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, W3Counter is clearly lagging behind, losing to Nielsen NetRatings in all segments.

Websites Categories

1 Nielsen NetRatings has better usage coverage in more websites categories. Including News & Media, Arts & Entertainment, Sports, Computers Electronics & Technology and 19 other categories.

2 W3Counter is leading in Adult.

Geography

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

2 W3Counter is leading in Iran, Algeria, Cambodia, Zimbabwe and 9 other countries.