Quarterly report pursuant to Section 13 or 15(d)

Description of Business (Details)

v3.21.2
Description of Business (Details) - segment
9 Months Ended
Sep. 30, 2021
Aug. 18, 2017
Description of Business    
Number of reportable segments 1  
DoubleVerify Inc.    
Description of Business    
Ownership percentage acquired   100.00%