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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:

Domain (e.g.

Chinese firewall test results for

Expected value of DNS A records:

LocationLookup ResultStatus
Inner Mongolia
Heilongjiang Province
Yunnan Province216.58.221.174

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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