Market Share by Top Websites

1 Topsy is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Vizu is clearly lagging behind, losing to Topsy in all segments.

Websites Categories

1 Topsy has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, Business & Industry, Internet & Telecom and 183 other categories.

2 Vizu is leading in Technology News, Celebrities & Entertainment News, Board & Card Games and Philanthropy.


1 Topsy is leading in most countries, including Russia, Japan, United States, Brazil and 99 other countries.

2 Vizu is leading in New Zealand.