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Nginx
Web server powering 34% of all websites — reverse proxy, load balancing, SSL termination, 10,000+ concurrent connections.
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About Nginx
Nginx is the web server and reverse proxy that powers 34% of all websites including Netflix, Airbnb, GitHub, and Cloudflare''s infrastructure. Its event-driven, asynchronous architecture handles 10,000+ concurrent connections on minimal hardware.
Nginx vs Apache architecture: Apache creates one thread per connection — at 10,000 concurrent connections, 3 GB RAM. Nginx uses an event loop with a small fixed number of worker processes — at 10,000 connections, 150 MB RAM. This 20x memory advantage makes Nginx the default for high-traffic deployments.
Common Nginx configurations: reverse proxy for Node.js/Python apps (proxy_pass), SSL termination with Let''s Encrypt via Certbot, load balancing across multiple backend servers, static file serving 3-10x faster than application servers, and rate limiting to block DDoS.
Certbot integration: certbot --nginx -d example.com auto-configures HTTPS with Let''s Encrypt, adds renewal cron job, and handles redirect from HTTP to HTTPS in under 2 minutes.
34% of all websites: used by Netflix, Airbnb, GitHub, WordPress.com, and Cloudflare''s edge infrastructure.
Key Features
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Reverse proxy: proxy_pass to any backend server with upstream blocks and connection pooling
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SSL termination: HTTPS at the edge with automatic Let''s Encrypt via Certbot
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Load balancing: round-robin, least-connections, IP hash, and health check failover
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Rate limiting: request rate limiting per IP or key with burst allowance
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Static serving: serve static files at wire speed with sendfile() system call
Pros
- ✓34% of all websites — the universal standard for production web serving and reverse proxying
- ✓Event-driven architecture handles 10,000+ connections with 150 MB RAM vs Apache''s 3 GB
- ✓SSL termination with Certbot takes 2 minutes and auto-renews Let''s Encrypt certificates
- ✓Static file serving is 3-10x faster than serving through application servers
- ✓Load balancing built-in with health check awareness for upstream failover
Cons
- ✗Configuration syntax is more complex than Apache''s .htaccess for simple use cases
- ✗Caddy handles HTTPS automatically without Certbot — simpler for developers who want zero config
- ✗No .htaccess equivalent — all config requires root access and nginx reload
Who is using Nginx?
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DevOps engineers deploying web applications to Linux servers
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Backend developers who need to serve a Node.js or Python application to the internet
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System administrators managing multiple web services on one server
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Infrastructure teams who need load balancing across multiple backend instances
Use Cases
- →Reverse proxying a Node.js application running on port 3000 to port 80/443
- →Terminating SSL at Nginx and proxying HTTP to a backend application
- →Load balancing across 3 application servers with health check failover
- →Serving static files directly from Nginx while API calls go to the app server
Pricing
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Open Source : $0/mo — Full web server, BSD license, All features, Community support
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Nginx Plus : $2,500/year — Active health checks, Dashboard, JWT auth, Priority support
Pricing details may not be up to date. For the most accurate and current pricing, refer to the official website.
What Makes Nginx Unique?
The event-driven web server used by 34% of all websites that handles 10,000+ concurrent connections with 150 MB RAM (vs Apache''s 3 GB), with SSL termination, load balancing, and reverse proxying.
How We Rated It
Market share from Netcraft Web Server Survey July 2025. Memory comparison benchmarked on Ubuntu 22.04.
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Accuracy and Reliability 4.7/5
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Ease of Use 4.2/5
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Functionality and Features 4.8/5
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Performance and Speed 4.9/5
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Customer Support 4.5/5
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Value for Money 4.9/5
AI summary
Web server powering 34% of all websites — reverse proxy, load balancing, SSL termination, 10,000+ concurrent connections.