OTT Measurement: 8 Key Metrics To Track

7 min read·Dec 20, 2024

Are you finding it hard to figure out how well your OTT campaigns are working? You’re not the only one.

With so many metrics out there, it’s easy to get confused. 

Which ones matter the most? And how do you know if your campaigns are actually driving results?

Here’s why OTT measurement is so important:

  • If you don’t track the right metrics, you could be wasting money on ads that don’t deliver.
  • Without accurate data, you might miss the chance to fix issues and improve your campaign’s performance.

In this blog, I’ll walk you through the 8 key OTT metrics every marketer should track. 

These metrics will help you:

  • See how effective your campaigns really are.
  • Understand what’s engaging your audience.
  • Get the most out of your ad spend.

By the end, you’ll know exactly what to track and how to use these metrics to make smarter decisions and better campaigns.

If you’re ready to take control of your OTT performance, let’s get started!

Also, before we jump into the details, here's a quick reference guide summarizing all the key OTT metrics we will discuss. 

Ideal Use Cases for Key OTT Metrics: Quick Glance

This table gives you a clear snapshot of what each metric measures and who it’s ideal for, helping you stay on top of your campaign’s performance.

MetricPurposeIdeal For
ImpressionsMeasures ad visibility and reach.Brand Managers, Advertisers
Conversion RateTracks how well the campaign drives actions.Marketers, Product Teams
Cost Per Mille (CPM)Measures the cost efficiency of impressions.Budget Planners, Advertisers
Cost Per Acquisition (CPA)Evaluates the cost of gaining a customer.Business Analysts, Marketers
Viewability RateTracks how often ads are actually seen.Advertisers, Media Buyers
Completion RateMeasures how many viewers watched the ad fully.Content Creators, Advertisers
Audience ReachUnderstands the size of your potential audience.Business Decision Makers
Return on Ad Spend (ROAS)Tracks profitability of ad spend.Marketers, Finance Teams

What is OTT Measurement?

OTT (Over-The-Top) measurement is all about tracking and analyzing how well your ads are doing on streaming platforms like Netflix, Hulu, and YouTube.

With OTT measurement, you can see how often your ad is shown, how many people watch it, and how many take action after seeing it. 

This helps you understand if your ad is reaching the right people and if your campaign is working.

OTT measurement is crucial for you as a marketer to see how well your ad campaigns are working. 

Without it, you could be spending money without knowing what’s really working.

Here’s why OTT measurement matters:

  • Optimize ad spend: By tracking the right metrics, you can ensure you’re not wasting money on ads that don’t perform.
  • Target the right audience: Measurement helps you figure out who’s watching and how to reach them more effectively.
  • Improve content: Knowing what works and what doesn’t lets you tweak your content for better performance in future campaigns.

Understanding OTT measurement is the first step. Next, let’s explore the 8 key metrics you should track to make sure your campaigns are on the right track.

8 Key OTT Metrics Every Marketer Should Track

When it comes to OTT measurement, knowing how to track and interpret the right metrics can make or break your campaign. 

These metrics help you understand how your ads are performing across platforms like Netflix, Hulu, and YouTube. 

If you focus on the right data points, you can optimize your strategy and make smarter decisions about ad spend and audience targeting.

Here are 8 key OTT metrics you should track:

1. Impressions

Impressions are one of the first things you’ll look at when evaluating your OTT measurement strategy. 

Simply put, impressions track how many times your ad is displayed to viewers

But remember, it doesn’t matter if the viewer engages with it or skips it—every time the ad shows up, it counts as an impression.

  • For example, If 1,000 people see your ad, you have 1,000 impressions. If the same person sees it five times, that counts as five impressions.
  • Impressions give you a sense of how visible your campaign is and how many people are being exposed to your message. 
  • But, impressions don’t tell you if viewers actually care about what they see—they’re just a number to show reach.

2. Conversion Rate

The conversion rate tracks how many people take the action you want them to after seeing your ad. 

