Through 2010 the Open Net Initiative had documented Internet filtering by governments in over forty countries worldwide.
After a decade of collaboration in the study and documentation of Internet filtering and control mechanisms around the world, the Open Net Initiative partners will no longer carry out research under the ONI banner.
The ONI website, including all reports and data, will be maintained indefinitely to allow continued public access to their entire archive of published work and data.
ONI's summarized global Internet filtering data was last updated on 20 September 2013.
Detailed country by country information on Internet censorship and surveillance is provided in the Freedom on the Net reports from Freedom House, by the Open Net Initiative, by Reporters Without Borders, and in the Country Reports on Human Rights Practices from the U. State Department Bureau of Democracy, Human Rights, and Labor.
The ratings produced by several of these organizations are summarized below as well as in the Censorship by country article.
Freedom House has produced five editions of its report Freedom on the Net.The first in 2009 surveyed 15 countries, The reports are based on surveys that ask a set of questions designed to measure each country’s level of Internet and digital media freedom, as well as the access and openness of other digital means of transmitting information, particularly mobile phones and text messaging services.Results are presented for three areas: The results from the three areas are combined into a total score for a country (from 0 for best to 100 for worst) and countries are rated as "free" (0 to 30), "partly free" (31 to 60), or "not free" (61 to 100) based on the totals.In addition the 2012 report identified seven countries that were at particular risk of suffering setbacks related to Internet freedom in late 2012 and in 2013: Azerbaijan, Libya, Malaysia, Pakistan, Rwanda, Russia, and Sri Lanka.At the time the Internet in most of these countries was a relatively open and unconstrained space for free expression, but the countries also typically featured a repressive environment for traditional media and had recently considered or introduced legislation that would negatively affect Internet freedom.Due to legal concerns the Open Net Initiative does not check for filtering of child pornography and because their classifications focus on technical filtering, they do not include other types of censorship.