The Best Ad Exchanges List for Publishers

In today's digital landscape, ad exchanges have become an essential tool for publishers looking to monetize their website traffic. By connecting publishers with advertisers, ad exchanges make it easy to sell ad inventory and generate revenue. However, with so many ad exchanges on the market, knowing which one to choose can be challenging. In this listing, we will explore the best ad exchanges for publishers and guide on selecting the right one for your needs.

Ad exchanges are digital marketplaces that allow publishers to sell ad inventory to advertisers in real-time. Advertisers can bid on the ad inventory using a real-time bidding (RTB) process, enabling them to target specific audiences and optimize their campaigns. Ad exchanges typically take a commission on each transaction and provide publishers with tools to manage their ad inventory, track performance, and optimize their revenue. Here are some of the major ad exchange types. Also note that most of the best ad exchanges work with DSPs, SSPs, and premium publishers. 

  • Open Ad Exchanges: Open ad exchanges are public, real-time bidding (RTB) marketplaces where various advertisers and publishers buy and sell ad impressions. These exchanges are open to any interested party, and bidding is typically competitive.
  • Private Ad Exchanges (Private Marketplaces): Private ad exchanges are invitation-only or exclusive marketplaces where a limited number of advertisers and publishers transact. Premium publishers often use these to maintain more control over the ads that appear on their websites.
  • Video Ad Exchanges: Video ad exchanges are designed to buy and sell video ad inventory. This type of exchange is essential for video advertising campaigns, including pre-roll and in-stream video ads. 
  • Native Ad Exchanges: Native ad exchanges focus on native advertising formats, such as sponsored content and in-feed ads. They enable advertisers to seamlessly integrate their ads with the content on publishers' websites or apps. 
  • Programmatic Direct Exchanges: Programmatic direct exchanges bridge the gap between programmatic and direct sales. They allow advertisers to programmatically reserve ad inventory directly from publishers, ensuring guaranteed impressions without manual negotiations.

How to Choose the Best Ad Exchanges?

As a publisher, you must have several web properties and millions of page views to be accepted by ad exchanges. Most ad exchanges work directly with premium publishers only. When choosing an ad exchange, there are several factors to consider:

  • Reach: The ad exchange should have a large number of advertisers and publishers to ensure that there are plenty of opportunities to sell and buy ad inventory.
  • Targeting Options: The ad exchange should offer a range of targeting options, such as demographics, interests, and location, to allow advertisers to target their audience effectively. This will ensure better ad conversions and higher revenue for publishers. 
  • Regional Demand: The ad exchange should have enough demand from the advertisers to ensure a high fill rate on publisher inventory. 
  • User Experience: The ad exchange should have a user-friendly interface, optimized bid requests,  and provide easy access to reporting and analytics.
  • Commission Fees: The ad exchange should have reasonable commission fees to maximise publishers' revenue. This is usually in the range of 10-30%.
  • Support: The ad exchange should provide good customer support to help publishers resolve any issues quickly and efficiently.

Leading ad technology provider ExoClick offers publishers and advertisers possibilities to monetize content. It functions both as an ad network and as an ad exchange. Along with working with other DSPs and advertising networks, ExoClick's Ad Exchange technology aids publishers in monetizing their traffic within ExoClick's ad network.

The Real-Time Buying (RTB) CPM network Sovrn enables you to serve advertisements. It functions similarly to an exchange where you first "announce" or make your current ad inventory available, allowing the advertisers to adjust their bids to obtain your ad inventories.

OpenX stands out in the ad exchange landscape, connecting over 30,000 advertisers to nearly one billion consumers globally. Processing more than one trillion transactions daily, OpenX's platform offers advanced technology like header bidding, optimizing ad placements and maximizing revenue for publishers. This extensive reach and technological innovation make OpenX a top choice for effective digital advertising solutions. What sets OpenX apart is its commitment to transparency and efficiency. The platform provides comprehensive analytics and real-time reporting, enabling advertisers to fine-tune their campaigns for maximum impact. Additionally, OpenX’s marketplace offers high-quality, brand-safe ad inventory, ensuring that advertisers can reach their target audience in the most effective and secure way. This combination of reach, innovation, and quality makes OpenX a standout in the ad exchange ecosystem.

TrafficStars stands out as a top-tier ad exchange platform, celebrated for its advanced targeting capabilities and seamless campaign setup. With a staggering 7 billion daily impressions, it supports a wide array of ad formats such as banners, native ads, video pre-rolls, and popunders. This versatility empowers advertisers to finely tune their campaigns, boosting engagement and maximizing returns. TrafficStars intuitive interface is designed to simplify the ad creation process for users of all levels. Alongside this ease of use, the platform offers dedicated support through personal account managers and extensive resources. This ensures that advertisers and publishers can navigate effectively, driving successful outcomes.

