Is http://cm5-ams1.cm.steampowered.com:443 blocked in mainland China?

Part of steampowered.comMixed193 tested URLs

Can you open http://cm5-ams1.cm.steampowered.com:443 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.

2022first tested

3 mo agolast tested

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Other tested URLs on steampowered.com

Mixed63 blocked78 disrupted40 accessible12 no verdictAll 193 tested URLs on steampowered.com →

Blocking varies across steampowered.com: 63 blocked vs 40 accessible among tested hosts.

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

Frequently asked questions

Is http://cm5-ams1.cm.steampowered.com:443 blocked in mainland China right now?

As of the last test on 2026-07-02, http://cm5-ams1.cm.steampowered.com:443 is not resolvable from anywhere we test in mainland China, based on GreatFire's live Great Firewall measurements.

http://cm5-ams1.cm.steampowered.com:443 · JSON