The monthly traffic feature, which is at times also called bandwidth or data transfer, identifies the total amount of data which can be uploaded to your shared hosting account and downloaded from it every month. The site traffic is generated primarily by web site visits - whenever someone finds your website, the web pages they see are downloaded from your hosting server to his or her machine or mobile device and they're shown by the web browser. What counts for the web site traffic generated is the size of these pages, as a result the more site visitors you get for some period of time, the more site traffic will be produced. In addition to the website visits, file uploads are also counted towards the entire monthly transfer i.e. every time you upload web site content or some other files through a file manager or an FTP application, they'll also generate some website traffic. The counter resets on the very first day of each and every month and it's not related to the date you've registered or the date you have renewed the web hosting package.