Get Real Time Revenue Data From Your Header Bidding Today!

37x is a new and easy way to view your real time earnings from your header stack for your desktop and mobile web visitors. Find your most profitable content and maximise revenues today.

Try It Now For FREE

No credit card required — Get started in seconds.

What are the benefits of using 37x?

Instantly See What’s Hot And What’s Not.

No more guessing what you’re making from Header Bidding.

tracking Real Time Session Tracking

Maximise traffic to your higher performing content, increasing your yield and ROI. By tracking detailed user session data, our real-time analytics provides an accurate Revenue per Session for every article visited. Armed with this data, you can optimize your ad spend and maximise your ROI.

query-ui In-depth Insights

37x offers an insane amount of metrics and filters provide deep actionable data for your websites. With the ability to filter by timeframes, sources, countries and devices. Our easy-to-use interface allows you to immediately target high performing content.

multi-user Analyze User Impact

Find the biggest opportunities for maximising revenue and ROI from your content.

universal-integration Universal solution

37x is available to any site running header bidding via Prebid.js. We also integrate with a number of leading header bidding wrappers. Integrating our tracker is as simple as pasting a script tag in any site you wish to track.

The Old Way

Log in to all ad networks

Collect Average CPM data (Often 4 - 8 hours delayed)


Work out estimated CPM and revenue per session

Adjust traffic bids

The New Way

Try It Now For FREE

No credit card required — Get started in seconds.