Programmatic Advertising Explained: How It Works, Types & Formats

Staying relevant in marketing means staying up to date with the latest industry technologies. We’re discussing advertising technology, specifically programmatic advertising, which unlocks new opportunities for selling ad space.

To understand how monetization relates to this ecosystem, explore our comprehensive guide on monetizing a website, a great starting point for publishers looking to convert traffic into revenue. These dynamics are evolving quickly, especially as recent Web3 monetization trends shape how publishers approach programmatic demand.

Thus, the concept intrigues the entire marketing sector and streamlines the advertising process. Today’s article provides an overview of the programmatic advertising ecosystem, offering a beginner’s guide to staying ahead of the market.

What is Programmatic Advertising?

Programmatic advertising refers to the automated buying and selling of ad inventory in real time through auction-based algorithms. These transactions occur between Supply-Side Platforms, which publishers use, and Demand-Side Platforms, which advertisers use to bid on inventory.

This concept utilizes specialized software to manage ad placement, thereby replacing traditional methods that rely on face-to-face negotiations and manual orders. Moreover, the fundamental brick of programmatic advertising is its efficiency and precision. As a result, marketers deliver targeted ads to the right audience at the right time and place.   

Let’s put it simply: programmatic advertising helps you, the marketer, company owner, or newly launched entrepreneur, reach your audience more accurately. 

How Does Programmatic Advertising Work?

So how does it actually work, step by step? At its core, programmatic advertising uses data and specialized algorithms to streamline the ad-buying process. This process depends on ad tags that trigger bid requests and generate real-time auction data, also known as the bidstream, which determines how and when an ad is served. Thus, it integrates various data points, including demographics, browsing behavior, and contextual information, to inform ad placement decisions. This automation saves time and increases the likelihood of your campaigns’ success by displaying them to the most likely converters.

Programmatic Reporting: What You Can Actually See

Transparency sounds good on paper, but what does it look like in practice? Good programmatic reporting means you’re never left guessing where your ad spend went or how your inventory performed.

At a minimum, you should be able to see:

• Impressions and fill rate: how many ad requests actually got filled, and where the gaps are;
• CPM and revenue by placement: which zones, formats, or pages are earning the most;
• Win rate by demand source: who’s actually buying your inventory, and at what price;
• Real-time dashboards: not end-of-month spreadsheets, but live data you can act on today.

The best platforms surface this without you needing a data analyst on staff. If your current reporting feels more like a black box than a dashboard, that’s usually the first sign it’s time to revisit your setup, whether that’s your SSP, your ad yield management strategy, or how you’re tracking advertising metrics overall.

More often than not, the fix isn’t tuning each tool individually; it’s cutting down the number of tools in the stack altogether. That’s essentially what a unified advertising platform is built to do: replace five disconnected systems with one.

Why Is Programmatic Advertising Important?  

Programmatic advertising has reshaped the digital advertising landscape, becoming an essential tool for marketers worldwide. Its value lies in its ability to streamline the ad-buying process, making it more efficient and effective. 

Consider that, according to Statista, global programmatic advertising spending reached $177.87 billion in 2017. In 2024, it is expected to reach $594.68 billion, whereas by 2028, experts believe programmatic advertising will generate $778.85 billion in spending.  

Spending at that scale doesn’t happen in a vacuum, and the shifts shaping adtech heading into 2026 are a big part of why the number keeps climbing.

Source: Statista 

Programmatic advertising ensures ads are where they belong by automating the ad-buying process through Real-Time Bidding. As such, it increases the relevance and impact of marketing efforts. One approach publishers use to increase auction competition and CPMs is multi-bidding, where multiple bids compete simultaneously for the same impression.  

Additionally, integrating advanced data analytics provides marketers with valuable insights into a campaign’s performance. This enables constant optimization, allowing marketers to quickly adapt to changes in user behavior.  Increasingly, that optimization is AI-driven; see our breakdown of how AI is reshaping advertising for where this is headed

The Advantages of Programmatic Advertising 

As we mentioned, the primary use case of programmatic advertising is, please allow us to explain it in a simple play on words. We used the example of reaching the right users, in the right place, at the right time, through a fully automated process.   

