neoslab

Powered Minifier allow you to reduce your page load and increase your performance by minifying your HTML source along with all the CSS and JS code present in your markup.
<h3>License</h3>
Good news, this plugin is free for everyone! Since it’s released under the GPL, you can use it free of charge on your personal or commercial site.

Powered Minifier

Honestly it's the best minifier plugin for Wordpress 

Simply Excellent

Reduce your page load by minifying your HTML source along with all the CSS and JS code present in your markup.

hosting.io

Fast, easy to use cache for WordPress with option for up-to 3 separate CDN’s – for js, css & images from 3 providers. 
Added the ability to set and forget Database clean-ups on a scheduled timescale including removing revisions, clean-up transients, remove comment spam. Generally help keep the Database lean and tidy.
Built in support for <a href="https://gridpane.com/" rel="nofollow ugc">GridPane</a> based WordPress Installations with more functionality coming soon.
Added Automatic CDN support, Free for now, just enable in settings and your site will be automatically added to the grid.
We have many features planned and have an active development cycle which will be user focused based on feedback.
For extra performance we recommend <a href="https://wordpress.org/plugins/wp-disable/" rel="ugc">Featherweight</a>, our request cleanup plugin for reducing front-end weight and removing unused WordPress output.
Coming Soon – Dedicated WooCommerce caching for optimized e-commerce performance.
For hands-on performance work, see <a href="https://foliumstudio.co.uk" rel="nofollow ugc">Folium Studio</a>.

Cache by Folium

Easy to use Caching plugin with the added bonus of being able to add your CDN re-write rules

Simple, fast, effective

You don't have to be a rocket scientist to use this one and get results. Thank you for creating this!

I love how simple and effective this is

Fast, easy to use cache for WordPress with option for 3 separate CDN's. Optimize Database.

Powered Minifier vs Cache by Folium