Can you open sy.w3.changeip.name/go/3d from mainland China?
Not sure yet.
There isn't enough recent data to reach a verdict.
2016first tested
2 mo agolast tested
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Frequently asked questions
Is sy.w3.changeip.name/go/3d blocked in mainland China right now?
As of the last test on 2026-06-05, sy.w3.changeip.name/go/3d is not enough data in mainland China, based on GreatFire's live Great Firewall measurements.
http://sy.w3.changeip.name/go/3d · JSON