====== Blocklists - Microsoft - Microsoft Windows ====== www.msftncsi.com # Windows uses this to verify connectivity to Internet. ---- Windows often trys to connect to these domains: * tlu.dl.delivery.mp.microsoft.com - Used to download operating system patches, updates, and apps from Microsoft Store. * fe3cr.delivery.mp.microsoft.com - Used to download operating system patches, updates, and apps from Microsoft Store. * settings-win.data.microsoft.com - Used for Windows apps to dynamically update their configuration. * ctldl.windowsupdate.com - Certificate Trust List. * slscr.update.microsoft.com - Windows update. * client.wns.windows.com - Used for the Windows Push Notification Service (WNS). * dns.msftncsi.com - Used to check if Windows is online. * ris.api.iris.microsoft.com - Used to retrieve Windows Spotlight metadata that describes content. * cxcs.microsoft.net - Microsoft customer experience center. * cdn.onenote.net - Microsoft OneNote. * arc.msn.com - Windows Spotlight. ---- ===== Windows Update ===== update.microsoft.com update.microsoft.com.akadns.net download.windowsupdate.com download.microsoft.com ---- sls.update.microsoft.com.akadns.net fe3.delivery.dsp.mp.microsoft.com.nsatc.net ---- ===== Windows 10 Updates ===== settings-win.data.microsoft.com 401 v10.vortex-win.data.microsoft.com ===== References ===== https://docs.microsoft.com/en-us/windows/privacy/windows-endpoints-20h2-non-enterprise-editions https://docs.microsoft.com/en-us/windows/privacy/windows-endpoints-1909-non-enterprise-editions https://docs.microsoft.com/en-us/windows/privacy/windows-endpoints-1809-non-enterprise-editions