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 Despite its recent growth, Act-On is still behind Nielsen NetRatings in all market share segments.

Websites Categories

1 Nielsen NetRatings has better usage coverage in more websites categories. Including Business & Industry, Marketing & Advertising, Arts & Entertainment, People & Society and 210 other categories.

2 Act-On is leading in Business Services, Insurance, Computer Hardware, Consumer Electronics and 12 other categories.

Geography

1 Nielsen NetRatings is leading in most countries, including Italy, United States, Australia, Spain and 151 other countries.

2 Act-On is leading in Angola, Botswana, Chad, Lesotho and 3 other countries.