The function of web hosting in website management is pivotal, as it provides the infrastructure needed for websites to be accessible on the internet. Web hosting services allocate server space for storing website files, which includes HTML, CSS, and media content. They also ensure that websites can handle traffic, offering performance optimization and security features to prevent downtime. Moreover, quality web hosting may include additional services such as domain registration, email hosting, and technical support, which are essential for maintaining site functionality and enhancing user experience.