Web hosting service is a type of internet[3] service that allows individuals and businesses to make their websites accessible on the World Wide Web[1]. It involves storing website[4] data on powerful servers located in data centers. There are various types of web hosting, including shared hosting, where multiple websites share server resources, dedicated hosting, where a single server is devoted to a single website, and virtual dedicated server, which provides users with divided server resources. Some web hosting services also offer specialized types of hosting like image hosting, video hosting, blog[6] hosting, and e-commerce hosting. The reliability and security[5] of a web hosting service are key considerations, as they protect customer[2] sites from potential attacks and ensure maximum uptime.
A web hosting service is a type of Internet hosting service that hosts websites for clients, i.e. it offers the facilities required for them to create and maintain a site and makes it accessible on the World Wide Web. Companies providing web hosting services are sometimes called web hosts.
Typically, web hosting requires the following:
- one or more servers to act as the host(s) for the sites; servers may be physical or virtual
- colocation for the server(s), providing physical space, electricity, and Internet connectivity;
- Domain Name System configuration to define name(s) for the sites and point them to the hosting server(s);
- a web server running on the host;
- for each site hosted on the server:
- space on the server(s) to hold the files making up the site
- site-specific configuration
- often, a database;
- software and credentials allowing the client to access these, enabling them to create, configure, and modify the site;
- email connectivity allowing the host and site to send email to the client.