13 WordPress Cache Plugins to Speed Up a Site

13 WordPress Cache Plugins to Speed Up a Site
25 min read

The speed of a website is crucial to its success, especially when these days user experience is everything. Studies have shown that slow-loading websites have a significant negative impact on user experience, bounce rates, and even conversion rates. In fact, according to Portent, ecommerce sites that load in 1-second experience 3x higher conversion rates than those that take longer.

But what is considered a fast-loading website? According to Backlinko, the average page speed of a first-page Google result is 1.65 seconds. This means that if your website takes longer to load, it may not even make it to the first page of search results, significantly impacting its visibility and potential traffic.

Unfortunately, the average page speed of a website is much slower, clocking in at 3.21 seconds, according to Pingdom. And as a result, sites that load in 1 second or less have a bounce rate of only 7%, while those that take longer than 3 seconds have a bounce rate of over 50%, according to Pingdom.

It's not just bounce rates that are impacted by slow page speeds. Unbounce reports that a whopping 82% of consumers say that slow-loading pages negatively impact their purchasing decisions. In other words, slow page speeds can lead to lost sales and revenue.

So what can you do to improve your website's speed? One effective solution is to use a caching plugin. By caching your website's content, you can significantly improve its loading speed, resulting in a better user experience and potentially higher conversion rates.

In fact, some plugins, like Cache Enabler and WP Rocket, can even improve page speed by as much as 25% with prefetching, as demonstrated by Facebook. In this article, we'll take a look at 14 of the best WordPress cache plugins available, each with its own unique features and benefits.

1. WP Rocket

13 WordPress Cache Plugins to Speed Up a Site

WP Rocket is an exceptional caching plugin that has taken the WordPress community by storm. With over 3,142,000 websites utilizing WP Rocket, it's no surprise that it has become the most popular premium caching plugin in the market. The plugin offers a wide array of features, including page caching, cache preloading, and GZIP compression, all of which combine to create an incredibly fast and smooth website experience for users.

But why do you need WP Rocket? For starters, a fast website is essential for creating a great first impression. Visitors are more likely to stick around if your site loads quickly, resulting in a higher conversion rate. And with Google's Core Web Vitals initiative, site speed is now a critical ranking factor, making WP Rocket an excellent tool for improving your SERP ranking.

Whether you're a blogger, a freelancer, or an agency, WP Rocket is the caching plugin that should be at the heart of any fast WordPress website. For bloggers, WP Rocket is an excellent tool for reducing bounce rates and keeping readers engaged with your content. Freelancers and agencies can take advantage of WP Rocket's speed optimization capabilities to build beautiful and high-performing websites for their clients.

And for eCommerce stores, WP Rocket is especially crucial. With 57% of consumers abandoning a site that takes longer than 3 seconds to load, it's critical to optimize your site's speed. WP Rocket's eCommerce-specific optimizations make it the ideal choice for boosting your online store's performance and reaching for the stars.

But don't just take our word for it. WP Rocket has received an excellent rating of 4.9 out of 5 based on 1850 reviews on Trustpilot, making it a reliable and trustworthy choice for website owners.

In conclusion, WP Rocket is an excellent caching plugin that can significantly improve your website's speed and performance. With its comprehensive range of features and excellent user reviews, WP Rocket is the ideal choice for website owners looking to skyrocket their PageSpeed score and create a memorable user experience. Get WP Rocket now and experience incredible results instantly.

2. WP Fastest Cache

13 WordPress Cache Plugins to Speed Up a Site

WP Fastest Cache is a reliable free caching plugin that has over 1 million active installations and is widely used by WordPress users worldwide. It is a simple and user-friendly caching plugin that offers excellent performance with features such as page caching, GZIP compression, and minification.

This plugin is built to improve website speed and performance, and it supports CDN integration and database cleanup. It is also rated 4.9 out of 5 stars, which shows how users love it. The plugin is developed by Emre Vona and is compatible with WordPress 3.3 or higher.

One of the notable features of WP Fastest Cache is its use of Mod_Rewrite, which is the fastest method used in the plugin to generate static html files. This caching plugin can also delete all cache files when a post or page is published, and an admin can delete all cached files from the options page. The plugin also supports SSL, CDN, and Cloudflare, and it has a preload cache feature that automatically creates the cache of all site pages.

