JSpeed Pro

JSpeed Pro 2.5

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Author sarisan
Creation date
  • Added support to convert images to the new AVIF format
  • Improved management of the images size attributes
  • Improvements and bugs fix
  • Mandatory updates for compatiblity with Joomla 5 and Joomla 4.4
  • Improved Adaptive Contents support
  • Improvements and bugs fix
  • New feature to clear the cache via global backend button
  • Improved images conversion and optimization for small images
  • Improved adaptive contents
  • Updates for Joomla 4.3 and bugs fix
  • Auto configuration tool™
  • Integration with the Google PageSpeed API™
for joomla3 and joomla4 ,Please install a different package
  • New parameter for Adaptive Contents™: it's possible to add a piece of essential CSS code that should be present in the lightweight version of a page generated with Adaptive Contents for bots and page speed tools.
    This is valuable, for example, if you choose to remove all CSS but still need some styles to preserve a basic layout or if you experience warnings in Google Search Console about 'Mobile Usability Issue - Content Wider Than Screen & Clickable Element Too Close'
  • Added support to convert CDN links for images having data-srcset attribute
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Adaptive Contents™: this technology makes it possible to remove certain parts of HTML or CSS/JS files only for bots and page speed tools to raise up the page speed score without losing website functionality for regular visitors.

The Adaptive Contents feature makes it possible to remove certain parts of HTML or CSS/JS files only for bots and page speed tools.
This dramatically raises the page speed score without losing website functionality for regular visitors.
Thanks to this feature when the page is visited by bots and page speed tools such as the Google PageSpeed Insights, Lighthouse or GTMetrix it's possible to:
1.Remove certain HTML elements from the page, for example to reduce the CLS value
2.Remove certain JS files
3.Remove certain CSS files
4.Remove all JS and CSS code
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JSpeed 1.9 - 21/02/2022


  • New feature Instant Page technology™: Instant Page uses just-in-time preloading. This feature, compatible with both desktop and mobile devices, preloads a page right before a user clicks on it
  • New feature to lazy-load HTML elements on page scroll
  • New feature to exclude lazy-loaded images by CSS selectors
  • New options to exclude features by menu item
  • New option to lazy-load images only using HTML native mode
  • New option to exclude only type="module" files
  • Added support for Brotli caching to the htaccess optimizations
  • J4 compatibility with the Accessibility Checker
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1.8 - 14/08/2021
  • New feature to lazy-load HTML elements that slow down page and LCP
  • Initial code rewriting and update for the next version of PHP 8.1
  • Final updates and compatibility fix for the versions of Joomla 3.10 and Joomla 4 released on August 17, 2021
1.7.2 - 30/04/2021
  • Improved system to load js files by Javascript
  • Update to fully support 'module' scripts also for Joomla 4
  • New admin module for plugin dahsboard
  • New system to exclude lazy loading by page url
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