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, Prudsys 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 226 other categories.

2 Prudsys is leading in General Merchandise, Book Retailers and E-Books.


1 Nielsen NetRatings is leading in most countries, including Italy, United States, Australia, Spain and 165 other countries.

2 Prudsys hasn't got a lead over Nielsen NetRatings in any country.