ViewDNS.info - Your one source for DNS related tools!
ViewDNS.info > Tools >

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:
74.125.228.192
74.125.228.193
74.125.228.194
74.125.228.195
74.125.228.196
74.125.228.197
74.125.228.198
74.125.228.199
74.125.228.200
74.125.228.201
74.125.228.206

LocationLookup ResultStatus
Beijing 173.194.127.160
173.194.127.161
173.194.127.162
173.194.127.163
173.194.127.164
173.194.127.165
173.194.127.166
173.194.127.167
173.194.127.168
173.194.127.169
173.194.127.174
ok
Shenzen 173.194.127.160
173.194.127.161
173.194.127.162
173.194.127.163
173.194.127.164
173.194.127.165
173.194.127.166
173.194.127.167
173.194.127.168
173.194.127.169
173.194.127.174
ok
Inner Mongolia 173.194.127.160
173.194.127.161
173.194.127.162
173.194.127.163
173.194.127.164
173.194.127.165
173.194.127.166
173.194.127.167
173.194.127.168
173.194.127.169
173.194.127.174
ok
Heilongjiang Province 173.194.127.160
173.194.127.161
173.194.127.162
173.194.127.163
173.194.127.164
173.194.127.165
173.194.127.166
173.194.127.167
173.194.127.168
173.194.127.169
173.194.127.174
ok

All servers were able to reach your site. This means that the hostname itself is accessible from within mainland China.

Testing if URL is blocked over HTTP(s)
--------------------------------------
HTTP ResponseStatus
HTTP/1.1 200 OK

This URL appears to be accessible from mainland China.




All content 2014 ViewDNS.info
Feedback / Suggestions   Advertise on ViewDNS.info   Become an Affiliate