LiteSpeed vs Apache vs NGINX: Web Server Performance Compared

Your underlying web server software handles every incoming HTTP request, SSL handshake, and PHP compilation.

1. Apache HTTPD: The Traditional Workhorse

Apache uses a process-driven model where each client connection spawns a separate worker process. While flexible with .htaccess compatibility, it exhibits high memory consumption under heavy concurrent traffic.

2. NGINX: High-Performance Reverse Proxy

NGINX introduced an asynchronous, event-driven architecture that serves thousands of static requests concurrently with minimal RAM usage. However, configuring URL rewrites requires server reload without native .htaccess support.

3. LiteSpeed Web Server (LSWS): The Modern King of PHP

LiteSpeed combines event-driven architecture with native Apache .htaccess drop-in replacement. Its proprietary server-level caching engine (LSCache) delivers up to 4x faster WordPress execution compared to standard NGINX.