What is Ad Fill Rate and Should You Aim For 100%?
January 8, 2025
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Given the complexity of efficient ad-serving workflows and revenue optimization, leveraging priority listing in Prebid emerges as a strategic approach. This is particularly beneficial for publishers managing extensive inventory at scale.
Priority listing on Prebid lets you segregate demand sources, through which you can prioritize premium bidders over resellers or lower-value partners.
This is a great way of optimizing fill rates without compromising on quality! Moreover, this structured approach minimizes redundant bidding attempts, reduces latency, and ensures high-quality ads are delivered seamlessly.
Specifically in cases when publishers serve billions of impressions – the ability to prioritize is critical to maintaining the operation at scale, improving the user experience, or and driving revenue.
While Prebid provides basic prioritization tools, optimizing the ad-serving process is essential for achieving greater efficiency and flexibility. Before diving into the specifics of priority listing on Prebid, let’s take a step back and explore how ad serving works and how prioritization fits into the bigger picture.
Prebid allows you to prioritize certain demands while keeping the flexibility of open bidding. Here’s the process in action:
By using this approach, you can manage competing demand sources effectively and ensure that high-priority deals are given the best chance of success.
Prebid priority basically requires configuring your ad server, where you set out a list of demands over the other ones.
In this way you will be able to control your ad inventory and increase your monetary value stream by having an organized and prioritized Prebid list.
The Priority List on Prebid isn't just a tool for bidding management—it's a strategic framework that can significantly elevate your programmatic advertising. If you aim to optimize ad revenue and long-term engagement, the Priority List is essential.
By offering granular control over how bids are managed and prioritized, the Priority List ensures that your inventory is allocated with precision, aligning every impression with your business objectives.
Here's why this feature is a must-have for any high-performance header bidding setup:
Prebid's Priority List offers sophisticated control over which demand partners participate in your auctions, empowering you to optimize your inventory by ranking bidders based on performance, business goals, or other critical KPIs. This prioritization ensures that high-value partners get first access, maximizing potential revenue.
By directing bids from top-tier demand sources to the front of the queue, publishers can strategically allocate impressions to those with the highest value. This isn't just about getting the highest CPM—it’s about getting the right CPM, from the right partners, at the right time.
As user behavior evolves, so should your approach to monetization. For instance, users frequently transition between email and website content, often treating email as a menu for navigation. These brief but high-engagement sessions represent a prime opportunity for monetization, where first impressions are key.
The Priority List allows you to deliver the highest-value ads during these high-engagement moments, optimizing revenue without overhauling your existing setup.
By analyzing user behavior in real time, you as a publisher can make smart decisions about ad formats and placements.
Should ads refresh every 30 seconds to capture fleeting interest, or should you optimize for click-based interactions? The Priority List, combined with behavioral insights, ensures that your header bidding is always aligned with the most profitable opportunities, balancing short-term monetization with long-term engagement goals.
The Priority List on Prebid supports premium demand sources through Premium Priority Deals (PPD), emphasizing quality over sheer volume.
PPDs give top-tier partners direct access to premium inventory, ensuring that you aren’t simply maximizing bids but elevating the entire user experience by serving ads from trusted, high-quality brands.
With PPDs, you are not just optimizing for immediate revenue. You are aligning your monetization strategy with long-term brand integrity, ensuring that users are consistently served the most relevant and impactful ads.
The decline of third-party cookies has created challenges in tracking user behavior across websites. However, this shift opens up new opportunities for identity-based ad targeting.
Leverage first-party data and identity signals to help prioritize bids based on verified user information, allowing you to deliver more relevant ads to your audience.
By utilizing identity solutions effectively, publishers can prioritize bids from advertisers who can better match users' interests, thus improving engagement and maximizing revenue opportunities in a cookieless environment.
Traffic shaping through the Priority List enables publishers to prioritize high-value transactions by optimizing which ad requests are sent to which bidders.
By directly targeting the most impactful ad requests—based on historical performance, user engagement, and bid value—you can streamline the auction flow, and improve revenue generation along with operational efficiency.
In a high-performance bidding environment, reducing latency is critical. By structuring your Priority List on Prebid effectively, you can minimize unnecessary auction delays, speeding up the process and enhancing the user experience.
A more efficient bidding process not only boosts monetization potential but also helps reduce friction for users, keeping them engaged and encouraging more interactions with your site.
Scenario: In programmatic advertising, the sheer number of bidders participating in auctions can create inefficiencies. Without a priority mechanism, the system attempts to process all bidders equally, which may lead to delays or unoptimized bid selection.
Solution: A priority list in Prebid ensures that top-performing partners, such as Magnite, Amazon, or ADX, are evaluated first, streamlining the auction process. By processing high-performing partners first, publishers can reduce latency and improve the overall auction efficiency, particularly in environments with limited time for bid response.
Highlights:
Scenario: Dynamic floor pricing is a key component of modern programmatic auctions. By creating a priority list, publishers can ensure that dynamic floor adjustments are applied more effectively to high-value bidders like Amazon and Prebid partners.
Solution: Priority lists enable publishers to focus floor-setting strategies on partners capable of adjusting bids in real time, ensuring that dynamic pricing delivers maximum revenue impact. This structured approach prevents wasted opportunities and ensures competitiveness among bidders.
Highlights:
Scenario: In a holistic auction setup, multiple bidding environments (e.g., Prebid, Open Bidding, ADX) compete simultaneously for impressions. A priority list enables publishers to rank these environments based on historical performance metrics, ensuring optimal revenue outcomes.
Solution: However, ranking high-value bidders in priority buckets guarantees auctions do not compromise overall competition while favoring the best-demand sources. Programmatic and direct sell are the ways that many publishers separate their inventory; this approach is useful to distribute impressions properly.
Benefits:
It’s time to give your ad operations a competitive edge. Add the Priority List—whether within Prebid or as part of a broader holistic auction strategy—and take full control of your inventory today!