nginx is a free, open-source web server software that also functions as a reverse proxy, load balancer, and HTTP cache. It is designed for administrators and developers who need a high-performance, resource-efficient solution for serving web content and managing network traffic.

• High-performance HTTP server: Serves static content quickly and can handle thousands of concurrent connections with minimal memory usage.
• Reverse proxy and load balancing: Distributes incoming client requests across multiple backend servers to improve reliability and application performance.
• Mail proxy server: Can act as a proxy for IMAP, POP3, and SMTP email protocols.
• Low resource consumption: Its event-driven architecture is efficient, making it suitable for systems with limited resources or high-traffic websites.
• Extensible configuration: Offers a flexible configuration system to control server behavior, URL rewriting, and access rules.