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, Sports and 93 other categories.

2 Blueknow is leading in Consumer Electronics, Cycling & Biking, Bodyart, Photography and 5 other categories.


1 Certona is leading in most countries, including United States, Canada, Great Britain, Germany and 61 other countries.

2 Blueknow is leading in Spain, Italy, Brazil, Algeria and one other country.