Understanding the Halo Effect Between CTV, Meta, and Search Campaigns

Overview

When multiple marketing channels run the same audience simultaneously, it is common for one channel to influence the performance of another. This is known as the halo effect.

A common example is the relationship between Connected TV (CTV), Meta (Facebook/Instagram), and Google Search campaigns. In this model:

• CTV drives awareness

• Meta captures engagement and consideration

• Search captures high-intent demand

Even when Meta or Google receives attribution for the conversion, earlier CTV exposure may have influenced the user’s decision to take action.

Understanding this dynamic helps marketers interpret results more accurately and measure the full impact of their campaigns.

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What Is the Halo Effect?

The halo effect occurs when exposure in one advertising channel improves the performance of another.

For example:

1. A viewer sees a CTV ad on Hulu, Peacock, or Max.

2. Later, they encounter a Meta ad in their social feed.

3. At some point afterward, they search for the brand or event on Google.

4. They click a search result and convert.

In many attribution models, the conversion will be credited to Meta or Google Search, even though the initial brand awareness was created through CTV.

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Why CTV, Meta, and Search Work Well Together

Each channel plays a different role within the marketing funnel.

Funnel Stage	Channel Role
Awareness	CTV introduces the brand through high-impact video placements
Consideration	Meta reinforces messaging through social feeds and retargeting
Conversion	Search captures demand when users actively look for the brand

This creates a natural sequence:

1. CTV introduces the message

2. Meta reinforces it

3. Search captures intent

Because the user journey often spans multiple devices and moments, these channels work best when deployed together rather than in isolation.

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Why Conversions Often Appear in Meta or Search

Even when CTV initiates the journey, conversions frequently appear in Meta or Search reporting because:

• Social platforms are highly optimized for click-through engagement

• Search captures existing demand when users actively look for the brand

• Users can immediately visit a website or purchase from their device

Meanwhile, CTV exposure typically occurs on a television screen, where the user cannot easily click through at that moment.

This means CTV often functions as the initial catalyst for demand, while other channels capture the measurable action.

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Signals That a Halo Effect Is Occurring

Because attribution models rarely capture cross-channel influence perfectly, marketers should look for supporting signals across multiple data sources.

Below are several indicators that CTV may be contributing to broader marketing performance.

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1. Increase in New Users in Google Analytics

If CTV campaigns are driving awareness, you may see an increase in new top-of-funnel traffic.

Monitor:

• New Users in Google Analytics

• Direct traffic growth

• Branded search queries

A noticeable lift in new visitors during a CTV flight can indicate that viewers are later visiting the site via search or direct navigation.

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2. Lift in Google Search Performance

CTV can also influence search behavior.

Common signals include:

• Increased branded search volume

• Higher click-through rates on branded keywords

• Increased organic search traffic

In many cases, users exposed to a streaming ad will search for the brand or event later, causing search campaigns to perform more efficiently.

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3. Stronger Performance in Meta Campaigns

When users have already been exposed to a brand through CTV, social ads often see improved performance.

Possible indicators include:

• Higher click-through rates

• Improved conversion rates

• Lower cost per acquisition

This occurs because the audience already has familiarity with the brand message, making them more likely to engage when they see the ad again in social feeds.

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4. Increase in Identity Resolution Through the Untitled Tag

Another way to evaluate the halo effect is by observing identity resolution growth inside the Untitled platform.

When CTV campaigns generate awareness, more users often visit the site shortly afterward. As they do, the Untitled Tag may resolve additional user identities, increasing the number of matched profiles.

Watch for:

• Increased ID resolutions

• Growth in recognized visitors

• Expansion of addressable audience profiles

An increase in resolved identities during a CTV campaign can indicate that previously unknown visitors are now interacting with the site after seeing the ad.

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Practical Example

A typical omnichannel journey might look like this:

1. A viewer sees a CTV ad promoting an upcoming event.

2. Later, they encounter a Meta ad for the same event.

3. The brand becomes familiar and credible.

4. The user eventually searches the event name on Google and purchases tickets.

In most attribution models, the conversion is credited to Google Search, but the initial demand may have been created by CTV exposure.

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Key Takeaway

CTV campaigns often influence marketing performance across multiple channels even when attribution models do not reflect it directly.

When evaluating campaign results, consider the broader ecosystem:

• CTV builds awareness

• Meta reinforces messaging and engagement

• Search captures demand

• Identity resolution increases as new users visit the site

When these channels run together, they can produce a measurable halo effect that improves overall campaign efficiency and conversion performance.