Part of iij.jpAll blocked3 tested URLs
Can you open http://public.dns.iij.jp from mainland China?
Not sure yet.
There isn't enough recent data to reach a verdict.
Same address over HTTPS:https://public.dns.iij.jpBlocked
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.
2021first tested
2 mo agolast tested
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Frequently asked questions
Is http://public.dns.iij.jp blocked in mainland China right now?
As of the last test on 2026-06-12, http://public.dns.iij.jp is not enough data in mainland China, based on GreatFire's live Great Firewall measurements.
http://public.dns.iij.jp · JSON