Robert Davis Noell Form 4 DoubleVerify / Robert Davis Noell ownership change

POWER OF ATTORNEY


Know all by these presents, that the undersigned hereby makes, constitutes and
appoints each of Sarah N. Conde, Lucy Dobrin and Marc G. Puglia, and each of
them individually, the undersigned's true and lawful attorney-in-fact, with full
power and authority as hereinafter described on behalf of and in the name, place
and stead of the undersigned to:
(1)	prepare, execute, acknowledge, deliver and file (a) Forms 3, 4 and 5
(including any amendments thereto) with respect to the securities of
DoubleVerify Holdings, Inc. (the "Company"), with the United States Securities
and Exchange Commission and any national securities exchanges or similar
authority, as considered necessary or advisable under Section 16(a) of the
Securities Exchange Act of 1934 and the rules and regulations promulgated
thereunder, as amended from time to time (the "Exchange Act") and (b) any and
all schedules (including any amendments thereto) relating to the securities of
the Company required to be filed in accordance with Section 13(d) of the
Exchange Act and the rules thereunder (together, the "Forms and Schedules");
(2)	do and perform any and all acts for and on behalf of the undersigned which
may be necessary or desirable to complete and execute any such Forms and
Schedules, complete and execute any amendment or amendments thereto, and timely
file such Forms and Schedules with the United States Securities and Exchange
Commission and any stock exchange or similar authority; and
(3)	take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of each such attorney-in-fact, may be of benefit
to, in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by each such attorney-in-fact on behalf
of the undersigned pursuant to this Power of Attorney shall be in such form and
shall contain such terms and conditions as he or she may approve in his or her
discretion.
The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that each such attorney-in-fact, or his or
her substitute or substitutes, shall lawfully do or cause to be done by virtue
of this Power of Attorney and the rights and powers herein granted.  The
undersigned acknowledges that each such attorney-in-fact is serving in such
capacity at the request of the undersigned, and is not assuming, nor is the
Company assuming, any of the undersigned's responsibilities to comply with
Section 16 or Section 13 of the Exchange Act.
The Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file any Forms and Schedules with respect
to the undersigned's holdings of and transactions in securities issued by the
Company, unless earlier revoked by the undersigned in a signed writing delivered
to each such attorney-in-fact.
[Signature Page Follows]

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 17th day of April, 2021.


/s/ Jonathan M. Nelson
Name: Jonathan M. Nelson


/s/ Robert Davis Noell
Name: Robert Davis Noell

/s/ J. David Phillips
Name: J. David Phillips

/s/ Karim A. Tabet
Name: Karim A. Tabet


/s/ Andrew A. Tisdale
Name: Andrew A. Tisdale


/s/ Michael J. Dominguez
Name: Michael J. Dominguez