A free web hosting service is a web hosting service that is free, usually advertisement-supported and of limited functionality, though not at all times. 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.
Features and limitations
Only a few free web hosts offer basic package for free and enhanced packages (with more features) for a cost. This allows users to try the service for an initial trial (see how it performs compared to other hosts), and then upgrade when (and if) needed.
Free hosting may have the following limitations:
Limitation on the size of each hosted file
Very small bandwidth per month compared to paid hosting
Disabling on hotlinking of files
File type restrictions (for example MP3, MPEG, ZIP etc.)
Compulsory placement of the Webhosts' Banner or Popup ads into all web pages
No provided uptime guarantee
No allowance of custom URLS, such as "http://www.domain.com". It has to be "http://www.provider.com/domain" or "http://domain.provider.com/".
Some free host may provide these extra features:
A web based control panel
Free email accounts for the domain or subdomain hosted
File transfer via FTP
Scripting languages: PHP, ASP, Perl etc.
Relational databases such as MySQL
Scheduled processes, known as cronjobs
Other features such as guestbooks
Forums and community resources not typical of paid hosts
Reward systems which provide extra free products and services
Have no data limitations offering unlimited space
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