If there is an increase of Web traffic then it means that some sites are being viewed excessively by many people. Web traffic can be increased by placing a site in search engines. By purchasing of advertising also one can increase the Web traffic.
Mesuring the Web traffic enables you to determine the popularity of a web page. An external tracking device is connected to the web site and by using a code the Web traffic can be measured. However one should be very alert while monitoring Web traffic.

While measuring Web traffic one should count the number of visitors, the number of page viewed and the duration of the visit on a particular page. High Web traffic means that your website is popular but overloading of Web traffic can be a problem.
There are some web sites which are so popular that any links to external sites can lead to overloaded Web traffic. Overloading of Web sites can lead to closing down of your web site. There have been such issues when due to an excessive or an increase in Web traffic have led to closing of a website.