A free web hosting service is a web hosting service that is free, usually advertisement-supported. Free webhosting that does not make use of advertising also exists; these often come with some limits on usage, however. Free web hosts will usually provide a subdomain (yoursite.example.com) or a directory (www.example.com/~yourname). In contrast, paid web hosts will usually provide a second-level domain along with the hosting (www.yourname.com). Many free hosts do allow use of separately-purchased domains. Rarely, a free host may also operate as a domain name registrar. There are also some free domain companies which may provide free third level domain names free with DNS and other facilities.
Many free web hosting services discourage the use of their free web hosting services for file or image hosting only in which no web page is established or setup resulting in the use of bandwidth due to hot linking of files with no revenue gain to the service provider in the case of advertising supported services. As a result, hot linking or remote linking or inclusion of many image, media and download file formats is disabled or not permitted on many free web hosting services.