January 20, 2015

Comscore Releases December 2014 U.S. Desktop Search Engine Rankings

RESTON, VA, January 20, 2015 – Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released its monthly Comscore qSearch™ analysis of the U.S. desktop search marketplace. Google Sites led the explicit core search market in December with 65.4 percent of search queries conducted.

U.S. Explicit Core Search
Google Sites led the U.S. explicit core search market in December with 65.4 percent market share, followed by Microsoft Sites with 19.7 percent (up 0.1 percentage points) and Yahoo Sites with 11.8 percent (up 1.6 percentage points). Ask Network accounted for 2 percent of explicit core searches, followed by AOL, Inc. with 1.2 percent.

Comscore Explicit Core Search Share Report* (Desktop Only)
December 2014 vs. November 2014
Total U.S. – Desktop Home & Work Locations
Source: Comscore qSearch

*“Explicit Core Search” excludes contextually driven searches that do not
reflect specific user intent to interact with the search results.

18.7 billion explicit core searches were conducted in December, with Google Sites ranking first with 12.2 billion (up 2 percent). Microsoft Sites ranked second with 3.7 billion searches (up 5 percent), followed by Yahoo Sites with 2.2 billion (up 21 percent), Ask Network with 372 million (up 5 percent) and AOL, Inc. with 222 million.

Comscore Explicit Core Search Query Report (Desktop Only)
December 2014 vs. November 2014
Total U.S. – Desktop Home & Work Locations
Source: Comscore qSearch

“Powered By” Reporting
In December, 66.5 percent of searches carried organic search results from Google, while 29.4 percent of searches were powered by Bing (up 1.4 percentage points).

About Comscore
Comscore, Inc. (NASDAQ: SCOR) is a global leader in digital measurement and analytics, delivering insights on web, mobile and TV consumer behavior that enable clients to maximize the value of their digital investments. For more information, please visit www.comscore.com/companyinfo.