satisfied with this extension.

  14. satheq

    Bug-free code with exceptional support!

  15. Andrea

    Using this extension my site has been improved and attract more customers. I am really pleased with this extension.

  16. Oleski

    I tried this extension to increase Google Page Speed Score on my Magento 2 store and it worked like a magic! Recommended!!

  17. Fredder

    This is one of the very few extension that I’ve tried and it worked immediately. No issues, no changes required, and the results phenomenal.

  18. Lawalah

    This extension is one of the best extension that I’ve tried and it worked immediately. No issues and works as described, and the results are definitely as promised. It gave me a 100% rating on GTmetrix.

  19. Azidan

    This extension is compatible with my Magento 2.3.0 and it worked fine. Happy to purchase this extension from cynoinfotech.

  20. Nahia

    Very useful and descriptive extension. Easy install and works with my Magento 2.4 without any issue. Recommended!!

  21. Hobbs

    I would recommend this company to everybody who is searching for any kinds of extension! The team will be happy to assist at any time!

  22. Joneth C

    After using Defer Js extension , my store is load faster at all time high. Great work.

  23. Najaf

    This extension gave my store a 100% rating on it worked fine in Magento 2.3. Nice extension.

  24. Agriculture Solutions

    After using defer javascript extension, loading speed is more faster as comparatively earlier. Thank you so much.

  25. Gartam

    We update our store in Magento 2.3 and get the issue with this defer js extension. But the support team solve our issue very well. We are very impressed with the support and their outstanding work performance.

  26. Welch

    I had a problem with the extension which was affected by the theme that already installed. I talked to the support team and within a few hours, the problem was solved. Absolute recommendation!

  27. Ehana

    Recommended all must use this extension for Magento 2 website. Great feature to increase the speed score.

  28. Alfer

    Thanks for the extension. It works as described. Also it works with all Magento 2 version perfectly.

  29. kerin

    I highly recommend installing for Magento 2 websites! This is a nice and very helpful extension. I easily installed it and speed up my website quickly.

Add a review

Your email address will not be published. Required fields are marked *

Do you have the installation service?

Yes, we have a professional installation service.
You can purchase an installation service when ordering an extension.
After Order Please provide the required detail for installation extension.

Can I request a free trial?

Sorry, We don’t provide any trials of Magento extensions

Can I check a CynoInfotech extension on a development website before transferring it to a live?

Yes, you can install any CynoInfotech Module on a development website and configure all the settings there before doing it on your live website.

how can I ask for If I need Some additional features as customization in the CynoInfotech module?

Please leave your additional features on our contact form

09 September 2020

- Update package and update version 1.0.1
- Make compatible with magento 2.4.x

3 September 19

- Make compatible with magento 2.3.x

18 October 17

- update code 
- Bug fix

14 October 17

- Initial release