LiteSpeed Cache (LSCWP) is a free WordPress plugin that, on a LiteSpeed or OpenLiteSpeed server, uses server-level caching rather than PHP-based caching. That server integration makes it one of the fastest caching options available, and it bundles a complete optimisation suite: minification, critical CSS, lazy loading, and deferred JavaScript.
Visit LiteSpeed Cache ↗It connects to QUIC.cloud, LiteSpeed's CDN and image-optimisation service, for image compression, WebP conversion, and edge caching, with a free monthly allowance and metered paid usage beyond it. On the right server it effectively replaces a premium caching plugin at no cost.
The catch is the server requirement: the server-level cache only works on LiteSpeed/OpenLiteSpeed. On Apache or NGINX the plugin still works but loses its biggest advantage, so on those stacks WP Rocket or FlyingPress are usually the better fit.
Category context: Stores rendered pages and assets so repeat requests skip PHP and the database. The single biggest WordPress speed lever.
The most popular premium WordPress caching plugin, tuned to improve Core Web Vitals out of the box.
Compare →The CDN and edge-caching network built for LiteSpeed Cache, adding image optimisation and full-page edge caching.
Compare →A caching and optimisation plugin built by a Core Web Vitals specialist, favoured for real-world load speed.
Compare →LiteSpeed Cache is a free WordPress plugin that provides server-level page caching on LiteSpeed and OpenLiteSpeed web servers, plus a full optimisation suite (minification, critical CSS, deferred JS, image optimisation via QUIC.cloud). On a LiteSpeed server it is one of the fastest caching options and is free.
The plugin runs anywhere, but its server-level cache, its biggest performance advantage, only works on LiteSpeed or OpenLiteSpeed servers. On Apache or NGINX you lose that benefit, so on those stacks a plugin like WP Rocket or FlyingPress is usually a better choice.
Yes, the plugin is free and open source. The optional QUIC.cloud services it connects to (image optimisation, CDN, edge caching) have a free monthly allowance and then meter usage, so heavy use of those add-ons can incur cost, but the core caching is free.
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