: Many websites asking for a profile URL eventually redirect users to a login page. Entering your own Facebook credentials on these sites can lead to your account being hacked.
Using unofficial tools to "peek" into private accounts carries significant security and privacy risks for the person attempting to use them: facebook private profile viewer by istaunch full
Instead of relying on potentially dangerous tools, there are safer, more ethical ways to find information related to a private profile: : Many websites asking for a profile URL
Is there a way to see who viewed my profile on Facebook? - Sotrender there are safer