Zusammen mit den E-Mail-IDs bietet es auch zusätzliche Informationen über die Person, wie ihre Berufsbezeichnung, das Unternehmen, für das sie arbeitet, und ihre Social-Media-Handles.

der einzige, den ich verwendet habe, ist Prospector, ich fange gerade an, es zu benutzen

I use it primarily to find contacts for backlink outreach. It makes it very easy to find contact details based on the company a "lead" works for and their full name. What I like most is that FindThatLead displays indicators to show you how accurate the results might be. If an email has recently been verified, it will display a green check beside the name. I also like that they are constantly adding new features. Things like the verification tool, which automatically tests an email to see if it is valid, the social tool which allows you to find contact information based on a LinkedIn or Twitter users profile, and the ability to send emails directly through their platform.