nginx is a web server and reverse proxy server software used for hosting websites and applications. It is designed for developers, system administrators, and organizations needing a reliable, high-performance solution for serving web content and managing network traffic.

• High-performance architecture: Uses an asynchronous, event-driven model to handle many concurrent connections with low memory usage.
• Reverse proxy and load balancing: Distributes incoming traffic across multiple backend servers to improve reliability and application performance.
• Static content serving: Efficiently delivers static files like HTML, CSS, JavaScript, and images.
• SSL/TLS termination: Manages HTTPS encryption and decryption, offloading this work from application servers.
• Extensible configuration: Offers a flexible configuration system for setting up virtual hosts, access rules, and URL rewrites.