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, Opentracker 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 219 other categories.

2 Opentracker is leading in Flowers, Insurance, Birds and Child Health.

Geography

1 Nielsen NetRatings is leading in most countries, including Italy, United States, Bulgaria, Australia and 173 other countries.

2 Opentracker is leading in Antigua And Barbuda, Oman, Saint Vincent And The Grenadines, Belize and 4 other countries.