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 Lifestyle, Sports, E-commerce & Shopping, Home & Garden and 17 other categories.

2 Blueknow is leading in Hobbies & Leisure and Travel & Tourism.


1 Certona is leading in most countries, including United States, Canada, Germany, Japan and 55 other countries.

2 Blueknow is leading in Spain, Italy and Guatemala.