Hosting is the service that allows websites and applications to be available on the Internet. Hosting providers supply the space on a server, connectivity, and other necessary services to host and keep a website running.

There are various types of hosting, including shared hosting, VPS (Virtual Private Server), dedicated hosting, and cloud hosting. Each type of hosting offers different levels of control, performance, and scalability.

The hosting service is essential to ensure that websites are accessible to users at all times, providing solutions that meet the specific traffic and resource needs of different web applications.