LiteSpeed vs. Nginx vs. Apache: Comparing Web Server Software

LiteSpeed, Nginx and Apache are web server programs: they receive the request coming from a visitor's browser and send back the page, image or file. So how do you weigh LiteSpeed vs. Nginx vs. Apache? Apache stands out for its flexible configuration and per-directory .htaccess files, Nginx for its event-driven architecture and reverse proxy capabilities, and LiteSpeed for its Apache compatibility and server-level caching. No single one is "the best"; instead, the right choice depends on how you built your site, your hosting environment and your team's experience.

What is web server software?

The word "server" has two meanings: the physical or virtual machine (see What is a VPS?) and the software running on that machine that handles incoming requests. In this post we cover the second meaning: web server software.

When a visitor opens your site, the browser sends an HTTP request to the server. The web server software receives that request and makes these decisions:

• Is the request for a static file (an image, CSS, JavaScript)? If so, it sends it straight from disk.
• Is it a dynamic page (for example, WordPress)? If so, it passes the request to PHP and sends the result to the visitor.
• Are there rules for redirects, access restrictions, compression or HTTPS? It applies them.

On shared hosting, the provider usually chooses and manages this software. On a VPS or your own server, by contrast, the choice is yours.

Apache HTTP Server

Apache HTTP Server is an open-source project of the Apache Software Foundation. The project describes itself as a fast, reliable and extensible web server. It also notes that more than 100 modules can extend its functionality.

Architecture: Apache determines how it handles requests through modules called MPMs (Multi-Processing Modules). On Unix-like systems, the options are prefork, worker and event. According to the Apache documentation, on modern operating systems that support threads and safe polling (epoll/kqueue), the default choice is almost always the event MPM.

.htaccess: One of Apache's best-known features is its per-directory configuration file, .htaccess. Site owners who don't have access to the server's main configuration can use this file to define redirects, access restrictions and URL rewrite rules. WordPress also writes its permalink rules to this file. That is why Apache was the standard in the shared hosting world for a long time.

However, this flexibility comes at a cost. The Apache documentation is explicit: when you allow .htaccess files, the server looks for and reads them in the relevant directories on every request. As a result, performance suffers even when no such file exists. The documentation recommends putting settings in the main configuration if you have access to it.

Who is it for? People who want broad module support, extensive documentation and flexible management through .htaccess. It is still very common in shared hosting environments and older applications.

Nginx

Nginx ("engine x") is open-source software that Igor Sysoev wrote; it carries the 2-clause BSD license. Its official site describes Nginx as an HTTP web server, reverse proxy server, content cache, load balancer, TCP/UDP proxy server and mail proxy server.

Architecture: Nginx runs with one master process and several worker processes. Its event-driven design, which uses operating system event notification mechanisms such as epoll and kqueue, lets it handle a large number of concurrent connections with few resources. That is why teams often choose it for high-traffic sites and for serving static files.

As a reverse proxy: Nginx often sits in front of another application. For example, in front of a Node.js, Python or PHP application it terminates HTTPS, serves static files itself and passes dynamic requests to the application behind it. On some servers, admins also place Nginx in front of Apache as a reverse proxy.

No .htaccess: According to WordPress's official documentation, Nginx has no per-directory configuration file like Apache's .htaccess. As a result, WordPress can't generate its own rewrite rules; administrators have to write the rules into the server configuration. That is an advantage for performance; on the management side, however, it means you need server access.

Caching and protocols: You can use Nginx's fastcgi_cache feature to cache PHP-generated pages at the server level. QUIC and HTTP/3 support has been available since Nginx 1.25.0.

Who is it for? Projects with a team that can manage the server configuration, projects that need high concurrent traffic handling, reverse proxying or load balancing, and modern application architectures.

LiteSpeed Web Server and OpenLiteSpeed

LiteSpeed Web Server is a commercial product of LiteSpeed Technologies. The vendor describes it not as a proxy placed in front of Apache but as a drop-in replacement for Apache.

