Is 55.port25.biz/go/5v blocked in mainland China?

Can you open 55.port25.biz/go/5v from mainland China?

N/A.

This domain doesn't resolve anywhere we test — including our control outside mainland China — so it appears inactive or unregistered rather than blocked.

2014first tested

4 mo agolast tested

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Other tested URLs on port25.biz

Each verdict covers the last 90 days of tests, as on that URL's own page.

Frequently asked questions

Is 55.port25.biz/go/5v blocked in mainland China right now?

As of the last test on 2026-04-01, 55.port25.biz/go/5v is not resolvable from anywhere we test in mainland China, based on GreatFire's live Great Firewall measurements.

http://55.port25.biz/go/5v · JSON