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Last updated: 2026-03-16

What is LiteSpeed?

Definition

A high-performance commercial web server that serves websites significantly faster than Apache, with built-in caching and full .htaccess compatibility.

Why It Matters

  • LiteSpeed can handle the same traffic as Apache while using far fewer server resources, meaning your site stays fast even during traffic spikes.
  • The built-in LiteSpeed Cache (LSCache) is one of the most powerful caching solutions available—particularly for WordPress, where the LSCache plugin consistently tops performance benchmarks.
  • LiteSpeed is fully compatible with Apache's .htaccess files, making migration seamless—your existing rules work without modification.
  • For UK hosting buyers, knowing whether a host uses LiteSpeed vs Apache can be a deciding factor, as LiteSpeed hosts typically deliver 2-5x better performance on similar hardware.

How It Works

LiteSpeed Web Server replaces Apache as the software that handles incoming web requests. It reads the same Apache configuration files and .htaccess rules but processes them using an event-driven architecture instead of Apache's process-based model. This means LiteSpeed handles thousands of simultaneous connections with minimal RAM usage. Its built-in cache (LSCache) stores pre-generated versions of pages in server memory, serving them almost instantly without running PHP or querying databases. For WordPress, the LiteSpeed Cache plugin communicates directly with the server for full-page caching, object caching, image optimisation, CSS/JS minification, and CDN integration—all from a single plugin. LiteSpeed also includes built-in DDoS protection and HTTP/3 QUIC support for faster, more secure connections.

Pros & Cons

Advantages

  • Up to 6x faster than Apache for static content and 5x for PHP processing
  • Built-in page caching eliminates the need for separate caching plugins
  • Drop-in Apache replacement—reads .htaccess and Apache configs without changes
  • Significantly lower server resource usage means better performance on shared hosting
  • Native HTTP/3 QUIC support for faster connections on modern browsers
  • Free WordPress plugin (LiteSpeed Cache) is consistently ranked #1 for performance

Disadvantages

  • Commercial software—hosts must pay for licences, potentially increasing plan costs
  • Less community documentation compared to Apache or Nginx
  • Some advanced Apache modules may not have direct LiteSpeed equivalents
  • Not all hosts offer LiteSpeed—you may have limited provider choices
  • OpenLiteSpeed (free version) lacks some features of the commercial edition

Common Misconceptions

  • !LiteSpeed is just another version of Apache (It is a completely different web server with a fundamentally more efficient architecture—it just reads Apache config files)
  • !You need to reconfigure everything when switching to LiteSpeed (LiteSpeed reads httpd.conf and .htaccess natively—migration usually requires zero changes)
  • !LiteSpeed Cache plugin works with any server (Full LSCache power requires a LiteSpeed server—the plugin offers limited features on Apache/Nginx)

Do You Need LiteSpeed? Checklist

Consider litespeed if any of these apply to you:

  • Check if your host offers LiteSpeed Web Server (not just Apache or Nginx)
  • Install the LiteSpeed Cache plugin if using WordPress on a LiteSpeed host
  • Enable full-page caching and object caching in LSCache settings
  • Activate image optimisation (WebP conversion) through the LSCache plugin
  • Enable HTTP/3 QUIC if your host supports it for faster connections
  • Compare benchmarks before and after LiteSpeed migration to quantify improvements

Recommended Hosts for LiteSpeed

WPX

LiteSpeed servers with custom XDN CDN for managed WordPress and WooCommerce

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HawkHost

LiteSpeed Enterprise on all shared plans with London data centre

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Hosting.com

LiteSpeed on Turbo plans delivering up to 20x faster page loads

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IONOS

LiteSpeed available on performance hosting plans with UK data centres

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Flashcloud

LiteSpeed servers with NVMe SSD and multilevel caching on all shared and WordPress plans

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Web Hosting Buzz

LiteSpeed web servers with CloudLinux isolation on all shared hosting plans

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Frequently Asked Questions

What is the difference between LiteSpeed and Nginx?
Both are high-performance web servers faster than Apache. LiteSpeed is commercial with built-in Apache compatibility—it reads .htaccess files directly. Nginx requires separate configuration and doesn't support .htaccess. LiteSpeed also includes built-in caching, while Nginx typically needs separate caching solutions like FastCGI Cache or Varnish.
Is LiteSpeed free?
There are two versions: OpenLiteSpeed is free and open-source but lacks some features (no .htaccess support, limited caching). LiteSpeed Enterprise is the full commercial version with complete Apache compatibility—hosts pay per-server licences. As a hosting customer, the cost is built into your plan price.
How much faster is LiteSpeed than Apache?
In benchmarks, LiteSpeed typically serves static content 6x faster and processes PHP 5x faster than Apache. For WordPress specifically, LiteSpeed with LSCache can reduce page load times from 2-3 seconds to under 500ms. Real-world improvements depend on your site's specific configuration.
Does LiteSpeed work with WordPress?
Exceptionally well. The free LiteSpeed Cache for WordPress plugin is the most comprehensive performance plugin available—combining full-page caching, object caching, image optimisation, CSS/JS minification, database optimisation, and CDN integration. It consistently outperforms WP Super Cache and W3 Total Cache in benchmarks.
Can I use LiteSpeed and a CDN together?
Absolutely, and it's recommended. LiteSpeed handles server-side caching and optimisation, while a CDN (like Cloudflare) caches content at edge locations globally. The LSCache plugin has built-in CDN integration, making setup straightforward. Together, they provide both fast origin response and global content delivery.

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