Traffic term explained
The number of site visitors coming from a particular source or several sources over a period of time (usually a day or month) is called website traffic. Traffic is one of the main indicators of the credibility and popularity of the resource.
Traffic is measured in number of unique visitors. The traffic is targeted (leads to the site target audience) or non-targeted (there is no benefit, only additional server load). There are special tools for measuring traffic: various counters, the service Alexa, bars for browsers and others.
Any website interested in attracting targeted traffic with SEO can come from search engines or through search engine marketing and other sources, such as social networks, forums, blogs etc. Traffic is also one of the types of SEO ranks.