Tor Metrics Portal gives a set of useful instruments to monitor the workload of the TOR networks. It proposes a complete collection of tools and documentations for statistical analysis regarding the activities of relays and bridges. The metrics could also be used for intelligence purpose, for example analyzing principal network metrics it is possible to investigate on the application of monitoring system inside a country for censorship purpose. The data could give an indication of the response of local government to the dissident communications. It is happened for example in Syria and in Iran, country where the control of the web is a major concern of the government.”]