LiteSpeed Cache for WordPress (LSCWP) is a performance-focused plugin offering server-level cache integration combined with advanced optimization tools. It supports WordPress Multisite and works flawlessly with plugins like WooCommerce, bbPress, and Yoast SEO. It is also compatible with ClassicPress.
Who Can Use LiteSpeed Cache?
The plugin provides both general and LiteSpeed-exclusive features.
General features are available to all users regardless of the web server (LiteSpeed, Apache, NGINX, etc.).
Exclusive features require OpenLiteSpeed, a commercial LiteSpeed server, or hosting powered by LiteSpeed or QUIC.cloud CDN.
General Features Available to All
- Free integration with QUIC.cloud CDN
- Object caching support: Memcached, LSMCD, or Redis
- Image optimization: Lossy and lossless formats
- Minification and combination of CSS, JavaScript, and HTML
- Asynchronous and deferred loading for CSS/JS
- Automatic Critical CSS generation
- Lazy-loading for images and iframes
- Responsive image placeholders
- Support for multiple CDNs
- Browser caching configuration
- Database cleaning and optimization
- Enhanced PageSpeed Insights and Core Web Vitals performance
- Support for OPcode cache
- HTTP/2 Push (if supported by the server)
- Cloudflare API integration
- Works with both single-site and multisite networks
- Easy settings import and export
- WebP and AVIF image format support
- Heartbeat API control
Note: Object cache services (like Redis) must be installed separately by the server provider.
LiteSpeed-Exclusive Features for Maximum Performance
- Full-page caching at the server level
- Automatic purge of cache based on events like post updates
- Private cache support for logged-in users
- REST API call caching
- Separate cache for mobile and desktop versions
- URL-specific cache purge scheduling
- Optimized caching for WooCommerce and bbPress
- WP-CLI command support
- API system for custom cache rules and integrations
- Granular cache exclusions via URI, category, tag, cookie, or user agent
- Smart crawler with SEO-friendly sitemap integration
- Multiple crawler support for dynamic cache variations
- HTTP/2, HTTP/3, and QUIC protocol support
- Edge Side Includes (ESI) for dynamic content blocks (widgets/shortcodes)
Note: ESI features are not available on OpenLiteSpeed.
Compatibility with Plugins and Themes
LiteSpeed Cache is compatible with most WordPress plugins and themes. Developers can utilize its public API to customize purge rules, cache logic, nonce handling, and more.
Privacy and Data Usage
LiteSpeed Cache temporarily stores cached copies of your website locally on the server. These files are not accessible to LiteSpeed staff unless required for support purposes. All cache files can be purged manually anytime.
When using online optimization services via QUIC.cloud (such as image or CSS optimization), only server and site data is transmitted, no user data is collected. QUIC.cloud retains this data for up to 7 days, after which it is permanently deleted.
Helpful Resources
- Join the LiteSpeed user community on Slack
- Explore complete plugin documentation
- Ask questions on the official support forum
- Contribute translations or join development on GitHub
