Top Sites

As a data-driven company, we've become well-known for our Top Ranked Sites list, which by default, ranks top U.S. websites by monthly visitors. Switch countries to get a different perspective.

For sites that use Quantcast Measure, you can click through for an in-depth view of their audience data and insights.

Data Insights

Audience data drives our storytelling as well. The posts below demonstrate what you can learn when you take a closer look at your audience.

Harness the real-time pulse of the open Internet

Since 2006, we’ve been building Q - the world’s largest AI-driven audience behavior platform for the open Internet that today directly quantifies over 100 million mobile and web destinations. Comprised of Internet-scale 1st party data, self-adapting predictive models and integrated AI optimization, Q’s collection of machine learning technologies continually interprets the consumer behavior graph giving brands a real-time pulse of the Internet.


million mobile and web destinations use Quantcast to understand their audience

Look Up Public Audience Data

Explore Recently Quantified Sites

10 Yelp icon 70,313,504 Quantcast Q
13 Buzzfeed icon 56,426,004 Quantcast Q
18 wikia icon 42,644,684 Quantcast Q
24 Giphy icon 32,424,136 Quantcast Q
25 Quizlet icon 31,588,318 Quantcast Q