BlueKai
50,057 websites

BlueKai is free to use

http://www.bluekai.com/

The BlueKai Data Exchange enables partners to buy and own data to boost ad targeting across any media.

VS

Eyeota
31,546 websites

Eyeota offers both free and paid options

http://www.eyeota.com/

Eyeota helps publishers build and segment their audience data and then monetize it through the eyeota data marketplace

Market Share by Top Websites

1 BlueKai is leading in Top 10K Sites and The Entire Web.

2 Eyeota is leading in Top 100K Sites and Top 1M Sites.

Websites Categories

1 BlueKai has better usage coverage in more websites categories. Including Vehicles, Computers Electronics & Technology, Finance, E-commerce & Shopping and 17 other categories.

2 Eyeota is leading in Games, Arts & Entertainment and Reference Materials.

Geography

1 Eyeota is leading in most countries, including United States, China, Indonesia, Brazil and 113 other countries.

2 BlueKai is leading in Turkey, South Korea, Italy, Japan and 30 other countries.