LiteSpeed vs Nginx vs Apache

Apache, Nginx and LiteSpeed serve the large majority of the web between them. They all deliver HTTP well, but their architecture and configuration styles differ enough to affect performance, caching and how much fiddling you do. Here is a fair look at the trade-offs.

Architecture

The core difference is how each handles many simultaneous connections. Apache traditionally used a process- or thread-per-connection model (its prefork and worker MPMs), which is simple and robust but uses more memory under heavy concurrency. Its newer event MPM narrows the gap considerably.

Nginx was built around an asynchronous, event-driven loop where a small number of worker processes juggle thousands of connections without a thread each. This keeps memory flat under load and is why Nginx is so often chosen as a reverse proxy and static-file server. LiteSpeed uses a similar event-driven design while remaining drop-in compatible with much of Apache’s configuration.

Performance

For static files and high concurrency, the event-driven servers — Nginx and LiteSpeed — generally use less memory and scale more predictably than a thread-per-connection Apache setup. In practice, though, real-world speed is dominated by your application, database, caching and network far more than by the raw server. A well-tuned Apache can outperform a poorly configured Nginx, and vice versa. Treat benchmark headlines with caution and measure your own stack with a response-time test.

Caching

Caching is where LiteSpeed markets a clear edge: LSCache is a built-in, full-page cache with tight integrations for popular CMS platforms. Nginx offers proxy_cache and fastcgi_cache, which are powerful but require manual configuration. Apache can cache via mod_cache or lean on an external layer. Many sites, whatever the server, put a CDN in front for edge caching regardless.

Configuration and .htaccess

How you configure each differs in feel. Apache reads distributed .htaccess files, letting you change rules per directory without touching the main config or restarting — convenient on shared hosting, but it costs a small performance penalty because the server checks for these files on each request. Nginx has no .htaccess equivalent; all rules live in central config and apply after a reload, which is faster but means you need server-level access to change them. LiteSpeed reads Apache-style .htaccess, easing migration from Apache while keeping its event-driven core.

	Apache	Nginx	LiteSpeed
Model	Process/thread, plus event MPM	Event-driven	Event-driven
Static-file efficiency	Good	Excellent	Excellent
.htaccess support	Yes	No	Yes
Built-in full-page cache	Via modules	Manual config	Yes (LSCache)
Licensing	Open source	Open source	Open-source & commercial editions

A note on config style

The same rule looks different on each. An Apache .htaccess rewrite lives beside your files:

<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{HTTPS} off
    RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
</IfModule>

The Nginx equivalent lives in the central server block:

server {
    listen 80;
    server_name example.com;
    return 301 https://$host$request_uri;
}

See the full walkthrough in our HTTP-to-HTTPS redirect guide.

Whichever you run, confirm the result: scan your site to check TLS, security headers and HTTP version are configured correctly.

Frequently asked questions

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