Cool product, but do have some things I feel should be called out. This is not free as you the marketer are exchanging your customers first party data for this service from clearbit. If you review the tos/privacy policy you will see these terms in place. Given the growing concerns around privacy, and positions taken by google, apple and other around notice, choice, consent, and use of cookies and other anonymous identifiers I think Clearbit is not being a good steward here as it's not clear or transparent that it's a value exchange agreement, and not a freebie. Believe I'd rather pay a nominal fee for similar/better service, than give away my most valuable asset, and also breach my customers trust.