nginx is a web server and reverse proxy server designed for high performance and low resource consumption. It is used by system administrators and developers to host websites, manage traffic, and improve application delivery. Its event-driven architecture makes it a common choice for handling many simultaneous connections efficiently.

• Reverse Proxy and Load Balancing: Acts as an intermediary for client requests, distributing traffic across multiple backend servers to improve reliability and performance.
• HTTP Server: Serves static web content like HTML, CSS, and images quickly and with minimal memory usage.
• Caching: Stores frequently requested content to reduce load on application servers and speed up response times for users.
• SSL/TLS Termination: Manages the encryption and decryption of HTTPS traffic, offloading this processing from backend applications.
• High Concurrency Handling: Uses an asynchronous, event-driven approach to manage thousands of connections concurrently without creating a separate process for each one.