Can you open http://s22.duckdns.org/go/5 from mainland China?
No.
No recent testsVerdict from 2026-05-16 · 3 mo ago
As of the last test on 2026-05-16 — 3 mo ago — it was blocked in mainland China. We haven't tested it since, so this may have changed.
Access s22.duckdns.org with GreatFireVPN →Frequently asked questions
Is http://s22.duckdns.org/go/5 blocked in mainland China right now?
We haven't tested http://s22.duckdns.org/go/5 in the last 90 days. As of the last test on 2026-05-16 (3 mo ago), it was blocked in mainland China. Use the Test now button on this page for a fresh measurement.
Why is http://s22.duckdns.org/go/5 blocked in mainland China?
As of the last test on 2026-05-16 — 3 mo ago — it was blocked in mainland China. We haven't tested it since, so this may have changed.
Since when has http://s22.duckdns.org/go/5 been blocked?
GreatFire has recorded interference with http://s22.duckdns.org/go/5 from mainland China since 2015-09-22.
How can I access http://s22.duckdns.org/go/5 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 s22.duckdns.org.
http://s22.duckdns.org/go/5 · JSON