Analyze every website running prebid

See Plugins, Pageviews, Geo, and dozens more data points

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Built for publisher research


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Prebid Insights

Every prebid website, including modules, pageviews and geo.

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Weekly prebid updates

Track module adoption across all prebid websites

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Comprehensive publisher data

28 million websites tracked, every ad tag monitored

Did you know - Bidders

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The majority of websites running prebid have either have 4 or 10 bidders installed. Specifically, 39.7% of websites use 10 bidders, while 29.2% use 4 bidders. Our prebid data reports can provide you with a list of everything website matching your exact criteria.

A Red Volcano innovation

"Red Volcano’s Web Discovery Platform transformed our publisher acquisition strategy, providing instant insights and weekly updates."

Trade House Media

"Having used Red Volcano’s Web Discover Platform for years, we have come to trust both their reliability, and their unique understanding of the industry."

Did you know - Analytics

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Roxot and Magnite have acheived an impressive market share. Between them they are installed on nearly 40% of websites that are running prebid. These reports and data or 28 million websites are all available through Red Volcano.

Data Accuracy and Reliability

Access details of over 28 million publishers, filtered by Ad tag, Geo, IAB Category, Language, Page Views, and more. Weekly reports show publishers your competitors close or lose, keeping you informed on market activity.

Why Choose Web Discovery™ for Prebid Analytics?

Built for AdTech

By focusing solely on tools and data for the supply-side of adtech, we are able to offer a product that is tailored to your specific needs with more detailed and actionable insights than other tools on the market. Our data is updated weekly and all our accounts come with unlimited usage.

Web Discovery™

24 Million websites inside a single publisher research tool. Built from the ground up to help SSPs, Ad Networks, and Adservers to find publishers, includes ad tag data from our own custom crawlers, traffic data, contacts and full Ads.txt and Sellers.json tools.

Did you know - Prebid Versions

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Despite the widespread adoption of Prebid 8+, nearly 30% of all websites running prebid are still on verison 7.33. The latest data on prebid and 28 million other sites are available through Web Discovery ™.


Discover why 200+ Supply-Side businesses have chosen Web Discovery™