Next to a candidate's email address or phone number there are icons that depict what kind of contact info we found.
Categories of contact information
H: home phone number
P: personal email address
W: work phone number, business email address, or work fax number
M: cell phone number
O: not enough information to categorize
You can just hover your mouse over an address or number to see when the contact info was first and last seen, if available.
Green check mark
We only show contact info that we believe to be valid. A green check mark next to an email is an extra level of verification. This indicates that our data provider has contacted the receiving mail server, and the mail server has confirmed that the address is valid.