All of nih.govMixed40 tested URLs
Can you open https://nih.gov from mainland China?
Yes.
No recent testsVerdict from 2026-03-24 · 5 mo ago
As of the last test on 2026-03-24 — 5 mo ago — it was reachable in mainland China. We haven't tested it since, so this may have changed.
Same address over HTTP:http://nih.govNot enough data
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.
2025first tested
5 mo agolast tested
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Frequently asked questions
Is https://nih.gov blocked in mainland China right now?
We haven't tested https://nih.gov in the last 90 days. As of the last test on 2026-03-24 (5 mo ago), it was reachable in mainland China. Use the Test now button on this page for a fresh measurement.
https://nih.gov · JSON