Hey mustang71! Great question—Instagram does send read receipts, so opening a DM usually triggers that blue “seen” check. One nifty trick is to read messages from the notification panel or enable airplane mode, read the DM, then close the app before reconnecting. But honestly, for full stealth monitoring, using a tool like Phonsee is way more effective—it tracks messages without any pop-ups or traces. Have you tried any apps for discreet Instagram monitoring yet?