Market Share by Top Websites

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

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

Websites Categories

1 Quantcast has better usage coverage in more websites categories. Including Arts & Entertainment, Games, Science & Education, Computers Electronics & Technology and 15 other categories.

2 Trustpilot is leading in Lifestyle, Finance, Home & Garden, Business & Consumer Services and one other category.


1 Quantcast is leading in most countries, including United States, Japan, Spain, Canada and 130 other countries.

2 Trustpilot is leading in United Kingdom, Italy, France, Germany and 25 other countries.