This could be buying a product, signing up for an email list, or downloading an app.

  • For instance, let’s say 100 people see your ad, and 5 of them make a purchase. Your conversion rate would be 5%.
  • A good conversion rate means your ad is successfully pushing people to take the next step with your brand. 
  • But if the conversion rate is low, it’s a sign that something’s off—either with the ad content or how it's targeting the audience.

3. Cost Per Mille (CPM)

CPM measures how much it costs to get 1,000 impressions of your ad. 

It’s an OTT measurement that helps you evaluate your ad spend in relation to how many people are seeing your ad. 

Lower CPM means you’re getting more views for less money.

  • For example, if you spend $200 on ads and get 100,000 impressions, your CPM is $2 (200 / 100 * 1000).
  • The goal is to get as many impressions as possible without overspending. 
  • If your CPM is high, it might mean you’re not optimizing your targeting, or you’re bidding too high.

4. Cost Per Acquisition (CPA)


CPA tells you how much you spend to acquire one customer or lead

If your goal is to generate sales, you need to track this to see how efficient your ad spend is. 

A lower CPA means you're spending less money to gain a customer.

  • For example, if you spend $500 on ads and gain 50 customers, your CPA is $10 (500 / 50).
  • CPA is an important OTT measurement because it directly affects your ROI. 
  • If you’re spending too much on acquiring each customer, it could mean you’re not getting enough returns.

5. Viewability Rate


Viewability rate measures the percentage of impressions that are actually seen by the viewers. 

For an ad to be considered viewable, it usually needs to be visible for at least 2 seconds, covering 50% of the screen.

If your ad is skipped or not visible, it doesn’t count.

  • For instance, If your ad gets 100,000 impressions, but only 80,000 of them meet the viewability criteria, your viewability rate is 80%.
  • The higher the viewability rate, the better—it means your ad is actually being seen, not just counted as a display.

6. Completion Rate


The completion rate shows how many viewers watch your ad all the way to the end. 

This is particularly important for video ads because it tells you whether your content is engaging enough to hold attention.

  • For example, if 1,000 people start watching your 30-second video, and 600 of them watch it completely, your completion rate is 60%.
  • A higher completion rate means your content is capturing attention. 
  • If it's low, it might be time to rethink your creative or make your videos shorter to keep viewers engaged.

7. Audience Reach

Audience reach tells you how many unique viewers or households have seen your ad. 

It’s a crucial metric to understand how large your audience is. 

The broader your reach, the more potential customers you can connect with.

  • For instance, if your ad has reached 500,000 people, that’s your audience reach. It’s different from impressions because it only counts unique viewers.
  • Expanding your audience reach can help grow your brand’s awareness. 
  • However, be sure your audience is relevant to your product to avoid wasting ad spend.

8. Return on Ad Spend (ROAS)

ROAS is one of the most critical metrics in OTT measurement because it tells you how much revenue you're generating for every dollar spent on ads. 

A high ROAS means your ads are paying off. 

A low ROAS suggests that your ad spend isn’t bringing in enough returns.

  • For example, if you spent $1,000 on ads and generated $5,000 in revenue, your ROAS would be 5. This means for every $1 you spent, you made $5.
  • If your ROAS is lower than expected, look into optimizing your ad targeting, adjusting your creative, or refining your offer to improve returns.

Conclusion

In this blog, we explored OTT measurement and its importance in tracking the success of your campaigns.

Here’s what we covered:

  • The 8 key OTT metrics every marketer should track, such as Impressions, Conversion Rate, and ROAS.
  • How these metrics help you understand ad performance, optimize spend, and refine targeting.
  • Why focusing on accurate and actionable data is essential to making smarter decisions for your campaigns.

By tracking these metrics, you can ensure your ads are not just seen but are also driving meaningful results. 

This approach allows you to optimize your campaigns effectively and maximize your return on investment.

Understanding and applying OTT measurement isn’t just a strategy—it’s the key to getting better results from your campaigns.

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