    <SEC-DOCUMENT>0001193125-23-267219-index.html : 20231031
    <SEC-HEADER>0001193125-23-267219.hdr.sgml : 20231031
    <ACCEPTANCE-DATETIME>20231031162059
    ACCESSION NUMBER:		0001193125-23-267219
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		3
    FILED AS OF DATE:		20231031
    DATE AS OF CHANGE:		20231031

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			COMSCORE, INC.
    		CENTRAL INDEX KEY:			0001158172
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-BUSINESS SERVICES, NEC [7389]
    		IRS NUMBER:				541955550
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-33520
    		FILM NUMBER:		231364794

    	BUSINESS ADDRESS:
    		STREET 1:		11950 DEMOCRACY DRIVE
    		STREET 2:		SUITE 600
    		CITY:			RESTON
    		STATE:			VA
    		ZIP:			20190
    		BUSINESS PHONE:		703-438-2000

    	MAIL ADDRESS:
    		STREET 1:		11950 DEMOCRACY DRIVE
    		STREET 2:		SUITE 600
    		CITY:			RESTON
    		STATE:			VA
    		ZIP:			20190

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	COMSCORE NETWORKS INC
    		DATE OF NAME CHANGE:	20010827
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>d519938ddefa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: d519938ddefa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g519938g26g26.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g519938g26g26.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g519938g27g27.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g519938g27g27.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>