Can you open ob3c.gl.grr.io/m3 from mainland China?
Sometimes.
Access is unreliable — 100% of the last 1 conclusive tests showed interference.
Access ob3c.gl.grr.io/m3 with GreatFireVPN →2015first tested
1/1disrupted · last 90 days
23 d agolast tested
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Frequently asked questions
Is ob3c.gl.grr.io/m3 blocked in mainland China right now?
As of the last test on 2026-07-07, ob3c.gl.grr.io/m3 is 100% disrupted in mainland China, based on GreatFire's live Great Firewall measurements.
Why is ob3c.gl.grr.io/m3 blocked in mainland China?
Access is unreliable — 100% of the last 1 conclusive tests showed interference.
Since when has ob3c.gl.grr.io/m3 been blocked?
GreatFire has recorded interference with ob3c.gl.grr.io/m3 from mainland China since 2015-07-05.
How can I access ob3c.gl.grr.io/m3 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 ob3c.gl.grr.io/m3.
http://ob3c.gl.grr.io/m3 · JSON