Can you open www.4chan.org:80 from mainland China?
No.
No recent testsVerdict from 2025-11-20 · 8 mo ago
As of the last test on 2025-11-20 — 8 mo ago — it was blocked in mainland China. We haven't tested it since, so this may have changed.
Access www.4chan.org:80 with GreatFireVPN →Frequently asked questions
Is www.4chan.org:80 blocked in mainland China right now?
We haven't tested www.4chan.org:80 in the last 90 days. As of the last test on 2025-11-20 (8 mo ago), it was blocked in mainland China. Use the Test now button on this page for a fresh measurement.
Why is www.4chan.org:80 blocked in mainland China?
As of the last test on 2025-11-20 — 8 mo ago — it was blocked in mainland China. We haven't tested it since, so this may have changed.
Since when has www.4chan.org:80 been blocked?
GreatFire has recorded interference with www.4chan.org:80 from mainland China since 2015-09-25.
How can I access www.4chan.org:80 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 www.4chan.org:80.
http://www.4chan.org:80 · JSON