Can you open http://104.21.78.139 from mainland China?
Yes.
All 2 recent conclusive tests connected normally.
2024first tested
0/2disrupted · last 90 days
22 d agolast tested
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Frequently asked questions
Is http://104.21.78.139 blocked in mainland China right now?
As of the last test on 2026-07-18, http://104.21.78.139 is not blocked in mainland China, based on GreatFire's live Great Firewall measurements.
http://104.21.78.139 · JSON