Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2021
Feb. 28, 2022
Jun. 30, 2021
Document and Entity Information [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2021    
Document Transition Report false    
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 Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
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    
ICFR Auditor Attestation Flag false    
Entity Shell Company false    
Entity Public Float     $ 2,833,940,680
Entity Common Stock, Shares Outstanding   162,652,209  
Auditor Name DELOITTE & TOUCHE LLP    
Auditor Firm ID 34    
Auditor Location New York, New York    
Entity Central Index Key 0001819928    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Amendment Flag false