Lighttpd
Lighttpd is a lightweight, high-performance web server designed for speed-critical environments and low memory usage. It is optimized for handling a large number of parallel connections efficiently, making it suitable for high-traffic websites and applications. It supports FastCGI, SCGI, and CGI interfaces, along with features like URL rewriting and load balancing.
Developers should learn Lighttpd when building web applications that require high concurrency and low resource consumption, such as content delivery networks (CDNs), streaming services, or embedded systems. It is particularly useful for serving static files quickly and handling many simultaneous connections without significant overhead, making it a good choice for performance-focused deployments.