Aysnc JavaScript removes the render-blocking JavaScript so that above-the-fold content loads without any hindrance.

Highlights

• Make web page load faster for better search ranking
• Improve page score in Google PageSpeed test or other testing tool
• Add async or defer attribute as per your requirement

Keep your WordPress cleaned with WP Sweep plugin. You can clean up revisions, deleted comments, duplicate meta content, spammed comments and much more.

It uses delete functions

WP Sweep is compatible with all the popular plugins expect Meta Slider.

Optimize your WordPress database automatically to makes it perform at optimal performance.

Highlights

• Removes unnecessary data
• Complete control over the area of optimization
• Automate optimization by scheduling it weekly
• Take a backup prior to optimization so if something goes wrong, you can roll-back
• Shows potential savings and database statistics

Hyper Cache has been created to maximize your loading speed. This works as a catalyst if you have set up your website on shared hosting.

Some of its key features are:

• Non-complex configurations
• Works with all types of themes
• Auto-cleans disk space used for caching

In order to increase your traffic, a reader should be able to find you with ease and access your website within seconds. The best way to do this online is by using caches.

Cache Enabler creates static files to serve the request faster and reduce the server load. It does HTML and inline JavaScript minification.

Highlights

• Fast disk cache engine
• Automatic or manual cache purge
• CPT and multisite supported

A little help goes a long way and that is what this tool is all about. WP Performance Score Booster does exactly what the name suggests.

It is able to help you enhance the final performance of your page. This is achieved by using an efficient caching system.

Highlights

• Removes query strings
• Enable GZIP compression
• Leverage browser caching

Make your web page load faster with Autoptimize.

Its an open-source plugin and works with other caching and popular plugin.

Some of its key features are

• Able to minify, aggregate and cache scripts
• Default CSS injection in the page head
• Defers scripts to footer
• Minifies HTML

Speed up and declutter your website in a jiffy with very little effort

WP Rocket helps you in speeding up your website by enabling caching. It’s a super user-friendly plugin for WordPress that can be installed and used by literally any individual without any technical skills. It launches instantly as soon as you hit the “Activate” button, with no complex settings or waiting time.

With that being said, while it being easy for everybody, there are also deep settings and options which you can choose to configure in order to achieve maximum results.

It uses page caching to speed up your loading time and cache preloading to improve the indexing of your website on search engines. Along with that, you can also make use of their static file compression that decreases the weight of your code with the help of minification.

Since images play a huge part in slowing down your website if not optimized properly, WP Rocket has a feature that loads your images only when the visitors scroll down. This prevents unnecessary loading and jamming through media files.

It’s also important to mention that this plugin is totally developer-friendly. It has a bunch of hooks that’ll allow developers to make advanced customizations.

WP Fastest Cache (WPFC) plugin optimizes your WP site by converting dynamic content to static files.

Highlights

• Using mod_rewrite to serve the content
• You have an option to turn off the caching for mobile devices, logged-in users, users-agents
• Automatic cache purge when page or post is updated
• Refresh cache periodically

WPFC is installed on more than 700,00 sites.

A veteran among the caching plugins and still one of the most preferred in the market

Quickly improve your SEO and user experience by installing the W3 Total Cache plugin on your WordPress website. It utilizes a combination of techniques to help speed up things, such as:

• Page caching
• Browser caching
• Fragment caching
• Database caching
• Object caching
• CDN
• Minification
• Lazy loading of media

Apart from reduced page load time, you’ll potentially see a major improvement in search engine rankings and overall site performance. It also improves server performance and helps you drastically cut down on bandwidth usage, thanks to the minification of codes.

This might sound irrational but W3 Total Cache can help you up to your conversion rate as well. All of their features directly feed up your search engine presence and that logically helps you get more visitors. So, it’s like an arrow that hits several targets.

I’d recommend jumping onto their free version and take it ahead from there if it fits your requirements. Nevertheless, you’re sure to be impressed by what it has to offer. And it’s definitely more than what’s mentioned here.