Connatix, a leading video technology company, is transforming the ad exchange landscape with its innovative solutions. Their dynamic ad exchange platform leverages advanced AI and machine learning algorithms to optimize video ad placements, resulting in a 50% increase in user engagement and a 30% boost in ad revenue for publishers. With a robust network connecting premium publishers and advertisers, Connatix ensures high-quality, contextually relevant video content that captivates audiences. In 2023-24, Connatix's platform handled over 3 billion video ad requests monthly, showcasing its scalability and efficiency. Their focus on transparency and performance metrics allows advertisers to achieve better ROI, while publishers benefit from higher fill rates and CPMs.

Newor Media is a professional ad management solution that helps publishers maximize their website’s earnings with AI. 

Index Exchange is a leading ad exchange platform, processing over half a trillion transactions daily. Known for its advanced machine learning and transparent operations, Index Exchange ensures optimized ad placements and high-quality performance for publishers and advertisers. Their innovative infrastructure has tripled throughput while cutting electricity usage in half, highlighting their commitment to efficiency and sustainability. Index Exchange excels in supporting modern ad formats like outstream video ads, which have proven highly effective. For example, A large organization achieved an 86% view-through rate and a 47% higher CPM with Index Exchange's outstream ads compared to traditional banners. This demonstrates Index Exchange’s ability to drive engagement and revenue, making it a top choice for programmatic advertising solutions.



ReklamUp is a global Google MCM partner specializing in Google AdX and Google Ad Manager services. They focus on increasing the revenue of mobile apps and games by utilizing various ad models, including banners, native ads, video, interstitials, rewarded videos, outstream, in-read, in-app, and display ads. As a Google Ad Exchange (AdX) and Ad Manager partner, ReklamUp offers comprehensive solutions for managing and optimizing ad inventory. 



iSearch, Taiwan's top Google Certified Publishing Partner (GCPP), excels in leveraging Google's tools and technologies to optimize ad performance. With extensive experience and official Google support, iSearch customizes ad styles and placements, providing professional optimization services and benefit analysis to maximize website revenue.



OpsCo, a leader in ad exchanges it leverages advanced technology to offer seamless real-time auctions, ensuring publishers get optimal CPM rates. The platform processes billions of ad impressions daily, optimizing ad placements through advanced algorithms that enhance campaign performance and maximize ROI. OpsCo's ad exchange benefits both advertisers and publishers by offering transparency, detailed performance metrics, and fraud prevention measures. This competitive marketplace ensures that publishers get the best price for their ad space while advertisers achieve optimal reach and engagement.

More Information on Best Ad Exchanges

Here are some more points to consider about the importance and usage of ad exchanges:

  • Ad exchanges use real-time bidding (RTB) to sell ad inventory, which allows advertisers to bid on ad space in real-time based on specific targeting criteria, increasing the likelihood that ads will be shown to the right audience.
  • Ad exchanges offer tools and controls to filter out low-quality or irrelevant ads, helping publishers maintain a positive user experience.
  • Ad exchanges offer ad verification services to ensure that ads comply with industry standards, are brand-safe, and do not contain malicious content.
  • Publishers should review the payment terms of ad exchanges, including payment schedules and minimum payout thresholds, to ensure that they align with their financial needs.

Ad Exchange CPM Rates for Tier-1, Tier-2, Tier-3 Countries

Cost Per Mille (CPM) rates offered by ad exchanges can vary widely depending on several factors, including the country's tier or level of development, the industry, the ad network or exchange used, the quality and targeting of the ad inventory, and market demand. Tier one, tier two, and tier three countries are often classified based on their economic development and ad market maturity. Here's a general idea of what to expect, but keep in mind that these rates can change over time:

  • Tier One Countries: Tier one countries include the United States, Canada, the United Kingdom, Germany, Australia, and others.
    CPM rates in tier-one countries tend to be the highest, ranging from $1 to $10 or even more, depending on factors like niche, ad format, and targeting.
  • Tier Two Countries: Tier two countries often encompass nations in Eastern Europe, Latin America, parts of Asia, and more. CPM rates in tier two countries typically range from $0.40 to $4. These rates can vary significantly based on the country and other factors.
  • Tier Three Countries: Tier three countries comprise regions with emerging economies and lower ad market maturity. These may include parts of Africa, certain Asian countries, and others. CPM rates in tier-three countries are generally lower, ranging from $0.10 to $1. Again, the rates can vary considerably based on the specific country.

Remember that these are very general estimates, and actual CPM rates can fluctuate based on the factors mentioned earlier. To get accurate and up-to-date CPM rates for your specific situation, it's essential to work with ad networks, exchanges, or demand-side platforms (DSPs) directly. They can provide insights into the current rates and opportunities for your target audience and ad inventory. Additionally, consider using ad optimization and yield management techniques to maximize your CPM rates in any country or region.

Frequently Asked Questions

Yes, most ad exchanges provide tools for publishers to control the ads that appear on their website, including the ability to block specific advertisers or categories of ads.

Yes, many publishers use multiple ad exchanges to maximize their revenue and access a wider pool of advertisers.

Ad exchanges typically take a commission of between 10% and 20% on each transaction.