Can you open cn.pool.ntp.org from mainland China?
Not really.
No recent testsVerdict from 2025-12-19 · 7 mo ago
As of the last test on 2025-12-19 — 7 mo ago — it was redirected to a Chinese site in mainland China. We haven't tested it since, so this may have changed.
Access cn.pool.ntp.org with GreatFireVPN →Frequently asked questions
Is cn.pool.ntp.org blocked in mainland China right now?
We haven't tested cn.pool.ntp.org in the last 90 days. As of the last test on 2025-12-19 (7 mo ago), it was redirected to a Chinese site in mainland China. Use the Test now button on this page for a fresh measurement.
Why is cn.pool.ntp.org blocked in mainland China?
As of the last test on 2025-12-19 — 7 mo ago — it was redirected to a Chinese site in mainland China. We haven't tested it since, so this may have changed.
Since when has cn.pool.ntp.org been blocked?
GreatFire has recorded interference with cn.pool.ntp.org from mainland China since 2020-06-19.
How can I access cn.pool.ntp.org 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 cn.pool.ntp.org.
http://cn.pool.ntp.org · JSON