If you have had a website hosting account before, you may have come across a situation where you buy some unrestricted feature only to find later that it really is limited and you have some fixed quota. This may happen with the disk space, the monthly bandwidth, the database storage along with other features that many web hosting providers offer in a way that is different from what you will really get. That is the so-called overselling, which providers use in order to attract customers although they are aware that they can't provide their users with the attributes they promote usually due to the nature of their web hosting platform or in the case of the resellers - because they have some limits from the actual hosting provider.
