Market Share by Top Websites

1 Certona is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Blueknow is clearly lagging behind, losing to Certona in all segments.

Websites Categories

1 Certona has better usage coverage in more websites categories. Including Shopping, Clothing, Business & Industry, Beauty & Fitness and 61 other categories.

2 Blueknow is leading in Consumer Electronics, Cycling & Biking, Motorcycles, Fitness and 10 other categories.


1 Certona is leading in most countries, including United States, Canada, United Kingdom, France and 52 other countries.

2 Blueknow is leading in Spain, Italy, Costa Rica, Andorra and one other country.