Chinese Firewall Test

Checks whether a site is blocked by the Great Firewall of China. This test checks across a number of servers from various locations in mainland China to determine if access to the site provided is possible from behind the Great Firewall of China

This test checks for symptoms of DNS poisoning, one of the more common methods used by the Chinese government to block access to websites.
Top 10 tested domains:
 1. facebook.com
 2. wikileaks.ch
 3. youtube.com
 4. twitter.com
 5. google.com
 6. gmail.com
 7. cnn.com
 8. wikipedia.org
 9. dropbox.com
 10. yahoo.com

URL / Domain:
Chinese Firewall Test results for twitter.com
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Expected value of DNS A records:
104.244.42.129 104.244.42.65

LocationLookup ResultStatus
Beijing208.43.237.140fail
Shenzhen208.43.237.140fail
Inner Mongolia208.43.237.140fail
Heilongjiang Province208.43.237.140fail
Yunnan Province208.43.237.140fail

No servers were able to reach your site on the correct IP address. This means that any URL's on this host are most likely NOT accessible from within mainland China.