Is it blocked in mainland China?
A Great Firewall of China test you can run yourself: check any website against the GFW, with live results and history going back to 2011.
29% of 708,309 analyzed URLs are currently blocked in mainland China. See trends →
Recently tested
http://s.weibo.com/weibo/tea%20party5 min agoNot blockedhttp://coinx.ph5 min agoBlockedhttp://nav.cx5 min agoNot blockedhttps://coinx.ph5 min agoBlockedhttps://mycima.fun5 min agoNot blockedhttp://s.weibo.com/weibo/te%20connectivity5 min agoNot blockedhttp://9xbuddy.in5 min agoBlockedhttp://mycima.fun5 min agoNot blockedhttp://s.weibo.com/weibo/kuang%20kuang5 min agoNot blockedhttp://superprof.es5 min agoNot blockedhttp://s.weibo.com/weibo/%E5%8A%9B%E5%AE%8F%20%E4%BA%91%E8%BF%AA%20%E5%90%8C%E6%80%A7%E6%81%8B5 min agoNot blockedhttp://readcolor.com5 min agoNot blockedAbout this Great Firewall test
Type an address above and the China firewall test fetches it from probes inside mainland China and from a control probe outside, at the same moment. Where the two disagree — the connection is reset, the name resolves to an address that is not the site's, the request lands on a server inside the country — the page names the mechanism and shows when it started.
A GFW test describes a moment, so every result here carries its date and the whole history behind it, kept in full since February 2011. You do not need to be in China to run one, and there is nothing to install.
See how the 1,000 most-visited websites fare →
- What is a Great Firewall test?
- A measurement of whether one exact web address can be reached from inside mainland China. Ours compares probes in the country against a control outside it, so a verdict reflects the Great Firewall rather than an ordinary outage at the site itself.
- How does this China firewall test work?
- Four detectors read the raw measurements: connection reset, DNS poisoning, redirection to a server inside mainland China, and failure to load where the control succeeded. The strongest signal decides the verdict, and the evidence behind it is on the URL's own page.
- Is the GFW test free?
- Yes, with nothing to install and no account. The dataset is open too: verdicts, the measurements behind each test, and feeds you can subscribe to.
How we test, and how a verdict is decided·Frequently asked questions