Check whether they have public profiles on dating apps by searching their name, photos, usernames, or linked social accounts
Look for the same profile photos, bio phrases, or handles across social media and dating platforms
Search their email address, phone number, or username in app-related account recovery or search features where available
Review mutual friends’ activity only if they have openly shared seeing the person on an app
Use reverse image search on profile photos to see if they appear on dating profiles
Check app-specific web profile pages if the platform makes them publicly accessible
Ask the person directly
Respect privacy and avoid using deceptive methods, fake accounts, or unauthorized access