Can you open mozilla.cloudflare-dns.com/cdn-cgi/trace from mainland China?
Sometimes.
No recent testsVerdict from 2026-02-07 · 6 mo ago
As of the last test on 2026-02-07 — 6 mo ago — it was partly disrupted in mainland China. We haven't tested it since, so this may have changed.
Access mozilla.cloudflare-dns.com/cdn-cgi/trace with GreatFireVPN →Frequently asked questions
Is mozilla.cloudflare-dns.com/cdn-cgi/trace blocked in mainland China right now?
We haven't tested mozilla.cloudflare-dns.com/cdn-cgi/trace in the last 90 days. As of the last test on 2026-02-07 (6 mo ago), it was partly disrupted in mainland China. Use the Test now button on this page for a fresh measurement.
Why is mozilla.cloudflare-dns.com/cdn-cgi/trace blocked in mainland China?
As of the last test on 2026-02-07 — 6 mo ago — it was partly disrupted in mainland China. We haven't tested it since, so this may have changed.
Since when has mozilla.cloudflare-dns.com/cdn-cgi/trace been blocked?
GreatFire has recorded interference with mozilla.cloudflare-dns.com/cdn-cgi/trace from mainland China since 2022-08-16.
How can I access mozilla.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 mozilla.cloudflare-dns.com/cdn-cgi/trace.
https://mozilla.cloudflare-dns.com/cdn-cgi/trace · JSON