Can you open http://cn.archive.ubuntu.com/ubuntu from mainland China?
Not really.
In mainland China it is diverted to a server inside the country in 100% of recent tests.
The two are filtered by different means — an unencrypted request by the address and keywords it carries in the clear, an encrypted one by the server name in its TLS handshake — so one working while the other does not is normal.
Frequently asked questions
Is http://cn.archive.ubuntu.com/ubuntu blocked in mainland China right now?
As of the last test on 2026-08-19, http://cn.archive.ubuntu.com/ubuntu is 100% redirected to a Chinese site in mainland China, based on GreatFire's live Great Firewall measurements.
Why is http://cn.archive.ubuntu.com/ubuntu blocked in mainland China?
In mainland China it is diverted to a server inside the country in 100% of recent tests.
Since when has http://cn.archive.ubuntu.com/ubuntu been blocked?
GreatFire has recorded interference with http://cn.archive.ubuntu.com/ubuntu from mainland China since 2022-09-24.
How can I access http://cn.archive.ubuntu.com/ubuntu 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.archive.ubuntu.com.
http://cn.archive.ubuntu.com/ubuntu · JSON