Can you open psiphon.ca:443 from mainland China?
No.
No recent testsVerdict from 2026-03-01 · 5 mo ago
As of the last test on 2026-03-01 — 5 mo ago — it was blocked in mainland China. We haven't tested it since, so this may have changed.
Access psiphon.ca:443 with GreatFireVPN →Frequently asked questions
Is psiphon.ca:443 blocked in mainland China right now?
We haven't tested psiphon.ca:443 in the last 90 days. As of the last test on 2026-03-01 (5 mo ago), it was blocked in mainland China. Use the Test now button on this page for a fresh measurement.
Why is psiphon.ca:443 blocked in mainland China?
As of the last test on 2026-03-01 — 5 mo ago — it was blocked in mainland China. We haven't tested it since, so this may have changed.
Since when has psiphon.ca:443 been blocked?
GreatFire has recorded interference with psiphon.ca:443 from mainland China since 2015-07-12.
How can I access psiphon.ca:443 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 psiphon.ca:443.
http://psiphon.ca:443 · JSON