Market Share by Top Websites

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

2 Despite its recent growth, Blueknow is still behind Certona in all market share segments.

Websites Categories

1 Certona has better usage coverage in more websites categories. Including Shopping, Clothing, Business & Industry, Sports and 87 other categories.

2 Blueknow is leading in Consumer Electronics, Cycling & Biking, Bodyart, Agriculture & Forestry and 6 other categories.


1 Certona is leading in most countries, including United States, Canada, United Kingdom, France and 49 other countries.

2 Blueknow is leading in Spain, Italy, Andorra and Honduras.