If the dummy account has a unique username in the URL, type it into a search engine.
Investigators may use tools like Grabify to create a tracking link. If the suspect clicks the link, their IP address, location, and device details are logged.
If the account is sending threats, extorting you, or engaging in harassment, document everything. Take screenshots of the profile, posts, and messages.
If you want to dive deeper into this investigation, tell me:
: If the account is a Page rather than a personal profile, click the tab and then Page Transparency