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  2. Internet censorship and surveillance by country - Wikipedia

    en.wikipedia.org/wiki/Internet_censorship_and...

    From 2006 to 2012 the number of countries listed fell to 10 and then rose to 12. The list was not updated in 2013. In 2014 the list grew to 19 with an increased emphasis on surveillance in addition to censorship. The list has not been updated since 2014. When the "Countries under surveillance" list was introduced in 2008, it listed 10 countries.

  3. List of websites blocked in mainland China - Wikipedia

    en.wikipedia.org/wiki/List_of_websites_blocked...

    Chinese Firewall Test - Instantly test if a URL is blocked by the Great Firewall of China in real time. Tests for both symptoms of DNS poisoning and HTTP blocking from a number of locations within mainland China. China Firewall Test - Test if any domain is DNS poisoned in China in real-time. DNS poisoning is one way in which websites can be ...

  4. VPN blocking - Wikipedia

    en.wikipedia.org/wiki/VPN_blocking

    VPN blocking is a technique used to block the encrypted protocol tunneling communications methods used by virtual private network (VPN) systems. Often used by large organizations such as national governments or corporations, it can act as a tool for computer security or Internet censorship by preventing the use of VPNs to bypass network ...

  5. Category:Blocked websites by country - Wikipedia

    en.wikipedia.org/wiki/Category:Blocked_websites...

    Pages in category "Blocked websites by country" The following 7 pages are in this category, out of 7 total. This list may not reflect recent changes. ...

  6. Censorship by country - Wikipedia

    en.wikipedia.org/wiki/Censorship_by_country

    Censorship by country collects information on censorship, Internet censorship, freedom of the press, freedom of speech, and human rights by country and presents it in a sortable table, together with links to articles with more information. In addition to countries, the table includes information on former countries, disputed countries ...

  7. Great Firewall - Wikipedia

    en.wikipedia.org/wiki/Great_Firewall

    Because the Great Firewall blocks destination IP addresses and domain names and inspects the data being sent or received, a basic censorship circumvention strategy is to use proxy nodes and encrypt the data. Bypassing the firewall is known as fānqiáng (翻墙, "climb over the wall"), and most circumvention tools combine these two mechanisms ...