Tracking domains - Network Instrument Points of Interest

pasta_paul

My iOS app does ask user's permission for ATT(App Tracking Transparency) and if given, displays some ads. But when i profile the app using instruments tool as suggested by Apple here to detect tracking domains, i see a blue circle with a "S" symbol inside it and not a red circlet for fault lines as per Apple's link. Do these 2 icons(blue with S symbol and the red circle) both indicate fault lines tracking domains? Can you please clarify this?...

Originally asked by iOSNinja on Stack Exchange (stackoverflow) (CC BY-SA 4.0).

uphilltech

Great question — answering as the UphillTech team:

Your screenshot looks as if you are recording all processes. Is that correct? If so, the Points of Interests instruments will include all kinds of Points of Interests from all processes across the system, e.g. in your screenshot there are some from assistantd which is one of the system processes. To reduce logging noise from other processes, make sure to target only your app's process. In general, the Points of Interests instrument can show any kind of log or signpost sent to the Points of Interests logging category. But by default, an app will rarely send any, unless you specifically add points of interest signposts or logs in your code. One of the cases where logs do get sent to the POI...

Full answer by Joachim Kurz: https://stackoverflow.stackexchange.com/a/78221033 (CC BY-SA 4.0).

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