Can you open https://dooh.cloudflare-dns.com/cdn-cgi/trace from mainland China?
No.
No recent testsVerdict from 2026-05-14 · 4 mo ago
As of the last test on 2026-05-14 — 4 mo ago — it was blocked in mainland China. We haven't tested it since, so this may have changed.
Access dooh.cloudflare-dns.com with GreatFireVPN →Frequently asked questions
Is https://dooh.cloudflare-dns.com/cdn-cgi/trace blocked in mainland China right now?
We haven't tested https://dooh.cloudflare-dns.com/cdn-cgi/trace in the last 90 days. As of the last test on 2026-05-14 (4 mo ago), it was blocked in mainland China. Use the Test now button on this page for a fresh measurement.
Why is https://dooh.cloudflare-dns.com/cdn-cgi/trace blocked in mainland China?
As of the last test on 2026-05-14 — 4 mo ago — it was blocked in mainland China. We haven't tested it since, so this may have changed.
Since when has https://dooh.cloudflare-dns.com/cdn-cgi/trace been blocked?
GreatFire has recorded interference with https://dooh.cloudflare-dns.com/cdn-cgi/trace from mainland China since 2024-02-04.
How can I access https://dooh.cloudflare-dns.com/cdn-cgi/trace 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 dooh.cloudflare-dns.com.
https://dooh.cloudflare-dns.com/cdn-cgi/trace · JSON