Data transfer refers to the amount of traffic your website receives. Aside from the number of users that access your website, data transfer is also dependent on how large your site files are. If you have large images and files for download, your data transfer will be more as each user will be receiving more information (data) from your website. For simple websites, every 10,000 visitors will use up about 1 GB of transfer. Data transfer readings are reset on the 1st of every month for each hosting account.