Leveraging our class-leading technology and unparalleled yield expertise, we tailor the Ideal Ad Stack for each of our partners to maximize revenue on every device. 

Your Ideal Ad Stack

Our custom approach integrates the perfect mix of client-side and server-side demand partners, ensuring your site’s monetization is optimized without unneeded latency. 

Industry experts and machine learning to maximize your revenue

The industry’s best yield experts will continuously work to optimize your site’s revenue with new products and demand sources. We help you with viewability, ad recovery, A/B testing and flex-size placements.

Robust, unified dashboard with real-time metrics

Monitor how well your ads are performing, and where your dollars are coming from. Easily access the data that’s most important to you with customizable dashboards. Integrate your Google Analytics data for a comprehensive view of site performance. Export your data from the UI or leverage the API for all your own custom reporting.

The ideal ad stack tailored just for your account

We have relationships with over 30 advertising partners and our own server-to-server demand ensures top advertising partners are bidding on your inventory. Some of our advertising relationships include OpenX, Sharethrough, Teads, District M, Facebook, Amazon, Xandr, EMX, Rubicon, YieldMo, and Google.

An innovative and evolving suite of ad products and features

Our market-leading header bidding platform unlocks new revenue. Our proprietary algorithms, extensive ad products, access to unique demand partners and viewability tools allow you to get the most out of each impression.

Lightweight, easy to install, with user experience in mind

Let our team do the heavy lifting. Our code is designed to reduce page latency and minimize impact to your users.

Grow your community with our Audience Development team

Our audience development team is here to help you attracting new users and engaging your current ones. Join a workshop or book 1:1 meetings to learn more about what you can do to grow your audience.


Providing the best solutions and products for our publishers.






Monthly Unique Users


By Comscore

Our Header Bidding Solutions are Tailored to Meet Your Goals


Our Professional header bidding solution is the best option for small to medium publishers looking for a fully managed service. Access all our products and features, exclusive workshops with our Audience Development team and so much more!


Have an existing ad ops team? Our Enterprise solution is best option for large publishers with an existing ad ops team and looking to scale their ad stack. This solution allows publishers a flexible implementation.


Don’t just take out word for it. Our publishers share their challenges and how we helped them overcome it.



Top 5 Ad Reports You Should Be Using To Study Your Data

It is no secret that there are a lot of different variables that you need to measure to ensure that your ad revenue is on track and optimized to drive your business forward. 


We Increased Al Jazeera’s RPM by 135%

Al Jazeera was only utilizing AdX, a few Prebid partners and had several tagged based direct campaigns. We decided to focus on three key areas to help grow their website monetization.


Explore All Our Available Ad Formats

Optimizing your website has never been easier with our suite of ad formats implemented and vetted by our expert team of yield managers. 

Ready To Work With Freestar?

Get in touch with one of our sales representatives and we’ll be on the road to success in no time at all!