But let’s look at more advantages programmatic advertising comes with:  

• It’s precise – Yes, you don’t have to worry that your ad will target college students from Europe when you aim to reach a retired kindergarten teacher in New Zealand. Programmatic advertising ensures your ad reaches exactly the right audience.
• It’s efficient – Programmatic advertising’s automated nature makes it extremely fast, with ad selling and buying happening almost instantly. This speed and the efficiency it brings reduce the time and resources spent on manual ad placements. 
• It’s transparent and easy to control – Advanced programmatic platforms offer detailed analytics and reporting, giving marketers transparency into where their ads are placed and how they perform.
• It allows for easy optimization: programmatic advertising systems can continuously analyze campaign performance and make real-time adjustments to improve overall results. This dynamic optimization helps ensure that campaigns are always performing at their best, maximizing the impact of ad spending. 

Potential Drawbacks in Programmatic Advertising  

While programmatic advertising comes with many significant benefits, it is still a relatively new concept, and just like any other, it also has its potential disadvantages:  

• It has a steep learning curve – The technology and processes involved in programmatic advertising can be complex and require a certain level of technical knowledge. Marketers need to understand various platforms, data analytics, and RTB mechanisms, which can seem overwhelming at first.
• It’s transparent, but how much? Despite its bright technology, programmatic advertising still raises some concerns about transparency. Marketers may not always have full visibility into where their ads are placed and how their budget is spent.
• The potential for ad fraud – Programmatic advertising is susceptible to various forms of ad fraud, including fake impressions, clicks, and conversions generated by bots. This can affect the campaign’s results and result in wasted ad spend.
• Some might worry about data privacy – Programmatic advertising relies on data to target your addressable audience, and you must be extremely careful regarding data privacy and compliance with regulations such as GDPR and CCPA.   

Types of Programmatic Advertising 

Programmatic advertising combines automated methods for buying or selling ad space. Some of the most popular types of programmatic advertising include RTB, private marketplace, preferred deals, and programmatic direct.   

• Real-Time Bidding
• Private Marketplace
• Preferred Deals 
• Programmatic Direct

Programmatic Ad Formats 

We are all aware that numerous ad formats are available. Another benefit of programmatic ads is that you are not limited to just one or two, since this type of digital advertising supports various ad formats on both desktop and mobile devices, with some formats being more popular or widely used.

1. Display Ads 

Display ads are traditional banner ads we see on websites and apps. They can take many forms, such as images, text, or animations, making them more versatile and offering advertisers significant flexibility.   

With display ads, you can achieve various campaign goals and target different audiences, and experiment with numerous practices to create engaging banners. Moreover, these placements are often optimized through header bidding solutions.

2. Native Ads 

Native ads are designed to blend with the platform’s design where they are delivered. Thus, improving the overall user experience on that website or in that specific app.  

Usually, native ads match the look and color palette (in some cases) of the content they surround, making them less intrusive. Here, the magic happens when you know how to make them stand out among the rest of the content.  

3. Video Ads 

Video ads are short clips that typically appear before, during, or after video content on platforms such as YouTube, social media, and other streaming services. They are highly engaging and effective, offering marketers more ways to share their brand’s values with the target audience.   

4. CTV 

CTV (or Connected TV) ads are delivered on TVs and streaming devices, reaching users who prefer content delivered in a more traditional way. By the end of 2024, US marketers are expected to spend $28.75 billion on CTV, with programmatic growth directing most of that budget toward CTV.  

Source: Emarketer 

Programmatic-connected TV ads combine and leverage the reach of television with the targeting precision of digital programmatic advertising. Additionally, Server-Side Ad Insertion (SSAI) is a crucial technology that enables the seamless insertion of ads into streaming content, thereby ensuring a seamless user experience without interruptions.

5. Digital-Out-of-Home 

Digital out-of-home (DOOH) advertising involves displaying digital billboards and screens in public spaces such as supermarkets, malls, airports, bus stops, and transit stations.  

DOOH has grown in popularity over the past few years, and its success is primarily thanks to its ability to adapt to various situations, buying behaviors, and sudden events. By 2029, global digital out-of-home advertising revenue is expected to surpass $29.8 billion. 

Source: Statista 

DOOH ads leverage programmatic technology to deliver contextually relevant messages to a broader audience (e.g., weather-based or location-based ads). 

How to Run Programmatic Ads

Building and implementing a programmatic advertising strategy works, at first, like any other marketing strategy. This means that you must follow clear steps, the first of which is somewhat similar to older types of advertising. 

