Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v3.21.2
Document and Entity Information - shares
 9 Months Ended
Sep. 30, 2021
Nov. 05, 2021
Document and Entity Information [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Sep. 30, 2021  
Entity File Number 001-40349  
Entity Registrant Name DoubleVerify Holdings, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 82-2714562  
Entity Address, Address Line One 233 Spring Street  
Entity Address, City or Town New York  
Entity Address State Or Province NY  
Entity Address, Postal Zip Code 10013  
City Area Code 212  
Local Phone Number 631-2111  
Title of 12(b) Security Common Stock, par value $0.001 per share  
Trading Symbol DV  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   158,638,068
Entity Central Index Key 0001819928  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q3  
Amendment Flag false