WP Fastest Cache also has a premium version that offers extra features such as Mobile Cache, Widget Cache, Minify HTML Plus, Minify CSS Plus, Minify JS, Combine JS Plus, Defer Javascript, Optimize Images, Convert WebP, Database Cleanup, Google Fonts Async, and Lazy Load. With these features, you can optimize your website speed and performance for better user experience and search engine ranking.

In conclusion, WP Fastest Cache is an excellent caching plugin for WordPress users who want to improve their website speed and performance without breaking the bank. It is easy to use, offers great features, and has a premium version for users who want more advanced performance optimization.

3. LiteSpeed Cache

13 WordPress Cache Plugins to Speed Up a Site

LiteSpeed Cache for WordPress (LSCWP) is a powerful all-in-one site acceleration plugin with server-level caching and a wide range of optimization features. It is compatible with the most popular plugins, including WooCommerce, bbPress, and Yoast SEO, and supports WordPress Multisite.

With LiteSpeed Cache for WordPress, you can take advantage of general features such as object caching, image optimization, CSS/JS/HTML minification, and lazy loading of images and iframes. It also offers multiple CDN support, responsive image placeholders, and browser cache support.

LiteSpeed Cache for WordPress offers exclusive features, including automatic page caching to boost site performance, an automatic purge of related pages based on certain events, a private cache for logged-in users, and caching of WordPress REST API calls. It also supports scheduling purge for specified URLs, WooCommerce, and bbPress and provides WordPress CLI commands.

The plugin offers an easy-to-understand interface and support for web image format and Heartbeat control. It is compatible with OpenLiteSpeed, commercial LiteSpeed products, LiteSpeed-powered hosting, or QUIC. cloud CDN to utilize its exclusive features such as ESI (Edge Side Includes) support, HTTP/2 support, and HTTP/3 & QUIC support.

Overall, LiteSpeed Cache for WordPress is a powerful caching plugin that offers a range of features to improve your site's performance and speed.

4. WP-Optimize

13 WordPress Cache Plugins to Speed Up a Site

WP-Optimize is a caching plugin that not only caches your website but also optimizes your website's database. It supports page caching, GZIP compression, and database optimization. It also has features such as lazy loading and CDN integration. With over 1 million active installations, WP-Optimize is an easy-to-use plugin that is built around the world's fastest caching engine.

WP-Optimize also cleans up your WordPress database by removing unnecessary data such as post revisions and spam comments. It identifies which database tables have overhead and wasted space and provides options to reduce them. WP-Optimize can also automatically clean your database every week while respecting the "Keep last [selected number] weeks data" option.

WP-Optimize supports 32 languages and requires WordPress version 4.5 or higher, and PHP version 5.6 or higher. Its average rating is 4.8 out of 5 stars.

5. W3 Total Cache

13 WordPress Cache Plugins to Speed Up a Site

W3 Total Cache is a popular WordPress plugin that provides various optimization features, including page caching, object caching, and database caching. The plugin also offers minification and GZIP compression to enhance website speed. W3 Total Cache is trusted by millions of publishers, web developers, and web hosts worldwide and is the only web host agnostic Web Performance Optimization (WPO) framework for WordPress.

Some benefits of using W3 Total Cache include improved search engine result page rankings, at least 10x improvement in overall site performance, improved conversion rates, reduced page load time, and up to 80% bandwidth savings. The plugin is compatible with shared hosting, virtual private/dedicated servers, and dedicated servers/clusters. It also provides transparent content delivery network (CDN) management, mobile support, and accelerated mobile pages (AMP) support. W3 Total Cache also includes various security features to ensure website safety.

The plugin offers various caching methods, including local disk, Redis, Memcached, APC, APCu, eAccelerator, XCache, and WinCache. It also provides granular control for the minification of CSS, JavaScript, and HTML, as well as defer non-critical CSS and JavaScript for faster rendering of pages. Other features of W3 Total Cache include lazy loading of offscreen images, browser caching using cache control, future expire headers, and entity tags, JavaScript grouping by template, non-blocking JavaScript embedding, and caching statistics for performance insights.

