Can you open cb.w3.changeip.name/go/5s from mainland China?
No.
No recent testsVerdict from 2025-11-05 · 9 mo ago
As of the last test on 2025-11-05 — 9 mo ago — it was blocked in mainland China. We haven't tested it since, so this may have changed.
Access cb.w3.changeip.name/go/5s with GreatFireVPN →Frequently asked questions
Is cb.w3.changeip.name/go/5s blocked in mainland China right now?
We haven't tested cb.w3.changeip.name/go/5s in the last 90 days. As of the last test on 2025-11-05 (9 mo ago), it was blocked in mainland China. Use the Test now button on this page for a fresh measurement.
Why is cb.w3.changeip.name/go/5s blocked in mainland China?
As of the last test on 2025-11-05 — 9 mo ago — it was blocked in mainland China. We haven't tested it since, so this may have changed.
Since when has cb.w3.changeip.name/go/5s been blocked?
GreatFire has recorded interference with cb.w3.changeip.name/go/5s from mainland China since 2016-11-21.
How can I access cb.w3.changeip.name/go/5s 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 cb.w3.changeip.name/go/5s.
http://cb.w3.changeip.name/go/5s · JSON