All of ultrasurf.usAll blocked4 tested URLs
Can you open https://ultrasurf.us from mainland China?
No.
It's blocked — 100% of the last 1 conclusive tests failed in mainland China.
Access ultrasurf.us with GreatFireVPN →2012first tested
1/1blocked · last 90 days
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Frequently asked questions
Is https://ultrasurf.us blocked in mainland China right now?
As of the last test on 2026-05-19, https://ultrasurf.us is 100% blocked in mainland China, based on GreatFire's live Great Firewall measurements.
Why is https://ultrasurf.us blocked in mainland China?
It's blocked — 100% of the last 1 conclusive tests failed in mainland China.
Since when has https://ultrasurf.us been blocked?
GreatFire has recorded interference with https://ultrasurf.us from mainland China since 2012-12-17.
How can I access https://ultrasurf.us from mainland China?
You need a circumvention tool such as a VPN. GreatFireVPN, built by GreatFire, is designed to bypass the Great Firewall and reach sites like ultrasurf.us.
https://ultrasurf.us · JSON