W3 Total Cache is a free plugin and can be used with WordPress versions 5.3 or higher and PHP version 5.6 or higher. The plugin has been tested up to WordPress version 6.2 and supports 16 languages. It is a total performance solution for optimizing WordPress websites and can significantly improve core web vitals and the overall user experience for visitors without requiring changes to the WordPress host, theme, plugins, or content production workflow.

6. WP Super Cache

13 WordPress Cache Plugins to Speed Up a Site

WP Super Cache is a popular free caching plugin for WordPress, with over 2 million active installations. It generates static HTML files from your dynamic WordPress blog, which are then served to users who are not logged in, have not left a comment on your blog, or have not viewed a password-protected post. This caching technique offers faster website performance by serving lightweight HTML files instead of processing heavier and more expensive WordPress PHP scripts.

The plugin offers three caching methods, ranked by speed: Expert, Simple, and WP-Cache. The Expert method uses Apache mod_rewrite to serve "super cached" static HTML files, bypassing PHP and delivering extremely quick performance. The Simple method serves super cached files using PHP and is recommended for most users, as it's almost as fast as the Expert method and doesn't require modifying the .htaccess file. The WP-Cache method is the most flexible and slightly slower, used for caching pages for known users, URLs with parameters, and feeds. This method allows dynamic parts of a page to be cached too.

WP Super Cache supports CDN integration to speed up your website further and is compatible with WordPress 5.9 or higher and PHP 5.6 or higher. The plugin is available in 31 languages and has an average rating of 4.3 out of 5 stars, with the latest version (1.9.4) released four weeks ago. Users who are not comfortable with editing PHP files can use the Simple mode, which is easy to set up and very fast.

7. Hummingbird

13 WordPress Cache Plugins to Speed Up a Site

Hummingbird is a well-known WordPress plugin created by WPMU DEV that is designed to enhance website speed and performance. It provides various features such as page caching, file compression, and asset optimization. Hummingbird includes a built-in tool for minification, which removes redundant characters from the code to improve page load times.

Hummingbird is compatible with other WordPress plugins, including Multisite and WooCommerce, making it an ideal option for online stores and websites that require multiple domains. Additionally, Hummingbird offers a built-in performance report that analyzes your website's performance and provides actionable insights for improving its speed. You can set up automatic scans to ensure your website is always running at its best.

Hummingbird offers advanced controls over file compression, deferring CSS and JavaScript styles and scripts, minification for CSS and JS, Lazy Load integration, and world-class caching, all of which help to improve site speed and optimize performance. It also features Hummingbird Cache Suite, which provides effective browser caching for caching any site.

The plugin is created by the team behind Smush image optimization, which is now active on more than +1 million websites. Combining Hummingbird and Smush provides a complete speed boost to your website.

If your website receives speed recommendations from PageSpeed Insights, Hummingbird can help. It offers various optimization techniques such as enabling text compression, preloading key requests, avoiding enormous network payloads, and fixing JavaScript execution time. You can also minify CSS and JavaScript, eliminate render-blocking resources, and defer unused CSS. Additionally, Hummingbird provides a Lazy Load integration for offscreen images (Smush-free integration).

Hummingbird is regularly updated; the latest version is 3.4.5, updated four weeks ago. It has over 100,000 active installations and is compatible with WordPress 5.2 or higher. The plugin has been tested up to WordPress 6.1.1 and requires PHP version 5.6 or higher. It also supports 18 languages.

8. Cache Enabler

13 WordPress Cache Plugins to Speed Up a Site

Cache Enabler is a popular WordPress caching plugin developed by KeyCDN, designed to improve website performance by generating static HTML files of your website's pages and posts. The static files are then served to visitors instead of dynamically generating pages, which reduces server load and improves load times.

One of the unique features of Cache Enabler is its support for responsive images, which automatically optimizes images for different screen sizes, further improving load times. The plugin is easy to set up and configure, making it a great option for beginners.

Cache Enabler also offers a fast and efficient cache engine, automatic and manual cache clearing options, support for WP-CLI cache clearing, cache expiry, WebP support for image optimization, mobile support, Brotli and Gzip pre-compression support, and minification of HTML, including or excluding inline CSS and JavaScript.

