Market Share by Top Websites

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

2 In terms of market share, ClustrMaps is clearly lagging behind, losing to Nielsen NetRatings in all segments.

Websites Categories

1 ClustrMaps has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, Religion & Spirituality, Computer & Electronics and 118 other categories.

2 Nielsen NetRatings is leading in Business & Industry, News & Media, Marketing & Advertising, Sports and 93 other categories.


1 ClustrMaps is leading in most countries, including Russia, Indonesia, Brazil, Spain and 133 other countries.

2 Nielsen NetRatings is leading in Italy, United States, Australia, United Kingdom and 42 other countries.