What is a web server?

A web server is defined as a specialized machine that serves website content via HTTP or HTTPS. It plays a crucial role in the delivery of web pages to users. When a user requests a web page through their browser, the request is sent to the web server, which then processes that request and provides the appropriate content, such as HTML files, images, and other types of data. The server responds specifically with the requested resources and adheres to these protocols, allowing for secure communication (HTTPS) as well as standard transfers (HTTP).

This understanding highlights the web server's purpose and functionality in the web ecosystem, distinguishing it from other types of devices that manage security, serve applications, or function as clients. A web server's primary role is not to perform network security functions, run browser applications, or act as client devices, which focus on retrieving and displaying web content rather than hosting it.