All of sciencenet.cnAll clear3 tested URLs
Can you open https://sciencenet.cn from mainland China?
Not sure yet.
There isn't enough recent data to reach a verdict.
Same address over HTTP:http://sciencenet.cnNot blocked
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.
2026first tested
10 d agolast tested
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Frequently asked questions
Is https://sciencenet.cn blocked in mainland China right now?
As of the last test on 2026-08-13, https://sciencenet.cn is not enough data in mainland China, based on GreatFire's live Great Firewall measurements.
https://sciencenet.cn · JSON