I recommend running your WordPress site through GTmetrix (check the Page Speed and YSlow tabs) or another speed testing tool to use as a benchmark. Once you’ve installed each plugin, retest your GTmetrix scores to see how it affects your page load time and scores. Most plugins have at least a 4.5 star rating and rest assured, I have done my research and testing.
WP Rocket was rated the #1 cache plugin in this Facebook poll and is what I use on my site. It’s a $39 premium plugin but is well worth it if site speed important. I even did my own test on WP Rocket vs. WP Fastest Cache. vs. W3 Total Cache, and WP Rocket gave me the best load times. Note you should only be using 1 cache plugin at a time, however it’s best to try out at least 2-3 (the ones I listed) to see which one gives you the best results/scores in Pingdom/GTmetrix.
It’s the highest rated FREE cache plugin and is super easy to configure. My WP Fastest Cache tutorial shows you how to configure the tabs and integrate it with Cloudflare + StackPath but here is the first tab (below). Unlike WP Rocket, this plugin doesn’t have an option for lazyloading images/videos, database cleanup, and other options… so you will need to use WP-Optimize and the Lazy Load For Videos plugins if you want those features too (recommended).
Hummingbird zips through your site and finds new ways to boost page speed with fine-tuned controls over file compression, minification and full-page, browser and Gravatar caching. Load your pages quicker and score higher on Google PageSpeed Insights with Hummingbird site optimization.
Resize, optimize, optimise and compress all of your images with the incredibly powerful and 100% free WordPress image smusher, brought to you by the superteam at WPMU DEV!
(You say optimise I say optimize…let’s call the whole thing off 😉 )
Smush has been benchmarked and tested number one for speed and quality and is the award-winning, back-to-back proven crowd favorite image optimization plugin for WordPress.
Now with image resizing! Set a max width and height and large images will scale down as they are being compressed.
Our servers do all the heavy lifting. Strip hidden bulky information from your images and reduce file size without losing quality.
Large image files may be slowing down your site without you even knowing it. WP Smush uses WPMU DEV’s super servers to quickly smush every single one of your images and cuts all the unnecessary data without slowing down your site.
Smush meticulously scans every image you upload – or have already added to your site – cuts all the unnecessary data and scales it for you before adding it to your media library.