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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. github.com
   2. facebook.com
   3. google.com
   4. youtube.com
   5. wikileaks.ch
   6. twitter.com
   7. dropbox.com
   8. gmail.com
   9. wikipedia.org
   10. cnn.com

URL / Domain:

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

Testing if hostname is DNS poisoned
--------------------------------------

Expected value of DNS A records:
74.125.228.224
74.125.228.225
74.125.228.226
74.125.228.227
74.125.228.228
74.125.228.229
74.125.228.230
74.125.228.231
74.125.228.232
74.125.228.233
74.125.228.238

LocationLookup ResultStatus
Beijing 216.58.221.142
fail
Shenzhen 216.58.221.142
fail
Inner Mongolia 216.58.221.142
fail
Heilongjiang Province 216.58.221.142
fail

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.

Testing if URL is blocked over HTTP(s)
--------------------------------------
HTTP ResponseStatus
Connection timed out.

This URL appears to be blocked in China.




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