The plugin also offers real-time cache size display in the WordPress dashboard, custom post type support, and 304 Not Modified support. It works perfectly with Autoptimize.

Cache Enabler has an average rating of 4.4 out of 5 stars and is regularly updated to stay compatible with the latest versions of WordPress. It supports up to 10 languages and is compatible with WordPress 5.1 or higher, and PHP version 5.6 or higher. It has been tested up to WordPress version 6.1.1 and has over 100,000 active installations.

9. Comet Cache

13 WordPress Cache Plugins to Speed Up a Site

Comet Cache is a popular caching plugin that is designed to improve website performance by offering client-side and server-side caching options. It features an automatic cache-clearing function that helps to ensure that your website always displays the most up-to-date content. In addition, Comet Cache also caches 404 requests, which helps to speed up your website's load time even for non-existent pages. It is compatible with popular WordPress plugins such as WooCommerce and bbPress.

Cache Enabler, created by KeyCDN, is a simple but effective WordPress caching plugin that helps improve site performance by creating static HTML files of frontend pages and storing them on the server's disk. This allows the static HTML files to be delivered instead of generating pages on the fly, which reduces the resource-intensive backend processes from the WordPress core, plugins, and database.

Cache Enabler features a fast and efficient cache engine, automatic smart cache clearing, manual cache clearing, and WP-CLI cache clearing. It also supports cache expiry, WebP image support, mobile support, Brotli and Gzip pre-compression support, and minification of HTML, including or excluding inline CSS and JavaScript. 

It has custom post-type support and works perfectly with Autoptimize. Cache Enabler captures page contents and saves them as static HTML files on the server's disk, which are then delivered without any database queries or on-the-fly compression, resulting in faster page load times.

Cache Enabler has over 100,000 active installations and supports 10 languages. It is compatible with WordPress 5.1 or higher, tested up to version 6.1.1, and requires PHP version 5.6 or higher. It has an average rating of 4.4 out of 5 stars.

10. NitroPack

13 WordPress Cache Plugins to Speed Up a Site

NitroPack is a premium caching plugin designed to enhance website performance by providing a wide range of features. It offers both client-side and server-side caching options, advanced image optimization, and lazy loading features.

One of the unique features of NitroPack is its ability to create a pre-cache of a website's pages, ensuring that it always runs at optimal speed. Additionally, NitroPack comes with a real-time performance dashboard that offers detailed insights into a website's performance.

NitroPack is easy to set up and configure, making it ideal for beginners. However, since it is a premium plugin that requires a subscription, it may not be suitable for those on a tight budget. NitroPack is created by NitroPack LLC.

NitroPack is an all-in-one performance optimization service that provides everything required for a lightning-fast website. It includes features like image optimization, code minification, caching, CDN, and lazy loading. NitroPack performs all optimizations in the cloud, making it a lightweight solution with lower CPU overhead compared to standard caching plugins.

NitroPack offers functionalities typically paid extra, including Cloudflare CDN, automatic image optimization, and cache warmup. It also provides other unique features like an incredibly simple setup, cache invalidation, critical CSS tailored to each unique layout, optimization of statically linked resources, and more.

NitroPack's configuration requires no technical knowledge, and users can select their desired optimization level from Standard, Medium, Strong, or Ludicrous. It is compatible with mobile, tablet, and desktop devices out of the box, supports scheduled posts, eCommerce, and multilingual sites, and has an advanced resource loading mechanism. 

NitroPack automatically manages its cache files when a user updates content on their site, and it provides options to exclude certain pages or resources from being cached or optimized.

NitroPack has over 100,000 active installations and is compatible with WordPress versions 4.7 or higher. It has been tested up to version 6.1.1 and requires PHP version 5.6 or higher. The plugin is available in multiple languages, and its average rating is 4.4 out of 5 stars. NitroPack integrates with Cloudflare, Sucuri, and generic reverse proxy systems like NGINX and Varnish, and no database connection is needed.

11. Perfmatters

13 WordPress Cache Plugins to Speed Up a Site

Perfmatters is a premium WordPress plugin designed to optimize website speed and performance. Developed by web performance experts, Perfmatters offers a range of features to help speed up your website, including lazy loading, script and style optimization, and disabling unnecessary WordPress features.

