The Net Data Directory collects and shares information on different sources of data about the Internet. For more about the project, see our about page. To get started, use the search box below, or check out our quick start guide.
PingER (Ping End-to-end Reporting) is an Internet End-to-end Performance Measurement (IEPM) project, led by SLAC at Stanford University, to monitor performance of Internet links. In recent years it has been more focused on measuring the Digital Divide from an Internet Performance viewpoint. The project now involves measurements to over 700 sites in over 160 countries. It has a section on case studies, the latest being from Nepal, Syria, and Sudan.
This company provides (though only clients get full access to the full data, there is a lot of information open to anyone) detailed information on broadband access, IPTV, and VoIP across the world (more than 100 countries). Its Global Broadband Statistics produce quarterly reports tracking different technologies and operators.
The Open State Foundation founded Politwoops in the Netherlands in 2010 to track deleted tweets from politicians in the European Union. Politwoops US launched in 2012.
Privacy International provides vast amounts of information on privacy regulation and surveillance and publishes a series of brief country reports on privacy and surveillance.
This site provides data on the “API economy”: number of existing APIs (since 2005), categories of APIs, and growth of these categories.
This company, bought by Akamai in early December 2013, provides anti-DDoS services, and publishes (since 2011) quarterly reports on DDoS attacks around the world. Its PLX Patrol provides visualization and ranking by country of DDoS attacks.
The Swedish Post and Telecoms Authority publishes, since 1998, a wide range reports on the state of the Internet in Sweden, covering issues such as broadband, internet security, policy, IPv6 deployment, infrastructure, etc.
This federation of independent root operators maps the location of public-root name servers.
This company collects information on the most visited sites by country. Quancast offers (often only for clients) profiles of the audience of specific websites, including number of unique browsers and users, visits, page views, demographics (only US), audience’s interests, visit frequency, and traffic sources.
This initiative plans to rank telecoms and Internet companies on 31 indicators related with freedom of expression and privacy.
