what is traffic?

Traffic

The measurement of the amount of users that visit a Web site.

Network traffic or data traffic is the amount of data moving across a network at a given point of time.
Network data is mostly encapsulated in network packets, which provide the load in the network. Network traffic is the main component for network traffic measurement, network traffic control and simulation. The proper organization of network traffic helps in ensuring the quality of service in a given network.


Google now processes over 40,000 search queries every second on average (visualize them here), which translates to over 3.5 billion searches per day and 1.2 trillion searches per year worldwide. The chart below shows the number of searches per year throughout Google's history:



When Google was founded in September 1998, it was serving ten thousand search queries per day [1] (by the end of 2006 that same amount would be served in a single second). In September 1999, one year after being launched, Google was already answering 3.5 million search queries daily. [1]
Nine months later and, in mid 2000, search volume had increased fivefold, reaching 18 million queries on an average day. [1] By the time Google announced its IPO in April 2004, users around the world were submitting more than 200 million queries to Google every day.

In August 2012, Amit Singhal, Senior Vice President at Google and responsible for the development of Google Search, disclosed that Google's search engine found more than 30 trillion unique URLs on the Web, crawls 20 billion sites a day, and processes 100 billion searches every month [2] (which translate to 3.3 billion searches per day and over 38,000 thousand per second).



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