One of the key benefits of using Perfmatters is its ability to remove unnecessary metadata from your website's code. This can greatly improve load times and help to reduce bounce rates. In addition, Perfmatters is compatible with popular WordPress plugins such as WooCommerce and Gravity Forms.

Perfmatters is easy to set up and use, making it a great option for beginners. With just a few clicks, you can enable or disable specific features to improve the speed of your site. The plugin also includes a database optimization feature that can clean up your database by removing unnecessary revisions, auto-drafts, and spam comments.

Perfmatters offers different plans to suit your needs, including a personal plan for one site, a business plan for three sites, and an unlimited plan. While it is a premium plugin and requires a subscription, the investment can be worth it for those looking to significantly improve their website's performance.

12. Smush

13 WordPress Cache Plugins to Speed Up a Site

Smush is a WordPress plugin that optimizes website images without compromising their quality. The plugin compresses, resizes, and optimizes images, which can significantly enhance website speed and performance.

Smush uses advanced algorithms for compression, ensuring that image quality is not affected. The plugin also offers features like lazy loading and WebP support, which further improves website performance. Smush is easy to use and configure, with a user-friendly dashboard that provides a detailed overview of image optimization status. The plugin offers a range of tools that assist users in optimizing images, and it comes with a free version, as well as a premium version that offers additional features.

Smush has been tested and benchmarked as the number one plugin for image optimization and compression for WordPress, and it has won awards for its speed and quality. Smush has a range of features that includes lossless compression, lazy loading, bulk smush, incorrect image size detection, directory smush, automated optimization, and more. The plugin is multisite compatible and supports various image formats, including PNG, JPEG, and GIF files. Smush also offers conversion to WebP format in its pro version.

With over 1 million active installations, Smush is a popular image optimization plugin for WordPress, compatible with WordPress 5.3 or higher, tested up to 6.2, and supports PHP version 5.6 or higher. The plugin is also available for support in 40 languages, and it has an average rating of 4.8 out of 5 stars.

13. LazyLoad by WP Rocket

13 WordPress Cache Plugins to Speed Up a Site

LazyLoad by WP Rocket is a powerful plugin designed to enhance the performance and speed of your WordPress website. Its primary function is to lazy load your images and videos by loading them only when they are required, rather than all at once. By doing so, the initial load time of your website can be significantly reduced, which can lead to a better user experience and improved website performance.

This plugin is created by WP Rocket and is fully compatible with all of the other caching plugins available for WordPress. It is the best free lazy load plugin for WordPress as it optimizes images for Google PageSpeed and improves your Lighthouse performance score, First Input Delay (Core Web Vital), Total Blocking Time (Lighthouse metric), and Largest Contentful Paint score (another Core Web Vital).

LazyLoad can lazy load images in post content or widget text, as well as thumbnails, avatars, and smilies. It also takes care of iframe lazy load, where Youtube iframes can be replaced with a preview thumbnail to further speed up the loading time of your website. The plugin is lightweight, weighing less than 10KB, and does not use any JavaScript library like jQuery.

This plugin is compatible with WordPress version 4.7 or higher and PHP version 5.6 or higher. It also supports up to 13 different languages. With over 100,000 active installations, the LazyLoad plugin has an average rating of 4.2 out of 5 stars on WordPress.

In conclusion, if you're looking for a plugin to optimize your website's performance and speed, LazyLoad by WP Rocket is an excellent choice. Its lazy loading feature is crucial for improving the performance of your website and can significantly reduce the initial load time of your site.


In conclusion, the speed and performance of your WordPress website can be greatly improved by using caching plugins. With so many options available, you can choose the plugin that suits your specific needs, whether you are looking for a lightweight or comprehensive solution.

If you setup these plugins properly then you can speed up your WordPress website in just a few minutes. However, for those who may not have the technical knowledge to set up these plugins, there are several WordPress speed optimization solutions available. These can include hiring a professional web developer or using managed hosting services that offer optimization features. It is important to prioritize website speed and performance to provide a better user experience and improve search engine rankings.

Raj Kishore 2
Hi, I am Raj Kishore a Digital Marketing Professional from India at VOCSO Technologies good in SEO, SMO, Content Marketing, Google Adwords, Google Analytics, Go...
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