Nginx vs Apache: Which Web Server?
Nginx is an event-driven server and reverse proxy tuned for concurrency; Apache is the flexible, module-rich classic web server with per-directory config.
Nginx uses an asynchronous, event-driven model that handles many concurrent connections with low memory, making it a popular reverse proxy and static-file server. Apache uses a process/thread model with deep module support and .htaccess per-directory overrides, valued for flexibility and legacy compatibility. Nginx favors raw concurrency; Apache favors configurability and module breadth.
| Nginx | Apache | |
|---|---|---|
| Model | Event-driven (async) | Process/thread |
| Static files | Very fast | Fast |
| Config | Central, no .htaccess | .htaccess per-dir |
| Reverse proxy | Excellent | Good (mod_proxy) |
| Best for | High concurrency, proxy | Flexible modules, legacy |
Use case and performance
Nginx excels as a reverse proxy, load balancer, and static server under high concurrency. Apache excels where you need rich modules, dynamic per-directory config, or compatibility with apps that assume it. Many stacks put Nginx in front and proxy to application servers.
In CI and deploy
Both build into containers and ship via standard image pipelines. Smoke-test the config (nginx -t / apachectl configtest) in CI before deploy. Either deploys cleanly from managed runners, where faster runners shorten image build and config-test steps.
The verdict
High-concurrency reverse proxying, load balancing, and static serving: Nginx. Rich modules, per-directory config, or legacy app compatibility: Apache. A common pattern is Nginx as the edge proxy with Apache (or an app server) behind it.