Website traffic is the amount of data sent and received by visitors to a web site. This is determined by the number of visitors and the number of pages they visit. Sites monitor the incoming and outgoing traffic to see which parts or pages of their site are popular and if there are any apparent trends, such as one specific page being viewed mostly by people in a particular country. Website traffic is the most crucial part to having an online business and is a key to the success of online business. Most online publishers know that website traffic is the amount of visitors your website receives and is relatively vital for the survival of your website traffic.