Market Share by Top Websites

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

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

Websites Categories

1 TruEffect has better usage coverage in more websites categories. Including People & Society, News & Media, Business & Industry, Arts & Entertainment and 39 other categories.

2 Observer is leading in Computer & Electronics, Software, Marketing & Advertising, Photography and 9 other categories.


1 TruEffect is leading in most countries, including United States, Japan, Germany, Hungary and 18 other countries.

2 Observer is leading in Russia, China, Switzerland, Brazil and 6 other countries.