Market Share by Top Websites

1 Usablenet is leading in Top 100K Sites and Top 1M Sites.

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

Websites Categories

1 Observer has better usage coverage in more websites categories. Including Business & Industry, Computer & Electronics, Arts & Entertainment, Internet & Telecom and 21 other categories.

2 Usablenet is leading in Shopping, Clothing, Sports, Autos & Vehicles and 18 other categories.


1 Observer is leading in most countries, including Russia, Canada, Netherlands, France and 8 other countries.

2 Usablenet is leading in United States, United Kingdom, Spain, Chile and 6 other countries.