Low Cost Web Hosting Providers A web host is the server or computer where the websites store files, graphics and essential data. The web host provider acts as the site for a collection of web sites all over the world. All the web-hosting client does is upload the websites to the common web server. This web server is maintained by the Internet service provider, which ensures fast and constant access to the Internet. This World Wide Web, which is a collection of sites, can be accessed by anyone through the network.