Magento is a very advanced and flexible eCommerce solution, but it is also a slow and does not score to well on Page speed tests out of the box.
Magento does include a setting for combining css and js files in admin under System > Configuration > Developer, activating this will help and reduce the number of resources that needs to be loaded per page, but it just combines the files it does not compress and optimize them.
To get a faster website, reduce the page size, optimize the loading and increase the page score you can add in a JS and CSS optimization extension.
In this article we will list some of the best Magento JS and CSS Optimization extensions, both free and commercial ones.
Speedster Advanced by Fooman
Speedster Advanced helps optimize your store speed by combining, compressing and caching Javascript and CSS files. This is an advanced solution utilizing a smarter cache strategy with a built in theme optimizer.
It supports multi-store, automatic JS/CSS versioning and the use of CDN/cookie free domains.
- License: Free
- Open Source: Yes
Minify Js / Css / HTML by Extendware
This is a flexible and configurable extension that increases your website’s speed by optimizing js/css/html loading and by reducing page size, bandwidth, request count, and server load.
Minify Js / Css / HTML features intelligent compression and caching of JS and CSS files to ensure the fastest load for all pages.
It supports use of CDN, automatic JS/CSS versioning, minifies inline javascripts and non-standard javascripts as well as including advanced settings with options for deferring javascript load, different hostname urls and different minification algorithms.
- License: Commercial
- Open Source: Yes
Google Page Speed Optimizer by Amasty
This extension improves page load time and google page speed scores by automatic image optimization, css and js compression and optimization and moving js scripts to the footer.
It also includes advanced debug options and js/css path with timestamp so visitors will always see up-to-date content.
- License: Commercial
- Open Source: Yes
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