Integral Ad Science, the New York-based tech company that describes itself as  “the leader in quantifying digital media quality” has raised $67 million: $27 million in venture funding from Sapphire Ventures and $40 million in debt financing from Silicon Valley Bank.

In this previously published video, company CEO Scott Knoll talks about  how the company identifies various forms of ad fraud including non-human ad impressions.

More on today’s news reported in the Wall Street Journal.