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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

Domain (e.g. domain.com):

Chinese firewall test results for yahoo.com
==============

Expected value of DNS A records:
206.190.36.45
98.138.253.109
98.139.183.24


LocationLookup ResultStatus
Beijing 206.190.36.45
98.138.253.109
98.139.183.24
ok
Shenzhen 206.190.36.45
98.138.253.109
98.139.183.24
ok
Inner Mongolia ;;
communications
error
to
159.226.8.6#53:
connection
reset
fail
Heilongjiang Province 206.190.36.45
98.138.253.109
98.139.183.24
fail
Yunnan Province206.190.36.45
98.138.253.109
98.139.183.24
fail

Some of the servers used were able to reach your site, but some weren't. This means that your site may NOT be accessible from all areas within mainland China. You should assume that a majority of Chinese users will NOT be able to reach your site.





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