DoubleClick Floodlight
213,244 websites

DoubleClick Floodlight is free to use

http://www.google.com/doubleclick/

Floodlight is an optional feature in DFA that allows advertisers to capture and report on the actions of users who visit their website after viewing or clicking on one of the advertiser's ads. For the implementation of Floodlight, Floodligh...

VS

Quantcast
274,085 websites

Quantcast is free to use

http://www.quantcast.com/

Quantcast helps advertisers and publishers better understand, find and access targeted audiences in real-time. Marketers use Quantcast to amplify their targeting and reach consumers who look just like their best performing customers with un...

Market Share by Top Websites

1 Quantcast is leading in Top 100K Sites, Top 1M Sites and The Entire Web.

2 DoubleClick Floodlight is leading in Top 10K Sites.

Websites Categories

1 DoubleClick Floodlight has better usage coverage in more websites categories. Including Computers Electronics & Technology, Vehicles, Food & Drink, Finance and 9 other categories.

2 Quantcast is leading in Arts & Entertainment, Games, Science & Education, News & Media and 7 other categories.

Geography

1 Quantcast is leading in most countries, including United States, United Kingdom, France, Spain and 140 other countries.

2 DoubleClick Floodlight is leading in Japan, Canada, Australia, Russia and 16 other countries.