Apache compatibility: LiteSpeed Enterprise can read Apache configuration files directly, supports .htaccess files and works with Apache-based control panels such as cPanel, Plesk and DirectAdmin. As a result, it is easier for shared hosting companies to switch server software without changing their existing customer sites.

Architecture: Similarly to Nginx, it uses an event-driven architecture.

Caching: LiteSpeed's best-known feature is its server-level caching engine, LSCache. On the WordPress side, the LiteSpeed Cache plugin manages this engine: page caching, the object cache connection (Redis, Memcached), browser caching and page optimization settings are all handled in one place. We explained the caching layers in detail in our post What Is Website Caching?.

Protocols: The vendor also states that it supports HTTP/2, QUIC and HTTP/3.

OpenLiteSpeed: This is the open-source, GPLv3-licensed edition of LiteSpeed. The same team develops it, and it includes the LSCache module. However, it has one important difference from the Enterprise edition: according to the OpenLiteSpeed documentation, it supports only Apache's mod_rewrite rules from .htaccess files and ignores other directives. In addition, you must restart the server for changes to rewrite rules to take effect. This difference matters for sites that rely heavily on .htaccess.

Who is it for? WordPress-focused sites and hosting companies that want Apache compatibility and the benefits of server-level caching. For the Enterprise edition, check the license terms and cost with the vendor.

LiteSpeed vs. Nginx vs. Apache compared

The table deliberately has no "speed" column. Many conflicting benchmarks exist for all three programs, and the results vary widely depending on the test environment, the configuration and whether caching is enabled. In the end, the only measurement that means anything is one you make on your own site, with your real traffic.

Which one should you choose?

In practice, most businesses don't make this decision directly; they make it indirectly when choosing a hosting provider. Still, these questions can guide you:

• Are you on shared hosting? The choice belongs to your provider. What matters is that your site makes proper use of that software's caching and configuration options. Our post What is web hosting? can help here.
• Are you running a WordPress-focused site? On LiteSpeed servers, the LiteSpeed Cache plugin makes it easy to manage server-level caching from WordPress. With Nginx or Apache, a well-configured cache can do a similar job.
• Do you have an application that depends on .htaccess? Apache or LiteSpeed Enterprise makes the move easier. Moving to Nginx requires translating the rules into the server configuration.
• Is your application architecture modern, with many components? Nginx as a reverse proxy in front of Node.js or another application server is a common solution.
• Who will manage the server? In general, the software your team has experience with is the safer choice. A well-managed Apache server gives better results than a poorly configured Nginx or LiteSpeed server.

Common mistakes

• Changing the software but not setting up caching: After all, switching web server software may not make a big difference on its own. On WordPress sites, the real gain usually comes from page caching.
• Forgetting .htaccess rules during a migration: When you move from Apache to Nginx, you can lose redirects and security rules. List all the rules before you migrate.
• Skipping the restart on OpenLiteSpeed: If you changed rewrite rules in .htaccess but the change isn't working, the server may need a restart.
• Treating speed test results as the only measure: Test in real use whether optimization settings break menus or forms.

Our experience

This site (artsution.com.tr) runs on WordPress, Hello Elementor and Elementor Pro on a LiteSpeed server, and we use the LiteSpeed Cache plugin for caching and optimization. Our experience has shown that how you configure the features matters as much as the features the server software offers. For example, we keep LiteSpeed Cache's "Guest Optimization" feature turned off, because it can delay JavaScript until the first interaction and break menus and forms. We improved speed through controlled steps such as CSS combining, locally hosted fonts and small font subsets for Turkish characters. We move sites from the local development environment to the live server with All-in-One WP Migration and check the caching and permalink settings again after each migration.

Frequently asked questions

Conclusion

Apache, Nginx and LiteSpeed are mature programs that each serve different needs well. Apache stands out for its flexibility and ubiquity, Nginx for high concurrency and reverse proxy capabilities, and LiteSpeed for Apache compatibility and server-level caching. Therefore, don't base your choice on "which one is faster?" alone; base it on how you built your site, your hosting environment and who will maintain it.

If you'd like to review your site's server and caching settings together, take a look at our WordPress development and web design services, or get in touch with us.