Can you open smp4.simplex.im from mainland China?
No.
It's blocked — 100% of the last 1 conclusive tests failed in mainland China.
Access smp4.simplex.im with GreatFireVPN →2023first tested
1/1blocked · last 90 days
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Frequently asked questions
Is smp4.simplex.im blocked in mainland China right now?
As of the last test on 2026-07-10, smp4.simplex.im is 100% blocked in mainland China, based on GreatFire's live Great Firewall measurements.
Why is smp4.simplex.im blocked in mainland China?
It's blocked — 100% of the last 1 conclusive tests failed in mainland China.
Since when has smp4.simplex.im been blocked?
GreatFire has recorded interference with smp4.simplex.im from mainland China since 2023-12-01.
How can I access smp4.simplex.im 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 smp4.simplex.im.
http://smp4.simplex.im · JSON