LiteSpeed Cache
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 ↗HOW IT WORKS
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.
WHAT IT DOES
- Server-level page cache on LiteSpeed / OpenLiteSpeed
- Minification, critical CSS, and deferred JS
- Image optimisation and WebP via QUIC.cloud
- Object caching and edge CDN integration
BEST FOR
- Sites hosted on LiteSpeed or OpenLiteSpeed servers
- Owners wanting a free, complete performance stack
- Hosts standardising on the LiteSpeed ecosystem
ALTERNATIVES TO LITESPEED CACHE
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 FAQ
What is LiteSpeed Cache?
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.
Do I need a LiteSpeed server to use it?
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.
Is LiteSpeed Cache really free?
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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