Part of nic.czMixed3 tested URLs
Can you open https://odvr.nic.cz/doh from mainland China?
Sometimes.
Access is unreliable — 100% of the last 1 conclusive tests showed interference.
Access odvr.nic.cz with GreatFireVPN →2022first tested
1/1disrupted · last 90 days
2 mo agolast tested
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Frequently asked questions
Is https://odvr.nic.cz/doh blocked in mainland China right now?
As of the last test on 2026-06-10, https://odvr.nic.cz/doh is 100% disrupted in mainland China, based on GreatFire's live Great Firewall measurements.
Why is https://odvr.nic.cz/doh blocked in mainland China?
Access is unreliable — 100% of the last 1 conclusive tests showed interference.
Since when has https://odvr.nic.cz/doh been blocked?
GreatFire has recorded interference with https://odvr.nic.cz/doh from mainland China since 2022-05-09.
How can I access https://odvr.nic.cz/doh 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 odvr.nic.cz.
https://odvr.nic.cz/doh · JSON