Market Share by Top Websites

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

2 In terms of market share, Quantcast Widget is clearly lagging behind, losing to OpinionLab in all segments.

Websites Categories

1 OpinionLab has better usage coverage in more websites categories. Including Finance, Computers Electronics & Technology, Travel & Tourism, Lifestyle and 13 other categories.

2 Quantcast Widget is leading in Reference Materials, Community & Society, Hobbies & Leisure, Law & Government and one other category.


1 OpinionLab is leading in most countries, including United States, Canada, United Kingdom, India and 42 other countries.

2 Quantcast Widget is leading in Israel, Bermuda, Costa Rica, Hong Kong and 4 other countries.