When adding media on the post screen, automatically add decoding = "async" to the img tag
Plugin Tag: async
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Head.WP
Head.js is a script to asynchronously load and manage dependencies of javascript and CSS assets.
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Asynchronous Emails
This WordPress plugin allows you to send emails asynchronously using cron jobs, instead of the default way of sending emails immediately upon sending.
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LH CSS Lazy Load
Javascript has a HTML based method for deferring and asynchronously loading files, namely script Defer and script Async. Unfortunately these HTML solu …
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Lazy Widget Loader
Lazy Widget Loader provides lazy loading for widgets to improve page loading. Use on slow widgets with content from Facebook, Twitter, AdSense …
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Asynchronous Javascript
Improve page load performance by asynchronously loading javascript using head.js
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Speed Up – Optimize CSS Delivery
This plugin load the stylesheets asynchronously and improve page load times.
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Async JS and CSS
Converts render-blocking CSS and JS files into NON-render-blocking, improving performance of web page.
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Async JavaScript
Async Javascript lets you add 'async' or 'defer' attribute to scripts to exclude to help increase the performance of your WordPress website.