Can you open https://ca-yyz.doh.sb/dns-query from mainland China?
No.
No recent testsVerdict from 2026-05-23 · 3 mo ago
As of the last test on 2026-05-23 — 3 mo ago — it was blocked in mainland China. We haven't tested it since, so this may have changed.
Access ca-yyz.doh.sb with GreatFireVPN →Frequently asked questions
Is https://ca-yyz.doh.sb/dns-query blocked in mainland China right now?
We haven't tested https://ca-yyz.doh.sb/dns-query in the last 90 days. As of the last test on 2026-05-23 (3 mo ago), it was blocked in mainland China. Use the Test now button on this page for a fresh measurement.
Why is https://ca-yyz.doh.sb/dns-query blocked in mainland China?
As of the last test on 2026-05-23 — 3 mo ago — it was blocked in mainland China. We haven't tested it since, so this may have changed.
Since when has https://ca-yyz.doh.sb/dns-query been blocked?
GreatFire has recorded interference with https://ca-yyz.doh.sb/dns-query from mainland China since 2022-05-09.
How can I access https://ca-yyz.doh.sb/dns-query 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 ca-yyz.doh.sb.
https://ca-yyz.doh.sb/dns-query · JSON