Market Share by Top Websites

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

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

Websites Categories

1 Mediaplex has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Business & Industry, Shopping and 208 other categories.

2 Tailsweep is leading in Marketing & Advertising, Science, Social Sciences, Fashion & Modeling and 5 other categories.

Geography

1 Mediaplex is leading in most countries, including United States, United Kingdom, France, Germany and 138 other countries.

2 Tailsweep is leading in Sweden, Finland and Malta.