Search for the person’s username in Instagram
Check whether their profile appears in search results
Open any old DM conversation with them
See if their profile photo, posts, or follower count are visible
Try visiting their profile from a browser while logged out
Ask a mutual friend to search for their account
Check whether you can tag or mention their username
See if their comments or likes on your posts are still visible
Look for “User not found” or “No posts yet” on their profile
Compare results from a second Instagram account if you have one