Internet Censorship Mechanisms

As of today, we have identified and successfully overcome all the following major censorship mechanisms:

  • IP and Domain Blocking: IP and Domains of blacklisted websites are blocked.
  • Real Time Blacklisting: Web Page with censored words are identified and are blacklisted and blocked.
  • Domain Name Server (DNS) Hijacking : DNS queries for high-profile websites are hijacked and fake answers are returned.
  • Content Filtering: Emails, web content, Instant Messages (IM) containing blacklisted words are monitored and dropped.


The following diagram illustrates the current internet censorship mechanisms used by China: