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, Business & Industry, Arts & Entertainment, Health and 173 other categories.

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


1 Topsy is leading in most countries, including Russia, United States, Japan, Brazil and 95 other countries.

2 Vizu is leading in Bosnia.