# Activity history Tracking across Windows devices. # Also be used to fetch configuration data or updates for settings related to diagnostics and privacy: Settings > Privacy > Diagnostics & feedback # Also used for "Real User Monitoring" # Also used for Microsoft's advertising/tracking and content delivery services. # Also used for telemetry. # Also used for various Microsoft telemetry: https://github.com/microsoft/cpp_client_telemetry/blob/main/docs/EUDB-compliance.md # Breaks Microsoft "Quick Assist" utility (used for remote desktop assistance) # CNAME # CNAMES # Code: https://github.com/search?q=repo%3Amicrosoft%2Fcpp_client_telemetry%20mobile.events.data.microsoft.com&type=code # Error reports and analyses # Facebook lite app (messages/notifications), Instagram application settings (slow loading) # Facebook/Messenger App Android/iOS (Avatars) # Facebook/Messenger App Android/iOS (Comments, Messages) # Feedback & Diagnostics: Used to collect diagnostic information and logs for Microsoft Office products and to analyze problems. It is mainly used in support and troubleshooting processes. # Having this blocked presents a security issue if Defender cannot act on security threats in Windows. # Instagram App story videos # It's primarily used in connection with Windows Timeline, a feature introduced in Windows 10 that allows users to see a history of activities they've performed on their devices. # Leads to restrictions in the Azure portal (Application Insights data on the Azure portal), see: https://github.com/hagezi/dns-blocklists/issues/3621 # Microsoft 365 and Office: Blocking this domain could disrupt the ability to save documents to the cloud # Microsoft Defender for Endpoint (MDE) agents # Microsoft endpoint associated with the telemetry and diagnostic data collection in Windows operating systems. # Microsoft uses the following domains, which are also used for other telemetry data, to display and track earned Xbox Achievements. # Microsoft’s Application Insights, also used for "Real User Monitoring", see: https://github.com/hagezi/dns-blocklists/issues/4900 # OPTIONAL # Other Facebook functions, unblocking may not be needed # Slow loading of the top images (tiles) in the new Windows 11 App Store # There are reports that the SSO (AD) login of various Microsoft apps does not work on Android - could not be reproduced and confirmed so far: https://github.com/hagezi/dns-blocklists/issues/5118 # Unblock if you use Whatsapp avatar creator, helpcenter or video effects # Windows Spotlight/Search, XBox Gamepass Images/GPU Perks. # XBox Live Achievements # https://github.com/hagezi/dns-blocklists/issues/5252 # https://learn.microsoft.com/en-us/azure/azure-monitor/app/javascript-sdk?tabs=javascriptwebsdkloaderscript # https://learn.microsoft.com/en-us/deployedge/microsoft-edge-security-endpoints#feedback-and-diagnostics # or access recently used files and might hinder the performance of these Office applications. activity.windows.com api.diagnostics.office.com api.msa.diagnostics.office.com applicationinsights.io arc.msn.com arc.trafficmanager.net assets.activity.windows.com atm-settingsfe-prod-geo2.trafficmanager.net au-mobile.events.data.microsoft.com au-v10.events.data.microsoft.com au-v10c.events.data.microsoft.com au-v20.events.data.microsoft.com au.events.data.trafficmanager.net b-graph-fallback.facebook.com b-graph.facebook.com bat.bing.com canary.activity.windows.com cjs-diagnostics-office-com-gvdhgwfwbbfsd9g3.z01.azurefd.net cjs.diagnostics.office.com connect.facebook.com connect.facebook.net diagnostics.office.com edge-enterprise.activity.windows.com edge.activity.windows.com enterprise-eudb.activity.windows.com enterprise.activity.windows.com entitlement.diagnostics.office.com eu-mobile.events.data.microsoft.com eu-v10.events.data.microsoft.com eu-v10c.events.data.microsoft.com eu-v20.events.data.microsoft.com eu.events.data.trafficmanager.net graph-fallback.facebook.com graph.facebook.com graph.fbpigeon.com graph.whatsapp.com graph.whatsapp.net in-mobile.events.data.microsoft.com in-v20.events.data.microsoft.com in.appcenter.ms in.events.data.trafficmanager.net incidents.diagnostics.office.com jp-mobile.events.data.microsoft.com jp-v10.events.data.microsoft.com jp-v10c.events.data.microsoft.com jp-v20.events.data.microsoft.com jp.events.data.trafficmanager.net js.monitor.azure.com loganalytics.io logging.diagnostics.office.com mobile.events.data.microsoft.com mobile.events.data.trafficmanager.net mqtt-mini.facebook.com msa.diagnostics.office.com ppe.activity.windows.com self-events-data.trafficmanager.net self.events.data.microsoft.com settings-sandbox.data.microsoft.com settings-win-ppe.data.microsoft.com settings-win.data.microsoft.com settings.data.microsoft.com settingsfd-ppe.trafficmanager.net settingsfd-sandbox.trafficmanager.net supportexperience.diagnostics.office.com uk-mobile.events.data.microsoft.com uk-v20.events.data.microsoft.com uk.events.data.trafficmanager.net us-mobile.events.data.microsoft.com us-v10.events.data.microsoft.com us-v10c.events.data.microsoft.com us-v20.events.data.microsoft.com us.events.data.trafficmanager.net us4-v20.events.data.microsoft.com us5-v20.events.data.microsoft.com v10.events.data.microsoft.com v10c.events.data.microsoft.com v20.events.data.microsoft.com web-fallback.facebook.com web.facebook.com win-global-asimov-leafs-events-data.trafficmanager.net z-m-graph.facebook.com