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, Woopra 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, Arts & Entertainment, Marketing & Advertising, People & Society and 146 other categories.

2 Woopra is leading in Internet & Telecom, Computer & Electronics, Software, Photography and 76 other categories.


1 Woopra is leading in most countries, including Russia, United Kingdom, Brazil, Netherlands and 105 other countries.

2 Nielsen NetRatings is leading in Italy, United States, Bulgaria, Australia and 85 other countries.