Is https://www.testconnectivity.microsoft.com?testid=O365LyncDns blocked in mainland China?

Part of microsoft.comMixed403 tested URLs

Can you open https://www.testconnectivity.microsoft.com?testid=O365LyncDns from mainland China?

Yes.

No recent testsVerdict from 2026-04-24 · 5 mo ago

As of the last test on 2026-04-24 — 5 mo ago — it was reachable in mainland China. We haven't tested it since, so this may have changed.

2016first tested

5 mo agolast tested

Loading…

Other tested URLs on microsoft.com

Mixed22 blocked78 disrupted271 accessible32 no verdictAll 403 tested URLs on microsoft.com →

Blocking varies across microsoft.com: 22 blocked vs 271 accessible among tested hosts.

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

Frequently asked questions

Is https://www.testconnectivity.microsoft.com?testid=O365LyncDns blocked in mainland China right now?

We haven't tested https://www.testconnectivity.microsoft.com?testid=O365LyncDns in the last 90 days. As of the last test on 2026-04-24 (5 mo ago), it was reachable in mainland China. Use the Test now button on this page for a fresh measurement.

https://www.testconnectivity.microsoft.com?testid=O365LyncDns · JSON