著名的网站在线测试站点WebSitePulse推出了一个新的工具：Website Test behind the Great Firewall of China，用来测试网站在中国是否被GFW屏蔽了。
当然，这个工具是给外国人用的，因为在中国只需要这个网站访问一下就知道是否被屏蔽了。
进入http://www.websitepulse.com/help/tools.php?singletestpage=china-test之后，输入网站地址，选择位置（香港、北京和上海）就可以测试了。
结果将会使用OK或者couldn’t connect to host来表示是否能访问。
要注意的是，某网站在中国这个地区（或运营商）被屏蔽，却可能在另一个地区（或运营商）允许访问。
没有屏蔽：
引用内容Website test results
URL tested: http://feeds.feedburner.com
Test performed from: Hong Kong, China
Test performed at: 2007-10-06 03:57:37 (GMT -04:00)
Status: OK
Response Time: 2.535 sec
DNS: 0.248 sec
Connect: 0.243 sec
Redirect: 1.057 sec
First byte: 0.247 sec
Last byte: 0.740 sec
Size: 8767 bytes
URL tested: http://feeds.feedburner.com
Test performed from: Hong Kong, China
Test performed at: 2007-10-06 03:57:37 (GMT -04:00)
Status: OK
Response Time: 2.535 sec
DNS: 0.248 sec
Connect: 0.243 sec
Redirect: 1.057 sec
First byte: 0.247 sec
Last byte: 0.740 sec
Size: 8767 bytes
已经屏蔽：
引用内容Website test results
URL tested: http://feeds.feedburner.com
Test performed from: Beijing, China
Test performed at: 2007-10-06 04:00:03 (GMT -04:00)
Status: couldn't connect to host
Response Time: 0.265 sec
DNS: 0.265 sec
Connect: 0.000 sec
Redirect: 0.000 sec
First byte: 0.000 sec
Last byte: 0.000 sec
Size: 0 bytes
URL tested: http://feeds.feedburner.com
Test performed from: Beijing, China
Test performed at: 2007-10-06 04:00:03 (GMT -04:00)
Status: couldn't connect to host
Response Time: 0.265 sec
DNS: 0.265 sec
Connect: 0.000 sec
Redirect: 0.000 sec
First byte: 0.000 sec
Last byte: 0.000 sec
Size: 0 bytes
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