Normally the site always loads javascript files first, and then the HTML/CSS file. The heavy size of javascript files will slow down the site speed, causing bad experience for customers.
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To solve this problem, the Magento 2 Defer Javascript Extension allows loading all HTML and CSS first before loading Javascript files and puts all javascript files to the bottom of the page. In other words, this extension will delay loading javascript to enhance Magento 2 website performance, provide a more comfortable shopping experience for customers. Let’s see the key feature and how beneficial this module is to webstore:
Defer parsing of JavaScript to load faster: bring Javascript files to the end of page to load after all HTML and CSS.
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Defer Iframes loading effectively
Excellent functions inherited from the first version on Magento 1, well compatible with Magento 2
Easily exclude controllers or wished paths
Simple backend UI
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Provide easy configuration
Let’s optimize your page speed with Defer Javascript

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