Can you open 21.chatnook.com:81 from mainland China?
Not sure yet.
There isn't enough recent data to reach a verdict.
2015first tested
3 mo agolast tested
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Frequently asked questions
Is 21.chatnook.com:81 blocked in mainland China right now?
As of the last test on 2026-05-11, 21.chatnook.com:81 is not enough data in mainland China, based on GreatFire's live Great Firewall measurements.
http://21.chatnook.com:81 · JSON