1. Set a Clear Objective 

First, of course, set your objective as clearly as possible. This happens across industries and in almost any situation. What are you working towards if you don’t have a clear purpose? Just as we did with the glasses shop, set an objective. You can have numerous goals, such as increasing online sales by 25%, growing your email marketing list to 10,000 users, and increasing foot traffic by 15%.

You may also want to set a timeline for your goal. Thus, let’s say you want to increase online sales by 25% in 3 months or grow your email marketing list to 10,000 subscribers by the end of the quarter. Setting this objective will help you break your goal into smaller, more manageable, and easier-to-achieve parts. With the deadline in mind, you can complete each goal in a certain time to reach your “final destination” as planned.  

2. Use Multiple (but Relevant) Channels 

Remember this: 75% of customers use multiple channels before making a purchase, according to StackAdapt’s 2023 advertising trends. With programmatic advertising, you must use multiple channels to achieve your goals. Maybe Bob spends more time on social media while Anne reads content on her preferred websites. What about Mary, who prefers watching videos and podcasts?  

When building your plan and audience, focus on the channels where your target users spend most of their time. Select the most relevant options and incorporate them into your strategy.  

Furthermore, depending on where your users are in the sales funnel, you might want to add or eliminate specific channels. This way, you can ensure your budget is not wasted. For instance, if a user is closer to converting, a more direct approach might be significantly more effective than an awareness campaign, right?  

3. Build Your Audience Wisely 

Utilize every tool at your disposal to build your audience as effectively as possible. The best-case scenario would be to interact solely with those who are likely to convert, but we all know that is not usually possible. However, it is possible to focus on users who share the same interests and values as your brand.

For example, if you promote a baby clothing store, why target users aged 18-24 rather than those over 24? Those over 24 are more likely to have a child or need to buy some baby clothes for a friend. Utilize data-driven insights to segment your audience by demographics, interests, and behavioral patterns. 

Furthermore, leverage first-party data (e.g., customer lists and website interactions) and third-party data (e.g., audience segments from data providers) to build your audience more precisely. A Customer Data Platform and a robust Sales CRM can significantly enhance this process by unifying first-party data from multiple sources, such as website interactions, CRM systems, and purchase history, into a single, actionable profile for each customer.

After you define your audience, update and refine it regularly based on performance metrics.  None of this works if the underlying data is messy or duplicated, which is why data curation has quietly become one of the more important steps in the process.

4. Always Optimize

We all know this is one of the most important “laws” in marketing, especially digital marketing. Constantly review your campaign performance data to identify areas for improvement through data-driven adjustments. Many publishers employ Supply Path Optimization (SPO) strategies to streamline ad delivery paths, eliminate hidden fees, and enhance efficiency across their programmatic partners.

For example, you could adjust targeting parameters, adjust bids, or test different ad creatives to increase engagement and conversion rates. Thus, optimization is an ongoing process that needs continuous adjustment. This way, you can refine your strategy to remain effective and efficient, ensuring you allocate your advertising budget effectively.    

How Much Does Programmatic Advertising Cost?  

The costs involved in programmatic advertising usually vary depending on the type of campaign you build, the complexity of the targeting process, the chosen ad formats, and, last but not least, the programmatic advertising platforms you rely on to deliver your ads.  

Furthermore, programmatic advertising costs are determined by the bidding type used (as we mentioned before, there are numerous types, the most popular being Real-Time Bidding, Private Marketplace, Preferred Deals, and Programmatic Direct).  

In RTB (Real-Time Bidding), the cost is usually influenced by the competition in a specific bid. It is often measured in CPM (Cost per Mille), CPC (Cost per Click), and CPA (Cost per Acquisition).  

For PMPs (Private Marketplaces) and Programmatic Direct, pricing is negotiated with publishers and may sometimes imply a fixed CPM rate. This is the same trade-off you’ll find with direct ad sales more broadly: you give up some of RTB’s automation in exchange for control over price and placement

FAQ

In Conclusion 

You may think that programmatic advertising is a more complicated process than other digital marketing concepts. However, its complexity lies in the advanced nature of the specialized programmatic advertising platforms, which require technical knowledge.  

Fortunately, once you discover how programmatic advertising works and learn how to make it work for your brand, you will most likely feel the advantages of this concept. The fact that the ad buying and selling are conducted almost instantly makes it significantly more efficient.

Additionally, if you set the targeting parameters correctly, you can be more certain that your campaign will reach the right users at the right place and time, as we mentioned earlier.